{"title":"Carbon nitride photoelectrode prepared via a combined strategy of electrophoresis and vapor deposition","authors":"Zhiqiang Xie, Yuqing Wang, Wei Peng, Zhehan Yi, Tao Zhang, Wenping Si, Feng Hou","doi":"10.1680/jsuin.22.00048","DOIUrl":null,"url":null,"abstract":"Photoelectrochemical water splitting converts solar energy into clean hydrogen fuel. In this system, the preparation of high-quality photoanode is essential for achieving efficient solar hydrolysis. Polymeric carbon nitride has emerged as a promising photocatalyst for solar water splitting due to its visible light absorption, suitable band edge positions and good chemical stability. However, considerable difficulties have been encountered for the preparation of robust and well-bonded carbon nitride films on conductive substrates. Herein, a combined strategy of electrophoresis and vapor deposition results in robust and high performing carbon nitride film photoelectrodes with good bonding on substrates, suitable thickness for light absorption, and enhanced charge separation and transfer abilities. The unique structure of the photoanode thus facilitates the oxidation of water and leads to an optimal photocurrent density of approximately 120 μA cm-2 at 1.23 VRHE. This work provides new insights for the preparation of polymeric carbon nitride film photoelectrodes, promoting the developments of photoelectric and photoelectrochemical applications based on carbon nitride.","PeriodicalId":22032,"journal":{"name":"Surface Innovations","volume":null,"pages":null},"PeriodicalIF":2.7000,"publicationDate":"2022-04-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Surface Innovations","FirstCategoryId":"88","ListUrlMain":"https://doi.org/10.1680/jsuin.22.00048","RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"CHEMISTRY, PHYSICAL","Score":null,"Total":0}
引用次数: 0
Abstract
Photoelectrochemical water splitting converts solar energy into clean hydrogen fuel. In this system, the preparation of high-quality photoanode is essential for achieving efficient solar hydrolysis. Polymeric carbon nitride has emerged as a promising photocatalyst for solar water splitting due to its visible light absorption, suitable band edge positions and good chemical stability. However, considerable difficulties have been encountered for the preparation of robust and well-bonded carbon nitride films on conductive substrates. Herein, a combined strategy of electrophoresis and vapor deposition results in robust and high performing carbon nitride film photoelectrodes with good bonding on substrates, suitable thickness for light absorption, and enhanced charge separation and transfer abilities. The unique structure of the photoanode thus facilitates the oxidation of water and leads to an optimal photocurrent density of approximately 120 μA cm-2 at 1.23 VRHE. This work provides new insights for the preparation of polymeric carbon nitride film photoelectrodes, promoting the developments of photoelectric and photoelectrochemical applications based on carbon nitride.
Surface InnovationsCHEMISTRY, PHYSICALMATERIALS SCIENCE, COAT-MATERIALS SCIENCE, COATINGS & FILMS
CiteScore
5.80
自引率
22.90%
发文量
66
期刊介绍:
The material innovations on surfaces, combined with understanding and manipulation of physics and chemistry of functional surfaces and coatings, have exploded in the past decade at an incredibly rapid pace.
Superhydrophobicity, superhydrophlicity, self-cleaning, self-healing, anti-fouling, anti-bacterial, etc., have become important fundamental topics of surface science research community driven by curiosity of physics, chemistry, and biology of interaction phenomenon at surfaces and their enormous potential in practical applications. Materials having controlled-functionality surfaces and coatings are important to the manufacturing of new products for environmental control, liquid manipulation, nanotechnological advances, biomedical engineering, pharmacy, biotechnology, and many others, and are part of the most promising technological innovations of the twenty-first century.