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Biosorption of uranium by chemically modified Rhodotorula glutinis

文献类型：期刊论文

作者Lei, Fuan1; Zhang, Lina1; Bai, Jing1,2; Wu, Xiaolei1; Li, Xiaofei1,2; Guo, Junsheng1; Qin, Zhi1; Ding, Huajie1; Yao, Huijun1; Fan, Fangli1,2
刊名JOURNAL OF ENVIRONMENTAL RADIOACTIVITY
出版日期2010-11-01
卷号101期号:11页码:969-973
ISSN号0265-931X
关键词Biosorption Chemical modification Uranium Functional groups Rhodotorula glutinis FTIR analysis
DOI10.1016/j.jenvrad.2010.07.003
英文摘要The present paper reports the biosorption of uranium onto chemically modified yeast cells, Rhodotorula glutinis, in order to study the role played by various functional groups in the cell wall. Esterification of the carboxyl groups and methylation of the amino groups present in the cells were carried out by methanol and formaldehyde treatment, respectively. The uranium sorption capacity increased 31% for the methanol-treated biomass and 11% for the formaldehyde-treated biomass at an initial uranium concentration of 140 mg/L The enhancement of uranium sorption capacity was investigated by Fourier transform infrared (FTIR) spectroscopy analysis, with amino and carboxyl groups were determined to be the important functional groups involved in uranium binding. The biosorption isotherms of uranium onto the raw and chemically modified biomass were also investigated with varying uranium concentrations. Langmuir and Freundlich models were well able to explain the sorption equilibrium data with satisfactory correlation coefficients higher than 0.9. (C) 2010 Elsevier Ltd. All rights reserved.
WOS关键词SACCHAROMYCES-CEREVISIAE ; AQUEOUS-SOLUTION ; PSEUDOMONAS-AERUGINOSA ; MODIFIED BIOMASS ; REMOVAL ; METAL ; ACCUMULATION ; BIOSORBENTS ; BINDING ; MECHANISM
资助项目National Natural Science Foundation of China[10575122] ; National Natural Science Foundation of China[10705035] ; Director's Foundation of Institute of Modern Physics, Chinese Academy of Sciences[0812060SZO]
WOS研究方向Environmental Sciences & Ecology
语种英语
出版者ELSEVIER SCI LTD
WOS记录号WOS:000282492700012
资助机构National Natural Science Foundation of China ; Director's Foundation of Institute of Modern Physics, Chinese Academy of Sciences
公开日期2011-04-20
源URL[http://ir.imp.cas.cn/handle/113462/8027]  
专题近代物理研究所_近代物理研究所知识存储（2010之前）
近代物理研究所_实验物理中心
近代物理研究所_材料研究中心
通讯作者Bai, Jing
作者单位1.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China
2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China
推荐引用方式
GB/T 7714		 Lei, Fuan,Zhang, Lina,Bai, Jing,et al. Biosorption of uranium by chemically modified Rhodotorula glutinis[J]. JOURNAL OF ENVIRONMENTAL RADIOACTIVITY,2010,101(11):969-973.
APA Lei, Fuan.,Zhang, Lina.,Bai, Jing.,Wu, Xiaolei.,Li, Xiaofei.,...&Lin, Maosheng.(2010).Biosorption of uranium by chemically modified Rhodotorula glutinis.JOURNAL OF ENVIRONMENTAL RADIOACTIVITY,101(11),969-973.
MLA Lei, Fuan,et al."Biosorption of uranium by chemically modified Rhodotorula glutinis".JOURNAL OF ENVIRONMENTAL RADIOACTIVITY 101.11(2010):969-973.

入库方式： OAI收割

来源：近代物理研究所

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