Degradation of Ciprofloxacin by CuNiFe LDHs/ BiO2-x Heterojunction-activated Peroxymonosulfate Under Visible Light Irradiation

被引：0
|
作者：
Dang P. [1 ,2 ]
Zhao Y.-J. [1 ]
Xie H.-D. [1 ]
Wang K.-K. [1 ]
Zhao R.-X. [3 ]
机构：
[1] School of Chemistry and Chemical Engineering, Xi'an University of Architecture and Technology, Xi'an
[2] Power Operation Cent, Chinese Flight Test Establishment, Xi'an
[3] Shandong Drug and Food Vocational College, Weihai
来源：
Huanjing Kexue/Environmental Science | 2023年 / 44卷 / 10期
关键词：
advanced oxidation process; ciprofloxacin(CIP); CuNiFe LDHs/ BiO[!sub]2-x[!/sub; heterojunction; peroxymonosulfate; photocatalysis;
D O I：
10.13227/j.hjkx.202210135
中图分类号：
学科分类号：
摘要：
Herein, a CuNiFe LDHs/ BiO2-x composite photocatalyst was successfully synthesized using a hydrothermal method and applied to activate peroxymonosulfate to degrade ciprofloxacin under visible light irradiation. Owing to the synergistic effect of photocatalysis and PMS activation, a high removal efficiency of CIP up to 88. 3% was achieved. The prepared photocatalysts were characterized using XRD, FT-IR, SEM, XPS, UV-Vis DRS, and other methods. The optimal loading amount of CuNiFe LDHs was determined, and the effects of PMS dosage, initial pH value, and inorganic anions (Cl - , CO23- , and NO3- ) on the degradation were investigated. Electron paramagnetic resonance and free radical trapping experiments demonstrated that.OH and h + were the main active species for degrading CIP, and the possible degradation mechanism of the system was proposed. © 2023 Science Press. All rights reserved.
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页码：5587 / 5598
页数：11
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