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Morphology-Controlled Synthesis of ZnxCd 1-xS Solid Solutions : An Efficient Solar Light Active Photocatalyst for the Degradation of 2 , 4 , 6-Trichlorophenol
| Content Provider | Semantic Scholar |
|---|---|
| Author | Selvaraj, Rengaraj Qi, Kezhen Pandian, Sathish Babu Soundra Meetani, Mohammed A. Wahaibi, Bushra Al Lawati, Haider Al Kindy, Salma M. Z. Al Kim, Younghun Sillanpää, Mika |
| Copyright Year | 2016 |
| Abstract | ZnxCd1−xS solid solutions with controlled morphology have been successfully synthesized by a facile solution-phase method. The prepared samples were characterized by X-ray powder diffraction (XRD), UV-vis diffuse reflectance spectra, X-ray photoelectron spectroscopy (XPS), scanning electron microscopy (SEM) and transmission electron microscopy (TEM). The photocatalytic activity of ZnxCd1−xS was evaluated in the 2,4,6-trichlorophenol (TCP) degradation and mineralization in aqueous solution under direct solar light illumination. The experiment demonstrated that TCP was effectively degraded by more than 95% with 120 min. The results show that ZnS with Cd doping (ZnxCd1−xS) exhibits the much stronger visible light adsorption than that of pure ZnS, the light adsorption increasing as the Cd doping amount. These results indicate that Cd doping into a ZnS crystal lattice can result in the shift of the valence band of ZnS to a positive direction. It may lead to its higher oxidative ability than pure ZnS, which is important for organic pollutant degradation under solar light irradiation. Furthermore, the photocatalytic activity studies reveal that the prepared ZnxCd1−xS nanostructures exhibit an excellent photocatalytic performance, degrading rapidly the aqueous 2,4,6-trichlorophenol solution under solar light irradiation. These results suggest that ZnxCd1−xS nanostructure will be a promising candidate of photocatalyst working in solar light range. How to cite this paper: Selvaraj, R., Qi, K.Z., Pandian, S.B.S., Meetani, M.A., Al Wahaibi, B., Al Lawati, H., Al Kindy, S.M.Z., Kim, Y. and Sillanpää, M. (2016) Morphology-Controlled Synthesis of ZnxCd1-xS Solid Solutions: An Efficient Solar Light Active Photocatalyst for the Degradation of 2,4,6Trichlorophenol. Journal of Environmental Protection, 7, 1605-1617. http://dx.doi.org/10.4236/jep.2016.711132 Received: September 28, 2016 Accepted: October 25, 2016 Published: October 28, 2016 Copyright © 2016 by authors and Scientific Research Publishing Inc. This work is licensed under the Creative Commons Attribution International License (CC BY 4.0). http://creativecommons.org/licenses/by/4.0/ Open Access |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | http://file.scirp.org/pdf/JEP_2016102822393420.pdf |
| Language | English |
| Access Restriction | Open |
| Subject Keyword | 2,4,6-trichlorophenol Clomiphene Compact discs Copyright Crystal structure Diagnostic radiologic examination Diameter (qualifier value) Disease Response Domain Doping (semiconductor) Doping in Sports Elegant degradation Exhibits as Topic Greater Than Guilty Gear Xrd Light, Visible Mathematical morphology Maxima and minima Nanostructured Materials Photoelectric effect Physiologic calcification Powder Diffraction Scanning Electron Microscopy Solutions Transmission Electron Microscopy UV-VIS Spectrum X-Ray Photoelectron Spectroscopy pollutant |
| Content Type | Text |
| Resource Type | Article |
