Boron adsorption by composite magnetic particles

ISL OpenIR > 青海盐湖研究所知识仓储

	Boron adsorption by composite magnetic particles
	Liu, Haining2,3 ; Qing, Binju2,3 ; Ye, Xiushen2,3 ; Li, Quan2 ; Lee, Kangtaek 1; Wu, Zhijian2,4
	2009-08-15
发表期刊	CHEMICAL ENGINEERING JOURNAL
ISSN	1385-8947
卷号	151 期号:1-3 页码:235-240
关键词	Boric Acid Composite Magnetic Particle Adsorption Electrostatic Interaction Hydrophobic Interaction Hydrogen Bonding
摘要	We prepared Fe(3)O(4) particles and two types of composite magnetic particles derived from Fe(3)O(4) and bis(trimethoxysilylpropyl)amine (TSPA), and from Fe(3)O(4) and a flocculating agent 1010f (a copolymer of acrylamide, sodium acrylate, and [2-(acryloyloxy)ethyl]trimethylammonium chloride). Using these particles, boron adsorption in aqueous solution was comprehensively investigated. The adsorption was found to occur rapidly in the first 2 h and the particle composition did not have a significant effect on the equilibrium time. We found that Fe(3)O(4)-TSPA particles presented the highest adsorption capacity, whereas the pure Fe(3)O(4) particles showed the lowest capacity. For all particles, amount of boron adsorption decreased with the initial pH in the order of 6.0 > 2.2 > 11.7. In general, the adsorption amount appeared to decrease with the increase in ionic strength. We propose that boron is adsorbed in the form of both H(3)BO(3) and B(OH)(4)(-) through the interactions of hydrogen bonding, electrostatic and hydrophobic attractions. The information gained in this study would be helpful for both understanding the adsorption mechanism and designing low-cost and easily available adsorbents for boron. (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/363002/2097
专题	青海盐湖研究所知识仓储
作者单位	1.Yonsei Univ, Dept Chem & Biomol Engn, Seoul 120749, South Korea 2.Chinese Acad Sci, Qinghai Inst Salt Lakes, Key Lab Salt Lake Resources & Chem, Xining 810008, Peoples R China 3.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China 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,Qing, Binju,Ye, Xiushen,et al. Boron adsorption by composite magnetic particles[J]. CHEMICAL ENGINEERING JOURNAL,2009,151(1-3):235-240.
APA	Liu, Haining,Qing, Binju,Ye, Xiushen,Li, Quan,Lee, Kangtaek,&Wu, Zhijian.(2009).Boron adsorption by composite magnetic particles.CHEMICAL ENGINEERING JOURNAL,151(1-3),235-240.
MLA	Liu, Haining,et al."Boron adsorption by composite magnetic particles".CHEMICAL ENGINEERING JOURNAL 151.1-3(2009):235-240.