Mechanism of Cu(Ⅱ) biosorption by Saccharomyces Cerevisiae

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.

关键词： Saccharomyces Cerevisiae Copper ion Chemical Saccharomyces Cerevisiae Copper ion Chemical

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

作者单位: School of Resource & Environment,Northeast Agricultural University,Harbin,China

会议类型: 国际会议

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)

会议地点: 北京

会议语种:英文

页码: 1-4

在线出版日期: 2009-06-11（万方平台首次上网日期，不代表论文的发表时间）