Oxidative degradation of dye pollutants over a broad pH range using hydrogen peroxide catalyzed by FePz(dtnCl(2))(4)
文献类型：期刊论文
| 作者 | Su, Rong1,2; Sun, Jie1,2; Sun, Yuping1,2; Deng, Kejian1,2; Cha, Dongmei1,2; Wang, Duoyuan1,2,3 |
| 刊名 | CHEMOSPHERE
 |
| 出版日期 | 2009-11-01 |
| 卷号 | 77期号:8页码:1146-1151 |
| 关键词 | Metalloporphyrazine Visible Light Ph Effect Rhodamine b Reactive Oxidizing Species Esr |
| ISSN号 | 0045-6535 |
| DOI | 10.1016/j.chemosphere.2009.08.005 |
| 英文摘要 | The oxidative degradation of rhodamine B (RhB) with hydrogen peroxide activated by iron(II) tetra-(5,6-dichloro-1,4-dithiin)-porphyrazine (abbreviated as FePz(dtnCl(2))(4)) was studied by means of UV-Vis spectra, GC-MS and TOC analysis, in which the effects of pH, light, concentration of hydrogen peroxide and the degraded products of the RhB were investigated. The results indicate that FePz(dtnCl(2))(4) was found to exhibit high catalytic activity to activate hydrogen peroxide for the oxidative degradation of RhB and good stability over a broad pH range under visible light irradiation (lambda > 420 nm). The conversions of RhB in 80 min were 99%, 85%, 52% and the TOC removals in 240 min were 91%, 64%, 18% when the initial solutions pHs were 2, 7, 11, respectively. HO center dot radicals were testified to generate in the biomimetic catalytic system both at pH 2 and 7 by means of spin-trapping electron spin resonance. However, control experiment with scavenging of HO center dot radicals displayed the quite different results at pH 2 and 7. Based on experiment results together with theoretic deduction, a mechanism for RhB oxidation involving two kinds of reactive oxidizing species was proposed, the homolytic cleavage generating the HO. radicals and the heterolytic cleavage generating the Pz(center dot+)Fe(IV)=O radicals. (C) 2009 Elsevier Ltd. All rights reserved. |
| 语种 | 英语 |
| WOS记录号 | WOS:000271684800018 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/68297]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Sun, Jie |
| 作者单位 | 1.S Cent Univ Nationalities, Key Lab Catalysis & Mat Sci, State Ethn Affairs Commiss, Wuhan 430073, Peoples R China 2.S Cent Univ Nationalities, Minist Educ, Wuhan 430073, Peoples R China 3.Chinese Acad Sci, Key Lab Photochem, Inst Chem, Beijing 100080, Peoples R China |
| 推荐引用方式 GB/T 7714 | Su, Rong,Sun, Jie,Sun, Yuping,et al. Oxidative degradation of dye pollutants over a broad pH range using hydrogen peroxide catalyzed by FePz(dtnCl(2))(4)[J]. CHEMOSPHERE,2009,77(8):1146-1151. |
| APA | Su, Rong,Sun, Jie,Sun, Yuping,Deng, Kejian,Cha, Dongmei,&Wang, Duoyuan.(2009).Oxidative degradation of dye pollutants over a broad pH range using hydrogen peroxide catalyzed by FePz(dtnCl(2))(4).CHEMOSPHERE,77(8),1146-1151. |
| MLA | Su, Rong,et al."Oxidative degradation of dye pollutants over a broad pH range using hydrogen peroxide catalyzed by FePz(dtnCl(2))(4)".CHEMOSPHERE 77.8(2009):1146-1151. |
入库方式： OAI收割
来源：化学研究所
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