期刊
OPTIK
卷 161, 期 -, 页码 284-292出版社
ELSEVIER GMBH
DOI: 10.1016/j.ijleo.2018.02.052
关键词
CdS flakes; X-ray diffraction; FESEM; Photocatalytic activity
类别
资金
- Department of Science and technology, New Delhi [IFA-13 PH-61]
A mixed phase cadmium sulfide (CdS) thin films were prepared through chemical synthesis for studying the visible-light-driven photocatalytic activity for wastewater treatment. The wastewater that contains a considerable amount of refractory organic substances such as congo red (CR), methylene blue (MB) and indigo carmine (IC) dye solutions were degraded under visible-light irradiation using the CdS thin films. Structural studies of the CdS photo catalyst indicated good crystallinity, showing mixed phases of the hexagonal and cubic structure. Morphological studies suggested a flake-like structure that is uniformly distributed over the entire surface of the substrate. Such morphology induces porosity, which helps for intercalating the organic dyes. The optical band-gap energy of film sample was found to be 2.35 eV, which helped for high photocatalytic activity in the degradation of the non-biodegradable CR dye under visible-light irradiations as compared to IC and MB dyes. (C) 2018 Elsevier GmbH. All rights reserved.
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