期刊
JOURNAL OF PHYSICAL CHEMISTRY C
卷 119, 期 23, 页码 13032-13040出版社
AMER CHEMICAL SOC
DOI: 10.1021/acs.jpcc.5b02132
关键词
-
资金
- National Natural Science Foundation of China [21271165, 21101006]
One-dimensional (1D) Bi12O17Br2/Bi24O31Br10 type II heterostructures were synthesized by calcining BiOBr/Bi(OHC2O4)center dot 2H(2)O heterostructures in air at 400 degrees C. The photocatalytic activity of the as-prepared products was evaluated by the degradation of phenol and Rhodamin B (RhB) under visible light irradiation. The Bi12O17Br2/Bi24O31Br10 hierarchical heterostructures show enhanced visible light catalytic activity with the increase of the loaded/Bi24O31Br10 content, which results from the efficient separation of photogenerated charge carriers due to the staggered band potentials of the two materials. Radical scavenger experiments confirm that photogenerated holes (h(+)) are the main active species for oxidizing RhB molecules during the photocatalytic processes.
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