Journal
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
Volume 531, Issue -, Pages 213-220Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.colsurfa.2017.08.004
Keywords
BiVO4; Carbon fiber; Hydrothermal; Photocatalysis; Methylene blue
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Funding
- National Basic Research Program (973 Program) of China [2013CB632600]
- UCAS Scholarship for International students, China
- National Natural Science Foundation of China [21406233]
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Recyclable photocatalytic degradation of methylene blue (MB) in aqueous solution was investigated using monoclinic bismuth vanadate (m-BiVO4) coated on activated carbon fibers. m-BiVO4 hollow microspheres were in situ formed @ carbon fibers by hydrothermal process and a novel BiVO4 @ carbon fiber composite was obtained. The obtained composite has a surface area in the range from 3.1 to 4.6 m(2)/g. The photocatalytic activity of the obtained material was checked by the decomposition of MB. It was found that the immobilization of m-BiVO4 hollow microspheres photocatalyst on the surface of carbon fibers did not reduce the visible light absorption capability with comparison to that of pure m-BiVO4. Moreover, the composite showed an enhanced reusability. This higher activity and reusability can be attributed due to the higher amount immobilization of photocatalyst @ carbon fiber.
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