Comparison of boric acid adsorption by hybrid gels

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	Comparison of boric acid adsorption by hybrid gels
	Liu, Haining1,2 ; Ye, Xiushen1,2 ; Li, Wu1 ; Dong, Yaping1 ; Wu, Zhijian1
	2009-02-01
发表期刊	DESALINATION AND WATER TREATMENT
ISSN	1944-3994
卷号	2 期号:1-3 页码:185-194
关键词	Boric Acid Hybrid Gel Adsorption Mechanism Hydrogen Bonding Electrostatic Interaction Hydrophobic Interaction
摘要	Mannitol doped and un-doped hybrid gels derived from bis(trimethoxysilylpropyl)amine (TSPA), or the mixture of TSPA with tetraethoxysilane (TEOS), or the mixture of 3-aminopropyltriethoxysilane (APTES) with TEOS were prepared. Textual properties and point of zero charges were determined to characterize the gels. The adsorption of boron from its water Solutions by the acidified and un-acidified gels in solutions at three different initial pH values were compared comprehensively. In general the gels derived from APTES and TEOS have the highest adsorption amount among all the gels. The gels doped with mannitol and the gels without doping show similar adsorption amount, that is, the addition of mannitol does not promote the adsorption. After acidification the adsorption amount of the gels increases. In general, the adsorption decreases with the increase in solution pH. It was found that boron is adsorbed in both H(3)BO(3) and B(OH)(4)(-) forms through the interactions of hydrogen bonding, electrostatic and hydrophobic attractions. The information gained in this study is helpful for the understanding of the adsorption mechanisms, designing and preparing some low cost and easily available adsorbents for boron.
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/363002/2116
专题	青海盐湖研究所知识仓储
作者单位	1.Chinese Acad Sci, Qinghai Inst Salt Lakes, Xining 810008, Peoples R China 2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Liu, Haining,Ye, Xiushen,Li, Wu,et al. Comparison of boric acid adsorption by hybrid gels[J]. DESALINATION AND WATER TREATMENT,2009,2(1-3):185-194.
APA	Liu, Haining,Ye, Xiushen,Li, Wu,Dong, Yaping,&Wu, Zhijian.(2009).Comparison of boric acid adsorption by hybrid gels.DESALINATION AND WATER TREATMENT,2(1-3),185-194.
MLA	Liu, Haining,et al."Comparison of boric acid adsorption by hybrid gels".DESALINATION AND WATER TREATMENT 2.1-3(2009):185-194.

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