Journal
CHINESE JOURNAL OF CATALYSIS
Volume 38, Issue 10, Pages 1726-1735Publisher
SCIENCE PRESS
DOI: 10.1016/S1872-2067(17)62902-4
Keywords
Visible light; Photo-Fenton; Plasmonic catalyst; Ag/AgCl/Fe-S; Sepiolite
Funding
- National Natural Science Foundation of China [41573118]
- Research Foundation of Education Bureau of Hunan Province, China [14B177]
- Special Project of Xiangtan University
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A novel plasmonic photo-Fenton catalyst of Ag/AgCl/Fe-S was synthesized by ion exchange and photoreduction methods. The obtained catalyst was characterized by X-ray diffraction, X-ray photoelectron spectroscopy, scanning electron microscope imaging, and Brunauer-Emmett-Teller measurements. Moreover, the photocatalytic activity of Ag/AgCl/Fe-S was investigated for its degradation activity towards bisphenol A (BPA) as target pollutant under visible light irradiation. The effects of H2O2 concentration, pH value, illumination intensity, and catalyst dosage on BPA degradation were examined. Our results indicated that the Ag/AgCl material was successfully loaded onto Fe-sepiolite and showed a high photocatalytic activity under illumination by visible light. Furthermore, active species capture experiments were performed to explore the photocatalytic mechanism of the Ag/AgCl/Fe-S in this heterogeneous photo-Fenton process, where the major active species included hydroxyl radicals (center dot OH) and holes (h(+)).
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