IHEP OpenIR  > 多学科研究中心
Removal of arsenate from water by using an Fe-Ce oxide adsorbent: Effects of coexistent fluoride and phosphate
Zhang, Y; Dou, XM; Yang, M; He, H; Jing, CY; Wu, ZY; Wu ZY(吴自玉)
2010
发表期刊JOURNAL OF HAZARDOUS MATERIALS
卷号179期号:1-3页码:#REF!
通讯作者Zhang, Y (reprint author), Chinese Acad Sci, State Key Lab Environm Aquat Chem, Ecoenvironm Sci Res Ctr, POB 2871, Beijing 100085, Peoples R China.
文章类型Article
摘要The Langmuir two-site equation, X-ray photoelectron spectroscopy, and extended X-ray absorption fine structure spectroscopy have been employed to study the competitive behaviors of fluoride (F) and phosphate (P) in relation to arsenate adsorption on an Fe-Ce adsorbent as well as the mechanisms involved. The two-site isotherm revealed the presence of two kinds of adsorption sites with different binding affinities for arsenate. Both the total and low-binding-energy maximum adsorption capacities (Q and Q(1)) of arsenate decreased significantly even at a molar ratio of As/P = 1:0.1. The coexistence of F, only influenced the total Q of arsenate at high simultaneous F concentrations. The fact that Fe-Ce released 0.15-0.24 mmol sulfate for every mmol arsenate adsorbed suggested that, while sulfate groups might have played a role for adsorption, surface hydroxyl groups should be the major active sites. The XPS results indicated that arsenate and P are mainly adsorbed through the substitution of Fe surface active sites, while F is mainly adsorbed through substitution of Ce surface active sites. The As k-edge EXAFS data show that the second peak of Fe-Ce after arsenate adsorption is As-Fe shell, which further supported that arsenate adsorption occurs mainly at the Fe surface active sites. (c) 2010 Elsevier B.V. All rights reserved.
关键词Arsenic removal Phosphate Fluoride Competitive adsorption Extended X-ray absorption fine structure spectroscopy
学科领域Engineering; Environmental Sciences & Ecology
DOI10.1016/j.jhazmat.2010.02.081
收录类别SCI
WOS类目Engineering, Environmental ; Engineering, Civil ; Environmental Sciences
WOS记录号WOS:000278626700030
引用统计
被引频次:29[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/226947
专题多学科研究中心
推荐引用方式
GB/T 7714
Zhang, Y,Dou, XM,Yang, M,et al. Removal of arsenate from water by using an Fe-Ce oxide adsorbent: Effects of coexistent fluoride and phosphate[J]. JOURNAL OF HAZARDOUS MATERIALS,2010,179(1-3):#REF!.
APA Zhang, Y.,Dou, XM.,Yang, M.,He, H.,Jing, CY.,...&吴自玉.(2010).Removal of arsenate from water by using an Fe-Ce oxide adsorbent: Effects of coexistent fluoride and phosphate.JOURNAL OF HAZARDOUS MATERIALS,179(1-3),#REF!.
MLA Zhang, Y,et al."Removal of arsenate from water by using an Fe-Ce oxide adsorbent: Effects of coexistent fluoride and phosphate".JOURNAL OF HAZARDOUS MATERIALS 179.1-3(2010):#REF!.
条目包含的文件
文件名称/大小 文献类型 版本类型 开放类型 使用许可
2249.pdf(641KB)期刊论文作者接受稿限制开放CC BY-NC-SA请求全文
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
[Zhang, Y]的文章
[Dou, XM]的文章
[Yang, M]的文章
百度学术
百度学术中相似的文章
[Zhang, Y]的文章
[Dou, XM]的文章
[Yang, M]的文章
必应学术
必应学术中相似的文章
[Zhang, Y]的文章
[Dou, XM]的文章
[Yang, M]的文章
相关权益政策
暂无数据
收藏/分享
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。