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题名: Cu-doped Bi2O3/Bi-0 composite as an efficient Fenton-like catalyst for degradation of 2-chlorophenol
作者: Zhang, Lili; Lyu, Lai; Nie, Yulun; Hu, Chun
刊名: SEPARATION AND PURIFICATION TECHNOLOGY
出版日期: 2016-01-08
卷号: 157, 期号:0, 页码:203-208
关键词: Cu-doped Bi2O3/Bi-0 ; Fenton-like ; (OH)-O-center dot radicals ; 2-Chlorophenol
DOI: 10.1016/j.seppur.2015.11.021
部门归属: 中国科学院饮用水科学与技术重点实验室
英文摘要: Cu-doped Bio(x) composites were prepared with and without citric acid. In the presence of citric acid, Bi-0 and Cu2+/Cu+ were confirmed to coexist in the composite (BiCu9/Bi-0) by X-ray diffraction and X-ray photoelectron spectroscopy. The catalyst showed high Fenton activity and stability for the degradation and mineralization of 2-chlorophenol in the pH range of 6-8. H2O2 was predominately converted into (OH)-O-center dot radicals in BiCu9/Bi-0 suspension, as assessed by the electron spin resonance technique. In the composite, Bi-0 inhibited the oxidation of H2O2 by CO+ into O-2 and (OH)-O-center dot by reducing Cu2+, enhancing the reaction of H2O2 with Cu+ to produce (OH)-O-center dot. Intermediate determination showed that 2-chlorophenol was decomposed mainly by (OH)-O-center dot radicals into hydroxylation products, subsequently decomposed into short-chain organic acids, and eventually decomposed into CO2 and H2O. (C) 2015 Elsevier B.V. All rights reserved.
收录类别: SCI
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内容类型: 期刊论文
URI标识: http://ir.rcees.ac.cn/handle/311016/36165
Appears in Collections:中国科学院饮用水科学与技术重点实验室_期刊论文

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Recommended Citation:
Zhang, Lili,Lyu, Lai,Nie, Yulun,et al. Cu-doped Bi2O3/Bi-0 composite as an efficient Fenton-like catalyst for degradation of 2-chlorophenol[J]. SEPARATION AND PURIFICATION TECHNOLOGY,2016,157(0):203-208.
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