期刊
MATERIALS RESEARCH BULLETIN
卷 48, 期 9, 页码 3485-3491出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.materresbull.2013.05.040
关键词
Nitrides; Polymers; Semiconductors; Catalytic properties; Optical properties
资金
- National Natural Science Foundation of China [20803038, 21003146, 21201174]
- Basic Research Project of the Qingdao Science and Technology Program [12-1-4-9-(6)-jch]
- Chinese Academy of Sciences [KSCX2-EW-J-10]
Phosphorus-doped carbon nitride materials were prepared by a one-pot green synthetic approach using dicyandiamide monomer and a phosphorus containing ionic liquid as precursors. The as-prepared materials were subjected to several characterizations and investigated as metal-free photocatalysts for the degradation of organic pollutants (dyes like Rhodamine B, Methyl orange) in aqueous solution under visible light. Results revealed that phosphorus-doped carbon nitride have a higher photocatalytic activity for decomposing Rhodamine B and Methyl orange in aqueous solution than undoped g-C3N4, which was attributed to the favorable textural, optical and electronic properties caused by doping with phosphorus heteroatoms into carbon nitride host. A facile postannealing treatment further improved the activity of the photocatalytic system, due to the higher surface area and smaller structural size in the postcalcined catalysts. The phosphorus-doped carbon nitride showed high visible-light photocatalytic activity, making them promising materials for a wide range of potential applications in photochemistry. (C) 2013 Elsevier Ltd. All rights reserved.
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