Enhanced Electroreductive Removal of Bromate by a Supported Pd-In Bimetallic Catalyst: Kinetics and Mechanism Investigation
文献类型：期刊论文
| 作者 | Lan, Huachun; Mao, Ran; Tong, Yating; Liu, Yanzhen; Liu, Huijuan; An, Xiaoqiang; Liu, Ruiping |
| 刊名 | ENVIRONMENTAL SCIENCE & TECHNOLOGY
 |
| 出版日期 | 2016-11-01 |
| 卷号 | 50期号:21页码:11872-11878 |
| DOI | 10.1021/acs.est.6b02822 |
| 英文摘要 | In this work, the electroreductive removal of bromate by a Pd-1-In-4/Al2O3 catalyst in a three-dimensional electrochemical reactor was investigated. A total of 96.4% of bromate could be efficiently reduced and completely converted into bromide within 30 min under optimized conditions. On the basis of the characterization results and kinetics analysis, a synergistic effect of Pd and In was observed, andPd(1)-In-4/Al2O3 had the highest reaction rate constant of 0.1275 min-1 (vs 0.0413, 0.0328, and 0.0253 min-1 for In/Al2O3, Pd/Al2O3, and Al2O3). The results of electron spin resonance and scavenger experiments confirmed that both direct electron transfer and indirect reduction by atomic H* were involved in the bromate removal process, while the direct reduction played a more important role. Moreover, the introduction of In could increase the zeta potential of Pd-1-In-4/Al2O3, facilitating bromate adsorption and its subsequent reduction on the catalyst. Finally, a reaction mechanism for bromate reduction by Pd-1-In-4/Al2O3 was proposed based on all the experimental results. |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/36176]  |
| 专题 | 生态环境研究中心_中国科学院饮用水科学与技术重点实验室 |
| 推荐引用方式 GB/T 7714 | Lan, Huachun,Mao, Ran,Tong, Yating,et al. Enhanced Electroreductive Removal of Bromate by a Supported Pd-In Bimetallic Catalyst: Kinetics and Mechanism Investigation[J]. ENVIRONMENTAL SCIENCE & TECHNOLOGY,2016,50(21):11872-11878. |
| APA | Lan, Huachun.,Mao, Ran.,Tong, Yating.,Liu, Yanzhen.,Liu, Huijuan.,...&Liu, Ruiping.(2016).Enhanced Electroreductive Removal of Bromate by a Supported Pd-In Bimetallic Catalyst: Kinetics and Mechanism Investigation.ENVIRONMENTAL SCIENCE & TECHNOLOGY,50(21),11872-11878. |
| MLA | Lan, Huachun,et al."Enhanced Electroreductive Removal of Bromate by a Supported Pd-In Bimetallic Catalyst: Kinetics and Mechanism Investigation".ENVIRONMENTAL SCIENCE & TECHNOLOGY 50.21(2016):11872-11878. |
入库方式： OAI收割
来源：生态环境研究中心
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