Patent
US 10,618,813CARBON NITRIDE MODIFIED WITH PERYLENETETRACARBOXYLIC DIANHYDRIDE/GRAPHENE OXIDE AEROGEL COMPOSITE MATERIAL, PREPARATION METHOD AND APPLICATION THEREOF
Jianmei LU
US
Copyright © 2026 Matter42. All rights reserved.
Patent
Atlas literature
Patent
US 10,618,813Patent drawings and their descriptions. Click a drawing to enlarge it.
Figure 1 is the SEM image of graphitic carbon nitride;
Figure 2 is the TEM image of graphitic carbon nitride;
Figure 3 is the TE M image of graphitic carbon nitride mod if ied with perylenetetracarb o xylic dianhydride;
Figure 4 is the SEM image of 3D aer oge l of graphitic carbon nitride m odi fied with perylenetetracarboxylic dianhydride and graphene oxide;
Figure 5 is the TEM image of 3D aerogel of graphitic carbon nitride modified with perylenetetracarboxylic dianhydride and graphene oxide;
Figure 6 is effect of ph oto cata l ytic degradation NO by the c ompo sit es;
Figure 7 is cycling runs f or the photocatalytic degradation of NO over 3D aerogel of graphitic carbon nitride modified with pe r ylenetetracarboxylic dianhydride and graphene oxide.
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
A preparation method of carbon nitride modified with perylenetetracarboxylic dianhydride/graphene oxide aerogel composite material, characterized in comprising the following steps: (1) preparing carbon nitride nanosheets by calcination using dicyandiamide as raw material; (2) reacting perylenetetracarboxylic dianhydride and carbon nitride nanosheets in imidazole to prepare carbon nitride modified with perylenetetracarboxylic dianhydride; (3) dispersing said carbon nitride modified with perylenetetracarboxylic dianhydride and graphene oxide into deionized water, freeze-drying after the reaction to obtain carbon nitride modified with perylenetetracarboxylic dianhydride/graphene oxide aerogel composite material.
The preparation method of carbon nitride modified with perylenetetracarboxylic dianhydride/graphene oxide aerogel composite material according to claim 1, wherein in step (1), the calcination is carried out at 400 to 700 0 C for 3 to 6 hours under the protection of argon, the rate of temperature rise during calcination is 2 to 15 0 C per minute.
The preparation method of carbon nitride modified with perylenetetracarboxylic dianhydride/graphene oxide aerogel composite material according to claim 1, wherein in step (2), the mass ratio of perylenetetracarboxylic dianhydride, carbon nitride nanosheets and imidazole is 1:30:120; the reaction is carried out at 130 to 160 0 C for 4 to 7 hours.
The preparation method of carbon nitride modified with perylenetetracarboxylic dianhydride/graphene oxide aerogel composite material according to claim 1, wherein in step (2), after the reaction, the product is added to an aqueous solution of K 2 C O 3, refluxed for I to 3 hours, cooled to room temperature, then centrifuged, washed with hydrochloric acid, and then washed with water and ethanol until neutral, and finally vacuum dried for 3 to 6 hours to prepare carbon nitride modified with perylenetetracarboxyl i c dianhydride.
The preparation method of carbon nitride modified with perylenetetracarboxylic dianhydride/graphene oxide aerogel composite material according to claim 1, wherein in step (3), the mass ratio of said nitride modified with perylenetetracarboxylic dianhydride and said graphene oxide is 3:1; taking ultrasonic treatment after dispersing in deionized water, the reaction is carried out at 160 to 200 0 C for 5 to 8 hours; said freeze-drying is keeping in a freeze drying oven for 1 to 2 days.
Carbon nitride modified with perylenetetracarboxylic dianhydride/graphene oxide aerogel composite material prepared by the preparation method of carbon nitride modified with perylenetetracarboxylic dianhydride/graphene oxide aerogel composite material according to claim 1.
A preparation method of carbon nitride modified with perylenetetracarboxylic dianhydride/graphene oxide aerogel composite material, characterized in comprising the following steps: (1) preparing carbon nitride nanosheets by calcination using dicyandiamide as raw material; (2) reacting perylenetetracarboxylic dianhydride and carbon nitride nanosheets in imidazole to prepare carbon nitride modified with perylenetetracarboxylic dianhydride; (3) dispersing said carbon nitride modified with perylenetetracarboxylic dianhydride and graphene oxide into deionized water to obtain carbon nitride modified with perylenetetracarboxylic dianhydride/graphene oxide aerogel composite material.
