Journal
CURRENT ORGANIC CHEMISTRY
Volume 24, Issue 6, Pages 673-693Publisher
BENTHAM SCIENCE PUBL LTD
DOI: 10.2174/1385272824666200309151648
Keywords
Photocatalytic activity; graphitic carbon nitride; metal oxide; photocatalyst; organic dyes; non-metal doping
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Funding
- National Natural Science Foundation of China [51403094]
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Industrial wastewater contains abundant organic dyes, antibiotics, pesticides, chemical fertilizers or heavy metal ions, which seriously deteriorate the ecological environment. Among the practical techniques for reducing water pollution, photocatalysis is a kind of sustainable solar energy conversion technique for removing organic contaminants. In this review, the advances in the preparation, modification, and doping of graphitic carbon nitride (g-C3N4), including non-metal doping, metal doping, dual- or tri-doping, are introduced firstly. Then, we systematically reviewed the recent progress of g-C3N4/metal oxide composite photocatalysts, including a g-C3N4/n-type metal oxide, such as TiO2, ZnO, SnO2, WO3, FexOy, CeO2, V2O5, MoO3, MnO2, Nb2O5, In2O3, and a g-C3N4/p-type metal oxide, such as Co3O4, Bi2O3, NiO and Cu2O. At last, we summarized the design principles for preparing heteroatom doped g-C3N4 and g-C3N4/metal oxide composites, and forecast the promising research directions. The main objective is to provide a guideline for designing high-performance heteroatom doped g-C3N4 and g-C3N4/metal oxide photocatalysts.
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