The enhancement roles of layered double hydroxide on the reductive immobilization of selenate by nanoscale zero valent iron: Macroscopic and microscopic approaches
Hu, BW; Ye, F; Jin, CA; Ma, XX; Huang, CC; Sheng, GD; Ma, JY; Wang, XK; Huang, YY
2017
发表期刊CHEMOSPHERE
ISSN0045-6535
卷号184期号:-页码:408-416
文章类型期刊论文
摘要Herein, we utilized nanoscale zero-valent iron loaded on layered double hydroxide (NZVI/LDH) to immobilize Se(VI) and evaluated the enhancement role of LDH in the NZVI reaction system. The structural characterization indicated that LDH could stabilize and disperse NZVI as well as prevent NZVI from oxidation, thereby increasing iron reactivity. Batch experiments displayed that, compared with those by NZVI, both extent and rate of Se(VI) immobilized by NZVI/LDH significantly increased, owing to the prominent synergistic effect ascribing from adsorption and reduction. Kinetics studies under a series of conditions showed that Se(VI) reaction could be well described by pseudo first-order model. The performance of Se(VI) immobilization was inhibited to a considerable extent by most of co-existing ions, Nevertheless, the presence of Cu2+ improved performance of NZVI/LDH due to its role as a catalyst or medium of charge transfer during reduction. CANES revealed that LDH acted as a promoter for complete reduction of Se(VI) into Se(0)/Se(-II) over a wide pH range, whereas EXAFS suggested that LDH acted as a scavenger for insoluble products, making more reactive sites exposure to Se(VI) for reduction. These results suggested that NZVI/LDH as a promising candidate exhibited potential application in remediation of wastewaters containing Se(VI). (C) 2017 Elsevier Ltd. All rights reserved.
关键词Supported Zerovalent Iron Weak Magnetic-field Aqueous-solution Hexavalent Chromium Selenium Reduction Plasma Technique Cr(Vi) Removal Granular Iron Waste-water Sequestration
DOI10.1016/j.chemosphere.2017.05.179
关键词[WOS]SUPPORTED ZEROVALENT IRON ; WEAK MAGNETIC-FIELD ; AQUEOUS-SOLUTION ; HEXAVALENT CHROMIUM ; SELENIUM REDUCTION ; PLASMA TECHNIQUE ; CR(VI) REMOVAL ; GRANULAR IRON ; WASTE-WATER ; SEQUESTRATION
收录类别SCI
语种英语
WOS记录号WOS:000407525500047
引用统计
被引频次:12[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.sinap.ac.cn/handle/331007/28861
专题中科院上海应用物理研究所2011-2018年
推荐引用方式
GB/T 7714
Hu, BW,Ye, F,Jin, CA,et al. The enhancement roles of layered double hydroxide on the reductive immobilization of selenate by nanoscale zero valent iron: Macroscopic and microscopic approaches[J]. CHEMOSPHERE,2017,184(-):408-416.
APA Hu, BW.,Ye, F.,Jin, CA.,Ma, XX.,Huang, CC.,...&Huang, YY.(2017).The enhancement roles of layered double hydroxide on the reductive immobilization of selenate by nanoscale zero valent iron: Macroscopic and microscopic approaches.CHEMOSPHERE,184(-),408-416.
MLA Hu, BW,et al."The enhancement roles of layered double hydroxide on the reductive immobilization of selenate by nanoscale zero valent iron: Macroscopic and microscopic approaches".CHEMOSPHERE 184.-(2017):408-416.
条目包含的文件 下载所有文件
文件名称/大小 文献类型 版本类型 开放类型 使用许可
The enhancement role(2406KB)期刊论文作者接受稿开放获取CC BY-NC-SA浏览 下载
个性服务
推荐该条目
保存到收藏夹
查看访问统计
导出为Endnote文件
谷歌学术
谷歌学术中相似的文章
[Hu, BW]的文章
[Ye, F]的文章
[Jin, CA]的文章
百度学术
百度学术中相似的文章
[Hu, BW]的文章
[Ye, F]的文章
[Jin, CA]的文章
必应学术
必应学术中相似的文章
[Hu, BW]的文章
[Ye, F]的文章
[Jin, CA]的文章
相关权益政策
暂无数据
收藏/分享
文件名: The enhancement roles of layered double hydroxide on the reductive immobilization of selenate by nanoscale zero valent iron_ Macroscopic and microscopic approaches.pdf
格式: Adobe PDF
所有评论 (0)
暂无评论
 

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。