The preparation method of carbon nitride modified with perylenetetracarboxylic dianhydride/graphene oxide aerogel composite material according to claim 6, wherein in step (1), the calcination is carried out at 400 to 700 0 C for 3 to 6 hours under the protection of argon, the rate of temperature rise during calcination is 2 to 15 0 C per minute; in step (2), the mass ratio of perylenetetracarboxylic dianhydride, carbon nitride nanosheets and imidazole is 1:30:120; the reaction is carried out at 130 to 160 0 C for 4 to 7 hours; in step (3), the mass ratio of said nitride modified with perylenetetracarboxylic dianhydride and said graphene oxide is 3:1; taking ultrasonic treatment after dispersing in deionized water, the reaction is carried out at 160 to 200 0 C for 5 to 8 hours.
Carbon nitride modified with perylenetetracarboxylic dianhydride/graphene oxide aerogel composite material prepared by the preparation method of carbon nitride modified with perylenetetracarboxylic dianhydride/graphene oxide aerogel composite material according to claim 6.
Embodiments described in the patent, grouped by the materials and process steps they use.
2 materials1 process step
10 g of dicyandiamide placed in a porcelain crucible, calcined at 600 °C for 5 hours at 10 °C/min under argon protection to obtain yellow carbon nitride nanosheets, then ground into powder. SEM and TEM images confirmed thin sheet structure.
3 materials1 process step
0.05 g PTCDA, 1.0 g carbon nitride, and 4.0 g imidazole added to a round-bottomed flask; reaction at 150 °C for 6 hours under nitrogen atmosphere using imidazole as solvent. After cooling, product transferred to K₂CO₃ solution (150 mL), refluxed 2 hours, centrifuged, washed with HCl, water and ethanol to neutral, vacuum dried 5 hours. TEM confirmed thin sheet-like structure.
3 materials1 process step
90 mg of PTCDA-modified carbon nitride and 30 mg graphene oxide dispersed in 20 mL water, sonicated 2 hours. Transferred to Teflon-lined stainless autoclave, reacted at 190 °C for 6 hours. Cooled to room temperature, columnar hydrogel washed three times with deionized water, freeze-dried in oven for 2 days to obtain columnar aerogel. SEM and TEM images showed macroporous structure and well-compounded carbon nitride/graphene.
1 material
50 mg of PTCDA-modified carbon nitride/graphene oxide aerogel used in a batch reactor (2.2 L volume) with one quartz glass for photocatalytic degradation of nitric oxide.
Materials described outside the worked examples.
imidazole
C₃H₄N₂
Measurements and analyses referenced in the patent, with their drawing references.
SEM image (Figure 1) of carbon nitride showing thin sheet structure
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
Duration | 3–6 hours | — |
Duration |
Related documents with shared materials, methods, properties, or citations.
Patent
Atlas literature
Patent
US 10,618,813Patent drawings and their descriptions. Click a drawing to enlarge it.
Figure 1 is the SEM image of graphitic carbon nitride;
Figure 2 is the TEM image of graphitic carbon nitride;
Figure 3 is the TE M image of graphitic carbon nitride mod if ied with perylenetetracarb o xylic dianhydride;
Figure 4 is the SEM image of 3D aer oge l of graphitic carbon nitride m odi fied with perylenetetracarboxylic dianhydride and graphene oxide;
Figure 5 is the TEM image of 3D aerogel of graphitic carbon nitride modified with perylenetetracarboxylic dianhydride and graphene oxide;
Figure 6 is effect of ph oto cata l ytic degradation NO by the c ompo sit es;
Figure 7 is cycling runs f or the photocatalytic degradation of NO over 3D aerogel of graphitic carbon nitride modified with pe r ylenetetracarboxylic dianhydride and graphene oxide.
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
A preparation method of carbon nitride modified with perylenetetracarboxylic dianhydride/graphene oxide aerogel composite material, characterized in comprising the following steps: (1) preparing carbon nitride nanosheets by calcination using dicyandiamide as raw material; (2) reacting perylenetetracarboxylic dianhydride and carbon nitride nanosheets in imidazole to prepare carbon nitride modified with perylenetetracarboxylic dianhydride; (3) dispersing said carbon nitride modified with perylenetetracarboxylic dianhydride and graphene oxide into deionized water, freeze-drying after the reaction to obtain carbon nitride modified with perylenetetracarboxylic dianhydride/graphene oxide aerogel composite material.
