Boron adsorption using a new boron-selective hybrid gel and the commercial resin D564

ISL OpenIR > 青海盐湖研究所知识仓储

	Boron adsorption using a new boron-selective hybrid gel and the commercial resin D564
	Liu, Haining1,2 ; Ye, Xiushen1,2 ; Li, Quan1 ; Kim, Taehoon 3; Qing, Binju1,2 ; Guo, Min1,2 ; Ge, Fei1,2 ; Wu, Zhijian1,4 ; Lee, Kangtaek 3
	2009-06-05
发表期刊	COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
卷号	341 期号:1-3 页码:118-126
关键词	Boron Adsorption Boron-selective Resin Hybrid Gel Adsorption Kinetics Adsorption Mechanisms
摘要	A new hybrid gel with boron-selective functional groups is prepared with tetraethoxysilane (TEOS), (3-glycidoxypropyl)trimethoxysilane (GPTMS), and a new precursor (W) synthesized from GPTMS and N-methylglucamine (MG). We investigate the boron adsorption onto the hybrid gel and the commercial resin D564 in aqueous solution by varying the initial boron concentration, pH, ionic strength, and temperature. Adsorption of both the hybrid gel and the D564 can be described by the second-order kinetics and the hybrid gel shows the lower second-order rate constant and the initial adsorption rate than the commercial resin. A maximum boron adsorption occurs at pH 4-9, which can be explained by the adsorption suppression by H(+) ions at low pH and the weakened complexation by electrostatic repulsion at high pH. Ionic strength of the Solution affects both the adsorption kinetics and thermodynamics, and it has a more pronounced effect on the kinetics of the hybrid gel than the D564. For both the hybrid gel and the D564, adsorption was found to be a chemisorption, which may be more advantageous in removal of boron from water than physisorption due to a higher adsorption capacity and better selectivity. Compared with other boron-selective adsorbents, the boron-selective hybrid gel in this study is easy to prepare, and has a good mechanical strength and an adsorption capacity (1.15 mmol g(-1)). (C) 2009 Elsevier B.V. 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/363002/5914
专题	青海盐湖研究所知识仓储盐湖资源与化学实验室支撑部门
作者单位	1.Chinese Acad Sci, Qinghai Inst Salt Lakes, Key Lab Salt Lake Resources & Chem, Xining 810008, Peoples R China 2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China 3.Yonsei Univ, Dept Chem & Biomol Engn, Seoul 120749, South Korea 4.Huaqiao Univ, Coll Mat Sci & Engn, Key Lab Funct Mat Fujian Higher Educ, Quanzhou 362021, Peoples R China
推荐引用方式 GB/T 7714	Liu, Haining,Ye, Xiushen,Li, Quan,et al. Boron adsorption using a new boron-selective hybrid gel and the commercial resin D564[J]. COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS,2009,341(1-3):118-126.
APA	Liu, Haining.,Ye, Xiushen.,Li, Quan.,Kim, Taehoon.,Qing, Binju.,...&Lee, Kangtaek.(2009).Boron adsorption using a new boron-selective hybrid gel and the commercial resin D564.COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS,341(1-3),118-126.
MLA	Liu, Haining,et al."Boron adsorption using a new boron-selective hybrid gel and the commercial resin D564".COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS 341.1-3(2009):118-126.