中国科学院化学研究所机构知识库
Advanced  
ICCAS OpenIR  > 分子纳米结构与纳米技术实验室  > 期刊论文
题名: Extremely high arsenic removal capacity for mesoporous aluminium magnesium oxide composites
作者: Li, Wei1, 5; Chen, Dehong2; Xia, Fang1, 3; Tan, Jeannie Z. Y.1, 2; Huang, Pei-Pei4; Song, Wei-Guo4; Nursam, Natalita M.1, 2; Caruso, Rachel A.1, 2
刊名: ENVIRONMENTAL SCIENCE-NANO
发表日期: 2016
卷: 3, 期:1, 页:94-106
收录类别: SCI
英文摘要: Mesoporous aluminium magnesium oxide composites with varying composition (Mg content: 0-100%) and high surface area (118-425 m(2) g(-1)) are synthesized by a facile, low-cost and scalable sol-gel method. The mesostructure and crystallinity are controlled by varying the composition and calcination temperature. The mesopores evolve from hexagonally ordered to wormhole-like in structure with increasing Mg/Al ratio. The mesoporous aluminium magnesium oxide composites are highly efficient adsorbents for removing As(V) and As(III) from water. The mesoporous magnesium oxide shows unprecedentedly high adsorption capacities of 912 mg g(-1) for As(V) at pH 3 and 813 mg g(-1) for As(III) at pH 7 with a dose of 0.5 g L-1; significantly higher than those of reported adsorbents. Exceptional adsorption capacities for arsenic are retained over a wide pH range, and high selectivity for As(V) is realized even in the presence of co-existing anions. The arsenic adsorption performance correlates to the properties of the composites including the Mg/Al ratio, point of zero charge, crystallinity and mesostructure. The arsenic adsorption mechanism is elucidated. Due to their high surface areas, large pore volumes, tunable mesopore structures and high quantities of accessible hydroxyl groups with strong chemisorption binding affinity to arsenic, as well as extremely high adsorption capacities and selectivity, these mesoporous aluminium magnesium oxides are promising adsorbent candidates for the remediation of arsenic in water.
语种: 英语
内容类型: 期刊论文
URI标识: http://ir.iccas.ac.cn/handle/121111/36072
Appears in Collections:分子纳米结构与纳米技术实验室_期刊论文

Files in This Item:

There are no files associated with this item.


作者单位: 1.CSIRO Mfg, Clayton, Vic 3169, Australia
2.Univ Melbourne, Sch Chem, Particulate Fluids Proc Ctr, Melbourne, Vic 3010, Australia
3.Murdoch Univ, Sch Engn & Informat Technol, Murdoch, WA 6150, Australia
4.Chinese Acad Sci, Inst Chem, BNLMS, Beijing 100190, Peoples R China
5.Int Iberian Nanotechnol Lab INL, Ave Mestre Jose Veiga, P-4715330 Braga, Portugal
Service
Recommend this item
Sava as my favorate item
Show this item's statistics
Export Endnote File
Google Scholar
Similar articles in Google Scholar
[Li, Wei]'s Articles
[Chen, Dehong]'s Articles
[Xia, Fang]'s Articles
CSDL cross search
Similar articles in CSDL Cross Search
[Li, Wei]‘s Articles
[Chen, Dehong]‘s Articles
[Xia, Fang]‘s Articles
Related Copyright Policies
Null
Social Bookmarking
Add to CiteULike Add to Connotea Add to Del.icio.us Add to Digg Add to Reddit
所有评论 (0)
暂无评论
 
评注功能仅针对注册用户开放,请您登录
您对该条目有什么异议,请填写以下表单,管理员会尽快联系您。
内 容:
Email:  *
单位:
验证码:   刷新
您在IR的使用过程中有什么好的想法或者建议可以反馈给我们。
标 题:
 *
内 容:
Email:  *
验证码:   刷新

Items in IR are protected by copyright, with all rights reserved, unless otherwise indicated.

 

 

Valid XHTML 1.0!
Copyright © 2007-2017  中国科学院化学研究所 - Feedback
Powered by CSpace