The preparation method of carbon nitride modified with perylenetetracarboxylic dianhydride/graphene oxide aerogel composite material according to claim 1, wherein in step (1), the calcination is carried out at 400 to 700 0 C for 3 to 6 hours under the protection of argon, the rate of temperature rise during calcination is 2 to 15 0 C per minute.
The preparation method of carbon nitride modified with perylenetetracarboxylic dianhydride/graphene oxide aerogel composite material according to claim 1, wherein in step (2), the mass ratio of perylenetetracarboxylic dianhydride, carbon nitride nanosheets and imidazole is 1:30:120; the reaction is carried out at 130 to 160 0 C for 4 to 7 hours.
The preparation method of carbon nitride modified with perylenetetracarboxylic dianhydride/graphene oxide aerogel composite material according to claim 1, wherein in step (2), after the reaction, the product is added to an aqueous solution of K 2 C O 3, refluxed for I to 3 hours, cooled to room temperature, then centrifuged, washed with hydrochloric acid, and then washed with water and ethanol until neutral, and finally vacuum dried for 3 to 6 hours to prepare carbon nitride modified with perylenetetracarboxyl i c dianhydride.
The preparation method of carbon nitride modified with perylenetetracarboxylic dianhydride/graphene oxide aerogel composite material according to claim 1, wherein in step (3), the mass ratio of said nitride modified with perylenetetracarboxylic dianhydride and said graphene oxide is 3:1; taking ultrasonic treatment after dispersing in deionized water, the reaction is carried out at 160 to 200 0 C for 5 to 8 hours; said freeze-drying is keeping in a freeze drying oven for 1 to 2 days.
Carbon nitride modified with perylenetetracarboxylic dianhydride/graphene oxide aerogel composite material prepared by the preparation method of carbon nitride modified with perylenetetracarboxylic dianhydride/graphene oxide aerogel composite material according to claim 1.
A preparation method of carbon nitride modified with perylenetetracarboxylic dianhydride/graphene oxide aerogel composite material, characterized in comprising the following steps: (1) preparing carbon nitride nanosheets by calcination using dicyandiamide as raw material; (2) reacting perylenetetracarboxylic dianhydride and carbon nitride nanosheets in imidazole to prepare carbon nitride modified with perylenetetracarboxylic dianhydride; (3) dispersing said carbon nitride modified with perylenetetracarboxylic dianhydride and graphene oxide into deionized water to obtain carbon nitride modified with perylenetetracarboxylic dianhydride/graphene oxide aerogel composite material.
The preparation method of carbon nitride modified with perylenetetracarboxylic dianhydride/graphene oxide aerogel composite material according to claim 6, wherein in step (1), the calcination is carried out at 400 to 700 0 C for 3 to 6 hours under the protection of argon, the rate of temperature rise during calcination is 2 to 15 0 C per minute; in step (2), the mass ratio of perylenetetracarboxylic dianhydride, carbon nitride nanosheets and imidazole is 1:30:120; the reaction is carried out at 130 to 160 0 C for 4 to 7 hours; in step (3), the mass ratio of said nitride modified with perylenetetracarboxylic dianhydride and said graphene oxide is 3:1; taking ultrasonic treatment after dispersing in deionized water, the reaction is carried out at 160 to 200 0 C for 5 to 8 hours.
Carbon nitride modified with perylenetetracarboxylic dianhydride/graphene oxide aerogel composite material prepared by the preparation method of carbon nitride modified with perylenetetracarboxylic dianhydride/graphene oxide aerogel composite material according to claim 6.
Embodiments described in the patent, grouped by the materials and process steps they use.
2 materials1 process step
10 g of dicyandiamide placed in a porcelain crucible, calcined at 600 °C for 5 hours at 10 °C/min under argon protection to obtain yellow carbon nitride nanosheets, then ground into powder. SEM and TEM images confirmed thin sheet structure.
3 materials1 process step
0.05 g PTCDA, 1.0 g carbon nitride, and 4.0 g imidazole added to a round-bottomed flask; reaction at 150 °C for 6 hours under nitrogen atmosphere using imidazole as solvent. After cooling, product transferred to K₂CO₃ solution (150 mL), refluxed 2 hours, centrifuged, washed with HCl, water and ethanol to neutral, vacuum dried 5 hours. TEM confirmed thin sheet-like structure.
