Polymeric Carbon Nitride Tubular Sponges with Edge Functionalized Phosphonic Groups for Photocatalysis

A unique polymeric carbon nitride (CN) tubular sponge with an edge-functionalized phosphonic group (CNPC) has been obtained using a simple template-free method. Using phenylphosphonic acid as an additive promotes the formation of a cyanuric acid–melamine supramolecular precursor. Meanwhile, phosphon...

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Bibliographic Details
Published in:Journal of inorganic and organometallic polymers and materials 2024, Vol.34 (10), p.4632-4641
Main Authors: Xing, Weinan, Liu, Chaoke, Gao, Changyao, Jin, Xinjie, Feng, Fukang, Zhang, Xiaoyu, Wu, Guangyu
Format: Article
Language:English
Subjects:
Carbon
Carbon nitride
Catalytic converters
Chemistry
Chemistry and Materials Science
Conduction bands
Contaminants
Cyanuric acid
Energy conversion
Hydrogen evolution
Inorganic Chemistry
Melamine
Organic Chemistry
Photocatalysis
Polymer Sciences
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Summary:A unique polymeric carbon nitride (CN) tubular sponge with an edge-functionalized phosphonic group (CNPC) has been obtained using a simple template-free method. Using phenylphosphonic acid as an additive promotes the formation of a cyanuric acid–melamine supramolecular precursor. Meanwhile, phosphonic groups are grafted to heptazine units. Experimental and characterization investigations reveal that the functional phosphonic group and tubular sponge morphology endow CNPCx with additional reaction active sites, negative conduction band levels, and highly efficient charge separation. The obtained CNPCx photocatalysts exhibit excellent catalytic performance with regard to H 2 evolution and contaminant degradation. This study provides a new design based on the synergetic regulating effect of macro and microstructures of CN with high performance in energy conversion and environmental purification.
ISSN:1574-1443
1574-1451
DOI:10.1007/s10904-024-03117-0