期刊
JOURNAL OF MATERIALS CHEMISTRY A
卷 3, 期 14, 页码 7304-7313出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c5ta00560d
关键词
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资金
- National Natural Science Foundation of China [21171035, 51472049, 51302035]
- Chinese Ministry of Education [313015]
- PhD Programs Foundation of the Ministry of Education of China [20110075110008, 20130075120001]
- National 863 Program of China [2013AA031903]
- Science and Technology Commission of Shanghai Municipality [13ZR1451200]
- Fundamental Research Funds for the Central Universities
- Program Innovative Research Team in University [IRT1221]
- Shanghai Leading Academic Discipline Project [B603]
- Program of Introducing Talents of Discipline to Universities [111-2-04]
- Shanghai Municipal Education Commission [14ZZ160]
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Donghua University [LK1209]
CuS nanoparticle/ZnO nanorod heterostructure arrays grown on carbon fibers (CuS/ZnO/CFs) were prepared successfully by a simple combination of a hydrothermal (HT) process and successive ionic layer adsorption and reaction (SILAR). The heterostructures of CuS/ZnO/CFs showed improved photocatalytic activity in the degradation of methylene blue (MB). Under visible light irradiation, the CuS/ZnO/CF heterostructures exhibited remarkable visible light photocatalytic activity, which was 7.1 and 8.0 times higher than those of ZnO/CFs and ZnO, respectively. Under simulated solar light irradiation, the photocatalytic activity of the CuS/ZnO/CF heterostructures was 1.4 and 2.2 times higher than those of ZnO/CFs and ZnO, respectively. The enhanced photocatalytic activity could be ascribed to the effective electron-hole separation and improved visible light utilization from the cooperative effect of the type II CuS/ZnO heterostructures and conductive CFs, as well as the efficient light harvesting and high surface area of the heterostructure arrays. Moreover, the CuS/ZnO/CF heterostructures can be easily separated and recycled with little loss in the photocatalytic activity due to their unique structural features.
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