Journal
MATERIALS RESEARCH BULLETIN
Volume 104, Issue -, Pages 124-133Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.materresbull.2018.03.041
Keywords
Bi(2)Wo(6)/ZnFe(2)o(4) heterostructures; Nanofibers; Visible-light photocatalysis; Magnetically separable property
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Funding
- National Natural Science Foundation of China [51572045, 51272041, 61201107, 11604044, 91233204]
- National Basic Research Program of China (973 Program) [2012CB933703]
- 111 Project [B13013]
- Natural Science Foundation of Jilin Province of China [20160101313JC]
- Fundamental Research Funds for the Central Universities [2412017FZ009, 2412017QD007, 2412016KJ017]
- the China Postdoctoral Science Foundation [2017M610188]
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Bi(2)Wo(6) nanosheets were uniformly grown on electrospun ZnFe(2)o(4) nanofibers via a solvothermal technique. The loading amounts of Bi(2)Wo(6) in the Bi(2)Wo(6)/ZnFe(2)o(4) heterostructures nanofibers could be controlled by adjusting the precursor concentration in solvothermal process. Under visible-light irradiation, the degradation rate constant (rhodamine B) of the Bi(2)Wo(6)/ZnFe(2)o(4) heterostructures was 11.6 times than that of pure ZnFe(2)o(4) nanofibers and 5.8 times than that of pure Bi(2)Wo(6) nanosheets, mainly owing to the effective separation of the photogenerated electron-hole pairs in the Bi(2)Wo(6)/ZnFe(2)o(4) heterostructures. Notably, the Bi(2)Wo(6)/ZnFe(2)o(4) heterostructures nanofibers could be easily separated from the solution under an external magnetic field by employing the ferromagnetic behaviors of ZnFe(2)o(4). After several cycles, the photocatalytic activity of the Bi(2)Wo(6)/ZnFe(2)o(4) heterostructures nanofibers did not decrease significantly suggesting that the Bi(2)Wo(6)/ZnFe(2)o(4) heterostructures possess stable characteristics. This kind of Bi(2)Wo(6)/ZnFe(2)o(4) heterostructures nanofibers with high visible-light photocatalytic activity, excellent stability and excellent recyclability could be significance in environmental application.
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