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Boron adsorption using a new boron-selective hybrid gel and the commercial resin D564
Liu, Haining1,2; Ye, Xiushen1,2; Li, Quan1; Kim, Taehoon3; Qing, Binju1,2; Guo, Min1,2; Ge, Fei1,2; Wu, Zhijian1,4; Lee, Kangtaek3
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
文章类型Article
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.
关键词Boron Adsorption Boron-selective Resin Hybrid Gel Adsorption Kinetics Adsorption Mechanisms
WOS标题词Science & Technology ; Physical Sciences
关键词[WOS]CROSS-LINKED POLYMER ; ION-EXCHANGE-RESIN ; AQUEOUS-SOLUTIONS ; SOL-GEL ; HYDROTALCITE-LIKE ; REVERSE-OSMOSIS ; DYE ADSORPTION ; FLY-ASH ; REMOVAL ; WATER
收录类别SCI
语种英语
WOS研究方向Chemistry
WOS类目Chemistry, Physical
WOS记录号WOS:000266544400017
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
科研管理、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.
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