期刊
JOURNAL OF SOLID STATE CHEMISTRY
卷 298, 期 -, 页码 -出版社
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.jssc.2021.122103
关键词
Semiconductor photocatalyst; Fabrication method; Interfacial modification; Hydrogen generation; Photocatalytic mechanism
资金
- National Natural Science Foundation of China [21771125, 21301118, 21305092]
The study on THPP/NiO nanosheet photocatalysts revealed that the special coordination interaction between THPP and NiO significantly influences the photocatalytic performance, and controlling the interaction between the two can achieve a photocatalyst with high and stable photocatalytic activity. This provides a new concept for fabricating highly efficient photocatalysts for hydrogen production.
Hexagonal nickel oxide nanosheet (NiO) was surface modified with various amounts of tetrahydroxylphenyl porphyrin (THPP) to form a series of THPP/NiO nanosheet photocatalysts. The interacted mechanism between THPP and NiO was studied in detail by ultraviolet spectroscopy and fluorescence spectroscopy. Furthermore, the photocatalytic activity for hydrogen production and electron transfer mechanism over the THPP/NiO nanosheet nanocomposite were investigated by fluorescence spectra, UV-vis spectra and electrochemical measurements. The results showed that the special coordination interaction between THPP and NiO had an important influence on the photocatalytic performance of the nanocomposite, and a photocatalyst with high and stable photocatalytic activity can be achieved by controlling the interaction between porphyrin and NiO-like metal oxides. It will provide a new idea for fabricating highly efficient photocatalysts for hydrogen production.
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