Mechanism of Cu(Ⅱ) biosorption by Saccharomyces Cerevisiae

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外文摘要：This paper studies how chemical modification influences the Saccharomyces Cerevisiae adsorption on copper ion and the desorption of nitric acid， and carries out infrared spectrum analysis of native， adsorbing and desorbing Saccharomyces Cerevisiae。 Results show that carboxyl and amino group in Saccharomyces Cerevisiae play an important role in the process of adsorbing Cu(Ⅱ)。 The adsorption on Cu(Ⅱ) by Saccharomyces Cerevisiae is mainly the process of surface adsorption。 The process of biosorption on heavy metals is mainly reversible adsorption; however， there still exists irreversible adsorption。 FTIR analysis further indicates that carboxyl and hydroxyl adsorption on Cu(Ⅱ) is reversible adsorption， which amino group adsorption on Cu(Ⅱ) is irreversible adsorption。

外文关键词：

Saccharomyces CerevisiaeCopper ionChemical Saccharomyces CerevisiaeCopper ionChemical

作者：

Limin Dong、Zhuo Diao、Juan Du、Zhao Jiang、Qingjuan Meng、Ying Zhang

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作者单位：

School of Resource & Environment,Northeast Agricultural University,Harbin,China

会议名称：

The 3rd International Conference on Bioinformatics and Biomedical Engineering(iCBBE 2009)(第三届生物信息与生物医学工程国际会议）论文集

会议地点：

Beijing(CN)

会议母体文献：

Bioinformatics and Biomedical Engineering , 2009. ICBBE 2009

页码：

1-4

出版时间：

2009