Adsorption of rare earths (III) by calcium alginate-poly glutamic acid hybrid gels

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	Adsorption of rare earths (III) by calcium alginate-poly glutamic acid hybrid gels
	Wang, Fuchun 1,2; Zhao, Junmei 1; Wei, Xuetuan 1,2; Huo, Fang 1; Li, Wensong 1,2; Hu, Qiaoyu 1,2; Liu, Huizhou 1
刊名	JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY
	2014-07-01
卷号	89 期号:7 页码:969-977
关键词	alginate PGA adsorption rare earth neodymium
ISSN号	0268-2575
其他题名	J. Chem. Technol. Biotechnol.
中文摘要	BACKGROUND: Adsorption is believed to be an effective and green technology for the removal and recovery of rare earths (III) from dilute solution. RESULTS: A novel hybrid gel, abbreviated as ALG-PGA, has been prepared through crosslinking calcium alginate (ALG) and. gamma-poly glutamic acid (PGA), and its adsorption behavior towards whole rare earths (III) has been examined. Taking Nd(III) as a representative element, the adsorption capacity, kinetics, reusability, selectivity and mechanism have been investigated. Cation exchange is proposed as a possible adsorption mechanism. Doping PGA molecules into calcium alginate beads can significantly enhance the adsorption capacity and the selectivity of rare earths from non-rare earths. The maximum adsorption capacity obtained for Nd(III) was 1.65 mmol g(-1). Reutilization of ALG-PGA gel was confirmed for up to eight consecutive sorption-desorption cycles with no damage to the gel. CONCLUSION: The prepared biosorbent, ALG-PGA, was biocompatible and cost effective with a good adsorption ability for Nd(III), and provides a new approach to the recovery of rare earths (III) from rare earths-containing wastewater. (C) 2013 Society of Chemical Industry
英文摘要	BACKGROUND: Adsorption is believed to be an effective and green technology for the removal and recovery of rare earths (III) from dilute solution.
WOS标题词	Science & Technology ; Life Sciences & Biomedicine ; Physical Sciences ; Technology
类目[WOS]	Biotechnology & Applied Microbiology ; Chemistry, Multidisciplinary ; Engineering, Chemical
研究领域[WOS]	Biotechnology & Applied Microbiology ; Chemistry ; Engineering
关键词[WOS]	BIOPOLYMER POLY(GAMMA-GLUTAMIC ACID) ; HEAVY-METALS ; AQUEOUS-SOLUTIONS ; REMOVAL ; BEADS ; BIOSORPTION ; NEODYMIUM ; ADSORBENT ; NANOPARTICLES ; PARTICLES
收录类别	SCI
原文出处	://WOS:000337697900005
语种	英语
WOS记录号	WOS:000337697900005
公开日期	2014-08-28
内容类型	期刊论文
版本	出版稿
源URL	[http://ir.ipe.ac.cn/handle/122111/10971]
专题	过程工程研究所_研究所（批量导入）
作者单位	1.Chinese Acad Sci, Inst Proc Engn, Key Lab Green Proc & Engn, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Wang, Fuchun,Zhao, Junmei,Wei, Xuetuan,et al. Adsorption of rare earths (III) by calcium alginate-poly glutamic acid hybrid gels[J]. JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY,2014,89(7):969-977.
APA	Wang, Fuchun.,Zhao, Junmei.,Wei, Xuetuan.,Huo, Fang.,Li, Wensong.,...&Liu, Huizhou.(2014).Adsorption of rare earths (III) by calcium alginate-poly glutamic acid hybrid gels.JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY,89(7),969-977.
MLA	Wang, Fuchun,et al."Adsorption of rare earths (III) by calcium alginate-poly glutamic acid hybrid gels".JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY 89.7(2014):969-977.