| 化学修饰啤酒酵母菌对铀的吸附特性 |
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| 引用本文： | 彭国文,丁德馨,胡南,杨雨山,王晓亮. 化学修饰啤酒酵母菌对铀的吸附特性[J]. 化工学报, 2011, 62(11): 3201. DOI: 10.3969/j.issn.0438-1157.2011.11.032 |
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| 作者姓名： | 彭国文 丁德馨 胡南 杨雨山 王晓亮 |
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| 作者单位： | 中南大学资源与安全工程学院;南华大学铀矿冶生物技术国防重点学科实验室;南华大学化学化工学院 |
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| 基金项目： | 国家自然科学基金项目(50774047,10975071); 湖南省教育厅科研项目(10C1180); 衡阳市科技局项目(2010ks32)~~ |
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| 摘 要： | 以甲醛为交联剂, 将胱氨酸修饰到啤酒酵母菌(SC)上, 并采用海藻酸钠和明胶固定化, 得到一种新型的生物吸附剂--修饰啤酒酵母菌(MSC)。通过红外光谱(IR)分别表征了两种吸附剂的结构, 考察了其吸附铀的主要影响因素即溶液pH值、吸附时间等。结果表明: MSC细胞表面具有大量吸附铀的基团, MSC和SC吸附铀的最佳条件是: pH值为6.0, 关 键 词： | 修饰啤酒酵母化学修饰铀FONT-FAMILY: Times New Roman mso-bidi-font-size: 12.0pt mso-bidi-font-family: 宋体 mso-font-kerning: 1.0pt mso-ansi-language: EN-US mso-fareast-language: ZH-CN mso-bidi-language: AR-SA mso-fareast-font-family: 宋体 mso-hansi-font-family: 宋体'> FONT-FAMILY: 宋体 mso-bidi-font-size: 12.0pt mso-ascii-font-family: Times New Roman mso-bidi-font-family: 宋体 mso-font-kerning: 1.0pt mso-ansi-language: EN-US mso-fareast-language: ZH-CN mso-bidi-language: AR-SA' |
Adsorption characteristics of uranium by Saccharomyces cerevisiae by chemical modification |
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| PENG Guowen,DING Dexin,HU Nan,YANG Yushan,WANG Xiaoliang. Adsorption characteristics of uranium by Saccharomyces cerevisiae by chemical modification[J]. Journal of Chemical Industry and Engineering(China), 2011, 62(11): 3201. DOI: 10.3969/j.issn.0438-1157.2011.11.032 |
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| Authors: | PENG Guowen DING Dexin HU Nan YANG Yushan WANG Xiaoliang |
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| Affiliation: | PENG Guowen1,2,3,DING Dexin2,HU Nan2,YANG Yushan1,WANG Xiaoliang3 (1School of Resources and Safety Engineering,Central South University,Changsha 410083,Hunan,China,2Key Discipline Laboratory for National Defence for Biotechnology in Uranium Mining and Hydrometallurgy,University of South China,Hengyang 421001,3School of Chemistry and Chemical Engineering,China) |
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| Abstract: | Modified Saccharomyces cerevisiae(MSC)was prepared from Saccharomyces cerevisiae(SC)by cystine modification and formaldehyde as crosslinker,and was immobilized by alginate sodium and glut.FTIR was used to characterize MSC and SC,and the effects of pH value and time on uranium adsorption over MSC and SC were investigated.It was found that there were many functional groups on the cell wall of MSC for adsorbing uranium.The optimal conditions for uranium adsorption were as follows: pH of the solution 6.0;the ad... |
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| Keywords: | modified Saccharomyces cerevisiae chemical modification uranium biosorption kinetics model |
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