Journal
MATERIALS RESEARCH EXPRESS
Volume 4, Issue 11, Pages -Publisher
IOP PUBLISHING LTD
DOI: 10.1088/2053-1591/aa9862
Keywords
photocatalytic; SnS2/Ni2S3 nanocomposite; heterostructures; nickel foam; photodegradation
Categories
Funding
- Flagship Major Development of Jiangsu Higher Education Institutions [PPZY2015B113]
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Heterojunction system, as a considerable method, has been proved a good solution to improve photocatalysis. Herein, a novel SnS2/Ni3S2 heterojunction deposited on Ni foam (NF) (SnS2/Ni3S2@NF) has been successfully synthesized by hydrothermal method. The photocatalytic activity has been improved due to the special heterostructure. Scanning electron microscopy, x-ray diffraction, Raman, UV-vis diffuse reflectance spectroscopy and photocatalytic test were employed to prove it. The SEM pictures showed that the surface of NF deposited a certain amount of SnS2/Ni3S2. And SnS2/Ni3S2@NF heterojunction photocatalyst exhibits an excellent catalytic ability in the visible light region. Compared to pristine SnS2, the as-prepared SnS2/Ni3S2@NF heterojunction showed increased photocatalytic activity toward Cr(VI) photoreduction under visible light irradiation. This work will be useful for the design of other photocatalyst for application in Cr(VI) removal.
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