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[APPLIED CATALYSIS B-ENVIRONMENTAL],卷: 253 页: 278-285
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作者:Kong, LS (Kong, Lingshuai); Fang, GD (Fang, Guodong) ; Chen, YF (Chen, Yufeng); Xie, M (Xie, Meng) ; Zhu, F (Zhu, Feng); Ma, L (Ma, Long) ; Zhou, DM (Zhou, Dongmei) ; Zhan, JH (Zhan, Jinhua)

 

题目:Efficient activation of persulfate decomposition by Cu2FeSnS4 nanomaterial for bisphenol A degradation: Kinetics, performance and mechanism studies

 

刊物:APPLIED CATALYSIS B-ENVIRONMENTAL,卷: 253  页: 278-285

DOI: 10.1016/j.apcatb.2019.04.069

出版年: SEP 15 2019

 

摘要:

In this study, a flower-like Cu2FeSnS4 (CFTS) nanomaterial was applied to the activation of persulfate (PS) for the degradation of bisphenol A (BPA) in model industrial wastewater. The efficiency of PS decomposition by CFTS, and the mechanism of contaminant degradation by SO4 center dot- were investigated. The results revealed that CFTS catalyzes PS decomposition more efficiently than the monometallic Cu/Fe/Sn sulfides and exhibits activity over a wide pH range. Electron spin resonance spectroscopy, X-ray photoelectron spectroscopy, and free radical quenching experiments revealed a tandem synergistic effect between Cu, Fe, and Sn in their quaternary chalcogenide systems upon PS activation. The intrinsic electron transfer between Cu, Fe and Sn, especially the Fe (II)* species formed upon the complexation of Fe(II) by S on the surface of the CFTS, overcomes the inhibition of the M(n+1)+/Mn+ redox cycle. CFTS shows promise as a catalyst for wastewater treatment.









 

 

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