3 materials1 process step
90 mg of PTCDA-modified carbon nitride and 30 mg graphene oxide dispersed in 20 mL water, sonicated 2 hours. Transferred to Teflon-lined stainless autoclave, reacted at 190 °C for 6 hours. Cooled to room temperature, columnar hydrogel washed three times with deionized water, freeze-dried in oven for 2 days to obtain columnar aerogel. SEM and TEM images showed macroporous structure and well-compounded carbon nitride/graphene.
1 material
50 mg of PTCDA-modified carbon nitride/graphene oxide aerogel used in a batch reactor (2.2 L volume) with one quartz glass for photocatalytic degradation of nitric oxide.
Materials described outside the worked examples.
imidazole
C₃H₄N₂
Measurements and analyses referenced in the patent, with their drawing references.
SEM image (Figure 1) of carbon nitride showing thin sheet structure
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
Duration | 3–6 hours | — |
Duration |
Related documents with shared materials, methods, properties, or citations.
Patent
Atlas literature
Patent
US 10,618,813Patent drawings and their descriptions. Click a drawing to enlarge it.
Figure 1 is the SEM image of graphitic carbon nitride;
Figure 2 is the TEM image of graphitic carbon nitride;
Figure 3 is the TE M image of graphitic carbon nitride mod if ied with perylenetetracarb o xylic dianhydride;
Figure 4 is the SEM image of 3D aer oge l of graphitic carbon nitride m odi fied with perylenetetracarboxylic dianhydride and graphene oxide;
Figure 5 is the TEM image of 3D aerogel of graphitic carbon nitride modified with perylenetetracarboxylic dianhydride and graphene oxide;
Figure 6 is effect of ph oto cata l ytic degradation NO by the c ompo sit es;
Figure 7 is cycling runs f or the photocatalytic degradation of NO over 3D aerogel of graphitic carbon nitride modified with pe r ylenetetracarboxylic dianhydride and graphene oxide.
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
A preparation method of carbon nitride modified with perylenetetracarboxylic dianhydride/graphene oxide aerogel composite material, characterized in comprising the following steps: (1) preparing carbon nitride nanosheets by calcination using dicyandiamide as raw material; (2) reacting perylenetetracarboxylic dianhydride and carbon nitride nanosheets in imidazole to prepare carbon nitride modified with perylenetetracarboxylic dianhydride; (3) dispersing said carbon nitride modified with perylenetetracarboxylic dianhydride and graphene oxide into deionized water, freeze-drying after the reaction to obtain carbon nitride modified with perylenetetracarboxylic dianhydride/graphene oxide aerogel composite material.
The preparation method of carbon nitride modified with perylenetetracarboxylic dianhydride/graphene oxide aerogel composite material according to claim 1, wherein in step (1), the calcination is carried out at 400 to 700 0 C for 3 to 6 hours under the protection of argon, the rate of temperature rise during calcination is 2 to 15 0 C per minute.
The preparation method of carbon nitride modified with perylenetetracarboxylic dianhydride/graphene oxide aerogel composite material according to claim 1, wherein in step (2), the mass ratio of perylenetetracarboxylic dianhydride, carbon nitride nanosheets and imidazole is 1:30:120; the reaction is carried out at 130 to 160 0 C for 4 to 7 hours.
The preparation method of carbon nitride modified with perylenetetracarboxylic dianhydride/graphene oxide aerogel composite material according to claim 1, wherein in step (2), after the reaction, the product is added to an aqueous solution of K 2 C O 3, refluxed for I to 3 hours, cooled to room temperature, then centrifuged, washed with hydrochloric acid, and then washed with water and ethanol until neutral, and finally vacuum dried for 3 to 6 hours to prepare carbon nitride modified with perylenetetracarboxyl i c dianhydride.
The preparation method of carbon nitride modified with perylenetetracarboxylic dianhydride/graphene oxide aerogel composite material according to claim 1, wherein in step (3), the mass ratio of said nitride modified with perylenetetracarboxylic dianhydride and said graphene oxide is 3:1; taking ultrasonic treatment after dispersing in deionized water, the reaction is carried out at 160 to 200 0 C for 5 to 8 hours; said freeze-drying is keeping in a freeze drying oven for 1 to 2 days.
