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Adsorption of rare earths (III) by calcium alginate-poly glutamic acid hybrid gels
Alternative TitleJ. Chem. Technol. Biotechnol.
Wang, Fuchun1,2; Zhao, Junmei1; Wei, Xuetuan1,2; Huo, Fang1; Li, Wensong1,2; Hu, Qiaoyu1,2; Liu, Huizhou1
2014-07-01
Source PublicationJOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY
ISSN0268-2575
Volume89Issue:7Pages:969-977
AbstractBACKGROUND: 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; BACKGROUND: Adsorption is believed to be an effective and green technology for the removal and recovery of rare earths (III) from dilute solution.
KeywordAlginate Pga Adsorption Rare Earth Neodymium
SubtypeArticle
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine ; Physical Sciences ; Technology
DOI10.1002/jctb.4186
URL查看原文
Indexed BySCI
Language英语
WOS KeywordBIOPOLYMER POLY(GAMMA-GLUTAMIC ACID) ; HEAVY-METALS ; AQUEOUS-SOLUTIONS ; REMOVAL ; BEADS ; BIOSORPTION ; NEODYMIUM ; ADSORBENT ; NANOPARTICLES ; PARTICLES
WOS Research AreaBiotechnology & Applied Microbiology ; Chemistry ; Engineering
WOS SubjectBiotechnology & Applied Microbiology ; Chemistry, Multidisciplinary ; Engineering, Chemical
WOS IDWOS:000337697900005
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Cited Times:34[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Version出版稿
Identifierhttp://ir.ipe.ac.cn/handle/122111/10971
Collection研究所(批量导入)
Affiliation1.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
Recommended Citation
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.
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