The application of chromium substituted magnetite as heterogeneous Fenton catalyst for the degradation of aqueous cationic and anionic dyes
文献类型：期刊论文
| 作者 | Liang, XL ; Zhong, YH ; He, HP ; Yuan, P ; Zhu, JX ; Zhu, SY ; Jiang, Z（姜政) |
| 刊名 | CHEMICAL ENGINEERING JOURNAL
 |
| 出版日期 | 2012 |
| 卷号 | 191 |
| ISSN号 | 1385-8947 |
| 英文摘要 | In this study, the heterogeneous Fenton degradation of cationic and anionic dyes catalyzed by a series of Cr-containing magnetites (Fe3-xCrxO4, x=0.00, 0.18, 0.33, 0.47 and 0.67) has been investigated under neutral pH conditions. Methylene blue (MB) and acid orange II (AOII) were chosen as models of cationic and anionic contaminants. Emphases were laid on the comparison of degradation characteristic between MB and AOII and the effect of Cr substitution on the degradation efficiency of both dyes. The octahedral occupancy of Cr3+ increased the BET surface area and superficial hydroxyl amount of magnetite, resulting in an improvement of adsorption ability of MB. However, these Cr-containing magnetites showed no adsorption to AOII. The MB degradation, following the Langmuir-Hinshelwood model, was well fitted by zero-order equation while AOII degradation following the Eley-Rideal model, was well fitted with two-stage pseudo-first-order kinetics. The Cr incorporation significantly improved the catalytic activity of magnetite in heterogeneous Fenton reaction, but the extent of improvement varied with the substitution level. These new insights are of high importance for the environmental application of metal substituted magnetites in the purification of textile wastewater. (C) 2012 Elsevier B.V. All rights reserved. |
| 语种 | 英语 |
| WOS记录号 | WOS:000304793300021 |
| 公开日期 | 2013-12-05 |
| 源URL | [http://ir.sinap.ac.cn/handle/331007/13311]  |
| 专题 | 上海应用物理研究所_中科院上海应用物理研究所2011-2017年 |
| 推荐引用方式 GB/T 7714 | Liang, XL,Zhong, YH,He, HP,et al. The application of chromium substituted magnetite as heterogeneous Fenton catalyst for the degradation of aqueous cationic and anionic dyes[J]. CHEMICAL ENGINEERING JOURNAL,2012,191. |
| APA | Liang, XL.,Zhong, YH.,He, HP.,Yuan, P.,Zhu, JX.,...&Jiang, Z.(2012).The application of chromium substituted magnetite as heterogeneous Fenton catalyst for the degradation of aqueous cationic and anionic dyes.CHEMICAL ENGINEERING JOURNAL,191. |
| MLA | Liang, XL,et al."The application of chromium substituted magnetite as heterogeneous Fenton catalyst for the degradation of aqueous cationic and anionic dyes".CHEMICAL ENGINEERING JOURNAL 191(2012). |
入库方式： OAI收割
来源：上海应用物理研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。