Carbon nitride modified with perylenetetracarboxylic dianhydride/graphene oxide aerogel composite material prepared by the preparation method of carbon nitride modified with perylenetetracarboxylic dianhydride/graphene oxide aerogel composite material according to claim 1.
A preparation method of carbon nitride modified with perylenetetracarboxylic dianhydride/graphene oxide aerogel composite material, characterized in comprising the following steps: (1) preparing carbon nitride nanosheets by calcination using dicyandiamide as raw material; (2) reacting perylenetetracarboxylic dianhydride and carbon nitride nanosheets in imidazole to prepare carbon nitride modified with perylenetetracarboxylic dianhydride; (3) dispersing said carbon nitride modified with perylenetetracarboxylic dianhydride and graphene oxide into deionized water to obtain carbon nitride modified with perylenetetracarboxylic dianhydride/graphene oxide aerogel composite material.
The preparation method of carbon nitride modified with perylenetetracarboxylic dianhydride/graphene oxide aerogel composite material according to claim 6, wherein in step (1), the calcination is carried out at 400 to 700 0 C for 3 to 6 hours under the protection of argon, the rate of temperature rise during calcination is 2 to 15 0 C per minute; in step (2), the mass ratio of perylenetetracarboxylic dianhydride, carbon nitride nanosheets and imidazole is 1:30:120; the reaction is carried out at 130 to 160 0 C for 4 to 7 hours; in step (3), the mass ratio of said nitride modified with perylenetetracarboxylic dianhydride and said graphene oxide is 3:1; taking ultrasonic treatment after dispersing in deionized water, the reaction is carried out at 160 to 200 0 C for 5 to 8 hours.
Carbon nitride modified with perylenetetracarboxylic dianhydride/graphene oxide aerogel composite material prepared by the preparation method of carbon nitride modified with perylenetetracarboxylic dianhydride/graphene oxide aerogel composite material according to claim 6.
Embodiments described in the patent, grouped by the materials and process steps they use.
2 materials1 process step
10 g of dicyandiamide placed in a porcelain crucible, calcined at 600 °C for 5 hours at 10 °C/min under argon protection to obtain yellow carbon nitride nanosheets, then ground into powder. SEM and TEM images confirmed thin sheet structure.
3 materials1 process step
0.05 g PTCDA, 1.0 g carbon nitride, and 4.0 g imidazole added to a round-bottomed flask; reaction at 150 °C for 6 hours under nitrogen atmosphere using imidazole as solvent. After cooling, product transferred to K₂CO₃ solution (150 mL), refluxed 2 hours, centrifuged, washed with HCl, water and ethanol to neutral, vacuum dried 5 hours. TEM confirmed thin sheet-like structure.
3 materials1 process step
90 mg of PTCDA-modified carbon nitride and 30 mg graphene oxide dispersed in 20 mL water, sonicated 2 hours. Transferred to Teflon-lined stainless autoclave, reacted at 190 °C for 6 hours. Cooled to room temperature, columnar hydrogel washed three times with deionized water, freeze-dried in oven for 2 days to obtain columnar aerogel. SEM and TEM images showed macroporous structure and well-compounded carbon nitride/graphene.
1 material
50 mg of PTCDA-modified carbon nitride/graphene oxide aerogel used in a batch reactor (2.2 L volume) with one quartz glass for photocatalytic degradation of nitric oxide.
Materials described outside the worked examples.
imidazole
C₃H₄N₂
Measurements and analyses referenced in the patent, with their drawing references.
SEM image (Figure 1) of carbon nitride showing thin sheet structure
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
Duration | 3–6 hours | — |
Duration |
Related documents with shared materials, methods, properties, or citations.
Patent
Atlas literature
Patent
US 10,618,813Patent drawings and their descriptions. Click a drawing to enlarge it.
Figure 1 is the SEM image of graphitic carbon nitride;
Figure 2 is the TEM image of graphitic carbon nitride;
Figure 3 is the TE M image of graphitic carbon nitride mod if ied with perylenetetracarb o xylic dianhydride;
Figure 4 is the SEM image of 3D aer oge l of graphitic carbon nitride m odi fied with perylenetetracarboxylic dianhydride and graphene oxide;
Figure 5 is the TEM image of 3D aerogel of graphitic carbon nitride modified with perylenetetracarboxylic dianhydride and graphene oxide;
Figure 6 is effect of ph oto cata l ytic degradation NO by the c ompo sit es;
Figure 7 is cycling runs f or the photocatalytic degradation of NO over 3D aerogel of graphitic carbon nitride modified with pe r ylenetetracarboxylic dianhydride and graphene oxide.
