Controllable synthesis of mesoporous alumina with large surface area for high and fast fluoride removal

ISL OpenIR > 青海盐湖研究所知识仓储

	Controllable synthesis of mesoporous alumina with large surface area for high and fast fluoride removal
	Xu, Naicai 1,2,3; Liu, Zhong1 ; Dong, Yaping1 ; Hong, Tianzeng 1,3; Dang, Li 1,3; Li, Wu1
	2016-11-01
发表期刊	CERAMICS INTERNATIONAL
卷号	42 期号:14 页码:15253-15260
关键词	Alumina Glucose Porous Material Adsorption Fluoride Removal
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.
语种	英语
引用统计
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
推荐引用方式 GB/T 7714	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.