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Controllable synthesis of mesoporous alumina with large surface area for high and fast fluoride removal
Xu, Naicai1,2,3; Liu, Zhong1; Dong, Yaping1; Hong, Tianzeng1,3; Dang, Li1,3; Li, Wu1
2016-11-01
发表期刊CERAMICS INTERNATIONAL
卷号42期号:14页码:15253-15260
文章类型Article
摘要Gamma phase of mesoporous alumina (MA) with large surface area was successfully synthesized by a facile hydrothermal method followed by thermal treatment for fluoride removal. The as-synthesized MA nanoparticles with average size of 20 nm-150 nm have ordered wormhole-like mesoporous structure. The pore size is 5 nm with a narrow distribution, and the specific surface area reaches 357 m(2) g(-1) while the bulk density is 0.45 cm(3) g(-1). Glucose as a small-molecule template plays an important role on the morphology, surface area and pore diameter of the MA. As an ionic adsorbent for fluoride removal, the maximum adsorption capacity of MA is 8.25 mg g(-1), and the remove efficiency reaches 90% in several minutes at pH of 3. The Langmuir equilibrium model is found to be suitable for describing the fluoride sorption on MA and the adsorption behavior follows the pseudo-second-order equation well with a correlation coefficient larger than 0.99. The larger surface area and relatively narrow pore size of MA are believed to be responsible for improving the adsorption efficiency for fluoride in aqueous solution. (C) 2016 Elsevier Ltd and Techna Group S.r.l. All rights reserved.
关键词Alumina Glucose Porous Material Adsorption Fluoride Removal
WOS标题词Science & Technology ; Technology
关键词[WOS]ACTIVATED ALUMINA ; AQUEOUS-SOLUTION ; GAMMA-ALUMINA ; ADSORPTION ; WATER ; COMPOSITE ; ADSORBENT ; GAMMA-AL2O3 ; NANOPARTICLES ; PERFORMANCE
收录类别SCI
语种英语
WOS研究方向Materials Science
WOS类目Materials Science, Ceramics
WOS记录号WOS:000382269800017
引用统计
被引频次:5[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.isl.ac.cn/handle/363002/6352
专题青海盐湖研究所知识仓储
盐湖资源综合利用工程技术中心
盐湖资源与化学实验室
作者单位1.Chinese Acad Sci, Qinghai Inst Salt Lakes, Key Lab Comprehens & Highly Efficient Utilizat Sa, Xining 810008, Peoples R China
2.Qinghai Normal Univ, Dept Chem, Xining 810008, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
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Xu, Naicai,Liu, Zhong,Dong, Yaping,et al. Controllable synthesis of mesoporous alumina with large surface area for high and fast fluoride removal[J]. CERAMICS INTERNATIONAL,2016,42(14):15253-15260.
APA Xu, Naicai,Liu, Zhong,Dong, Yaping,Hong, Tianzeng,Dang, Li,&Li, Wu.(2016).Controllable synthesis of mesoporous alumina with large surface area for high and fast fluoride removal.CERAMICS INTERNATIONAL,42(14),15253-15260.
MLA Xu, Naicai,et al."Controllable synthesis of mesoporous alumina with large surface area for high and fast fluoride removal".CERAMICS INTERNATIONAL 42.14(2016):15253-15260.
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