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
A preparation method of carbon nitride modified with perylenetetracarboxylic dianhydride/graphene oxide aerogel composite material, characterized in comprising the following steps: (1) preparing carbon nitride nanosheets by calcination using dicyandiamide as raw material; (2) reacting perylenetetracarboxylic dianhydride and carbon nitride nanosheets in imidazole to prepare carbon nitride modified with perylenetetracarboxylic dianhydride; (3) dispersing said carbon nitride modified with perylenetetracarboxylic dianhydride and graphene oxide into deionized water, freeze-drying after the reaction to obtain carbon nitride modified with perylenetetracarboxylic dianhydride/graphene oxide aerogel composite material.
The preparation method of carbon nitride modified with perylenetetracarboxylic dianhydride/graphene oxide aerogel composite material according to claim 1, wherein in step (1), the calcination is carried out at 400 to 700 0 C for 3 to 6 hours under the protection of argon, the rate of temperature rise during calcination is 2 to 15 0 C per minute.
The preparation method of carbon nitride modified with perylenetetracarboxylic dianhydride/graphene oxide aerogel composite material according to claim 1, wherein in step (2), the mass ratio of perylenetetracarboxylic dianhydride, carbon nitride nanosheets and imidazole is 1:30:120; the reaction is carried out at 130 to 160 0 C for 4 to 7 hours.
The preparation method of carbon nitride modified with perylenetetracarboxylic dianhydride/graphene oxide aerogel composite material according to claim 1, wherein in step (2), after the reaction, the product is added to an aqueous solution of K 2 C O 3, refluxed for I to 3 hours, cooled to room temperature, then centrifuged, washed with hydrochloric acid, and then washed with water and ethanol until neutral, and finally vacuum dried for 3 to 6 hours to prepare carbon nitride modified with perylenetetracarboxyl i c dianhydride.
The preparation method of carbon nitride modified with perylenetetracarboxylic dianhydride/graphene oxide aerogel composite material according to claim 1, wherein in step (3), the mass ratio of said nitride modified with perylenetetracarboxylic dianhydride and said graphene oxide is 3:1; taking ultrasonic treatment after dispersing in deionized water, the reaction is carried out at 160 to 200 0 C for 5 to 8 hours; said freeze-drying is keeping in a freeze drying oven for 1 to 2 days.
Carbon nitride modified with perylenetetracarboxylic dianhydride/graphene oxide aerogel composite material prepared by the preparation method of carbon nitride modified with perylenetetracarboxylic dianhydride/graphene oxide aerogel composite material according to claim 1.
A preparation method of carbon nitride modified with perylenetetracarboxylic dianhydride/graphene oxide aerogel composite material, characterized in comprising the following steps: (1) preparing carbon nitride nanosheets by calcination using dicyandiamide as raw material; (2) reacting perylenetetracarboxylic dianhydride and carbon nitride nanosheets in imidazole to prepare carbon nitride modified with perylenetetracarboxylic dianhydride; (3) dispersing said carbon nitride modified with perylenetetracarboxylic dianhydride and graphene oxide into deionized water to obtain carbon nitride modified with perylenetetracarboxylic dianhydride/graphene oxide aerogel composite material.
The preparation method of carbon nitride modified with perylenetetracarboxylic dianhydride/graphene oxide aerogel composite material according to claim 6, wherein in step (1), the calcination is carried out at 400 to 700 0 C for 3 to 6 hours under the protection of argon, the rate of temperature rise during calcination is 2 to 15 0 C per minute; in step (2), the mass ratio of perylenetetracarboxylic dianhydride, carbon nitride nanosheets and imidazole is 1:30:120; the reaction is carried out at 130 to 160 0 C for 4 to 7 hours; in step (3), the mass ratio of said nitride modified with perylenetetracarboxylic dianhydride and said graphene oxide is 3:1; taking ultrasonic treatment after dispersing in deionized water, the reaction is carried out at 160 to 200 0 C for 5 to 8 hours.
Carbon nitride modified with perylenetetracarboxylic dianhydride/graphene oxide aerogel composite material prepared by the preparation method of carbon nitride modified with perylenetetracarboxylic dianhydride/graphene oxide aerogel composite material according to claim 6.
