Activation CuFe2O4 by Hydroxylamine for Oxidation of Antibiotic Sulfamethoxazole

被引：174

作者：

Yan, Jianfei ^{[1
]}

Peng, Jiali ^{[1
]}

Lai, Leiduo ^{[1
]}

Ji, Fangzhou ^{[1
]}

Zhang, Yunhong ^{[5
]}

Lai, Bo ^{[1
,2
,3
,4
]}

Chen, Qixuan ^{[1
]}

Yao, Gang ^{[2
,4
]}

Chen, Xi ^{[6
]}

Song, Liping ^{[6
]}

机构：

[1] Sichuan Univ, Coll Architecture & Environm, Dept Environm Sci & Engn, Chengdu 610065, Sichuan, Peoples R China

[2] Sichuan Univ, Sinogerman Ctr Water & Hlth Res, Chengdu 610065, Sichuan, Peoples R China

[3] Sichuan Univ, Natl Engn Res Ctr Flue Gas Desulfurizat, Chengdu 610065, Sichuan, Peoples R China

[4] Rhein Westfal TH Aachen, Inst Environm Engn, D-52056 Aachen, Germany

[5] Minist Agr, Biogas Inst, Chengdu 610041, Sichuan, Peoples R China

[6] SCIEX Analyt Instrument Trading Co, Shanghai 200335, Peoples R China

来源：

ENVIRONMENTAL SCIENCE & TECHNOLOGY | 2018年 / 52卷 / 24期

基金：

中国国家自然科学基金;

关键词：

HYDROGEN-PEROXIDE; P-NITROPHENOL; EFFICIENT DEGRADATION; CATALYTIC OZONATION; ENHANCED REACTIVITY; AQUEOUS-SOLUTION; PEROXYMONOSULFATE; PERSULFATE; MECHANISM; NANOPARTICLES;

D O I：

10.1021/acs.est.8b03340

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

A new potential oxidation process is provided by CuFe2O4/hydroxylamine (HA) system for degradation of antibiotics in water. The CuFe2O4/HA system can generate reactive oxygen species (ROS) for the degradation of sulfamethoxazole (SMX). The addition of radical scavengers, including benzoquinone (BQ) and catalase (CAT), inhibited the oxidation of SMX in CuFe2O4/HA system. Electron transfer in the CuFe2O4/HA system played a key function for the generation of ROS and the degradation of SMX. The main ROS, was the superoxide radical (O2(center dot-) mainly generated from adsorbed oxygen (O-2(A)), which came from the oxidation of the lattice oxygen (O-(L)(2-)) in CuFe2O4. The CuFe2O4/HA system was effectively applicable for a broad pH range (approximately 5-10). In addition, the activation mechanism for CuFe2O4/HA system was studied with the target contaminant SMX. Finally, the degradation pathways of SMX were proposed under the optimal conditions in CuFe2O4/HA system.

引用

页码：14302 / 14310

页数：9

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