期刊
CHINESE JOURNAL OF CHEMICAL ENGINEERING
卷 28, 期 10, 页码 2677-2688出版社
CHEMICAL INDUSTRY PRESS CO LTD
DOI: 10.1016/j.cjche.2020.06.037
关键词
Graphitic carbon nitride; P-doping; Carbon defect; Pt co-catalyst; Hydrogen evolution
资金
- National Natural Science Foundation of China [21777034, 21606052]
- Natural Science Foundation of Guangdong Province [2020A1515010344]
- Science and Technology Innovation Project of Guangdong Province College Students [201811656019]
- Guangdong Province Universities and Colleges Pearl River Scholar Funded Scheme (2019)
- Guangdong Basic and Applied Basic Research Foundation [2019A1515011249]
- Key Research Project of Natural Science of Guangdong Provincial Department of Education [2019KZDXM010]
- program for Innovative Research Team of Guangdong University of Petrochemical Technology
Hydrogen production by photolysis of water by sunlight is an environmentally-friendly preparation technology for renewable energy. Graphitic carbon nitride (g-C3N4), despite with obvious catalytic effect, is still unsatisfactory for hydrogen production. In this work, phosphorus element is incorporated to tune g-C3N4's property through calcinating the mixture of g-C3N4 and NaH2PO2, sacrificial agent and co-catalyst also been supplied to help efficient photocatalytic hydrogen production. Phosphorus (P) doped g-C3N4 samples (PCN-S) were prepared, and their catalytic properties were studied. X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), scanning electron microscopy (SEM) and ultraviolet diffuse reflection (UV-DRS) were used to study their structures and morphologies. The results show that the reaction rate of PCN-S is 318 mu mol.h(-1).g(-1) which is 2.98 times as high as pure carbon nitride nanosheets (CN) can do. Our study paves a new avenue, which is simple, environment-friendly and sustainable, to synthesize highly efficient P doping g-C3N4 nanosheets for solar energy conversion. (C) 2020 The Chemical Industry and Engineering Society of China, and Chemical Industry Press Co., Ltd. All rights reserved.
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