Embodiments described in the patent, grouped by the materials and process steps they use.
2 materials1 process step
10 g of dicyandiamide placed in a porcelain crucible, calcined at 600 °C for 5 hours at 10 °C/min under argon protection to obtain yellow carbon nitride nanosheets, then ground into powder. SEM and TEM images confirmed thin sheet structure.
3 materials1 process step
0.05 g PTCDA, 1.0 g carbon nitride, and 4.0 g imidazole added to a round-bottomed flask; reaction at 150 °C for 6 hours under nitrogen atmosphere using imidazole as solvent. After cooling, product transferred to K₂CO₃ solution (150 mL), refluxed 2 hours, centrifuged, washed with HCl, water and ethanol to neutral, vacuum dried 5 hours. TEM confirmed thin sheet-like structure.
3 materials1 process step
90 mg of PTCDA-modified carbon nitride and 30 mg graphene oxide dispersed in 20 mL water, sonicated 2 hours. Transferred to Teflon-lined stainless autoclave, reacted at 190 °C for 6 hours. Cooled to room temperature, columnar hydrogel washed three times with deionized water, freeze-dried in oven for 2 days to obtain columnar aerogel. SEM and TEM images showed macroporous structure and well-compounded carbon nitride/graphene.
1 material
50 mg of PTCDA-modified carbon nitride/graphene oxide aerogel used in a batch reactor (2.2 L volume) with one quartz glass for photocatalytic degradation of nitric oxide.
Materials described outside the worked examples.
imidazole
C₃H₄N₂
Measurements and analyses referenced in the patent, with their drawing references.
SEM image (Figure 1) of carbon nitride showing thin sheet structure
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
Duration | 3–6 hours | — |
Duration |
Related documents with shared materials, methods, properties, or citations.
TEM image (Figure 2) of carbon nitride showing thin sheet structure
TEM image (Figure 3) of graphitic carbon nitride modified with PTCDA showing thin sheet-like structure
SEM image (Figure 4) of PTCDA-modified carbon nitride/graphene oxide aerogel showing macroporous structure and well-compounded carbon nitride and graphene
TEM image (Figure 5) of PTCDA-modified carbon nitride/graphene oxide aerogel showing macroporous structure and well-compounded carbon nitride and graphene
| 4–7 hours |
| — |
Duration | 5–8 hours | — |
Temperature | 2–15 °C | — |
Temperature | 160–200 °C | — |
TEM image (Figure 2) of carbon nitride showing thin sheet structure
TEM image (Figure 3) of graphitic carbon nitride modified with PTCDA showing thin sheet-like structure
SEM image (Figure 4) of PTCDA-modified carbon nitride/graphene oxide aerogel showing macroporous structure and well-compounded carbon nitride and graphene
TEM image (Figure 5) of PTCDA-modified carbon nitride/graphene oxide aerogel showing macroporous structure and well-compounded carbon nitride and graphene
| 4–7 hours |
| — |
Duration | 5–8 hours | — |
Temperature | 2–15 °C | — |
Temperature | 160–200 °C | — |
TEM image (Figure 2) of carbon nitride showing thin sheet structure
TEM image (Figure 3) of graphitic carbon nitride modified with PTCDA showing thin sheet-like structure
SEM image (Figure 4) of PTCDA-modified carbon nitride/graphene oxide aerogel showing macroporous structure and well-compounded carbon nitride and graphene
TEM image (Figure 5) of PTCDA-modified carbon nitride/graphene oxide aerogel showing macroporous structure and well-compounded carbon nitride and graphene
| 4–7 hours |
| — |
Duration | 5–8 hours | — |
Temperature | 2–15 °C | — |
Temperature | 160–200 °C | — |
TEM image (Figure 2) of carbon nitride showing thin sheet structure
TEM image (Figure 3) of graphitic carbon nitride modified with PTCDA showing thin sheet-like structure
SEM image (Figure 4) of PTCDA-modified carbon nitride/graphene oxide aerogel showing macroporous structure and well-compounded carbon nitride and graphene
TEM image (Figure 5) of PTCDA-modified carbon nitride/graphene oxide aerogel showing macroporous structure and well-compounded carbon nitride and graphene
| 4–7 hours |
| — |
Duration | 5–8 hours | — |
Temperature | 2–15 °C | — |
Temperature | 160–200 °C | — |