%0 Journal Article
%T Adsorption Performance and Mechanism of Binding Cu(Ⅱ) on Saccharomyces cerevisiae<br>废啤酒酵母吸附水溶液中Cu2+的性能及机理研究
%A WANG Xi
%A GAN Shu-ying
%A GE Chun-li
%A CUI Long-zhe
%A <br>王喜
%A 甘树应
%A 葛春丽
%A 崔龙哲
%J 中国生物工程杂志
%D 2008
%I 
%X Saccharomyces cerevisiae was used as a new type of biosorbent for the removal of copper. Various experimental parameters (e.g. equilibrium pH, contact time, Cu2+ concentration) were investigated. The biosorption of Cu2+ by saccharomyces cerevisiae is a quick process which only need 4-6 hours to reach the equilibrium, and the optimum pH is 5.It is indicated that Langmuir isotherm sorption model is suitable for the isotherm adsorption of copper. Sulfonate, carboxyl and amine groups were present in the biosorbent, which was confirmed by FTIR and proton-binding model. Chemical sorption was dominated in the binding of its molecules. Different functional groups were ionized in different pH conditions and played a pronounced role in the sorption.
%K biosorption
%K saccharomyces cerevisiae
%K Cu2+
%K functional groups<br>生物吸附
%K 废啤酒酵母
%K Cu2
%K 官能团
%K 废啤酒酵母
%K 吸附过程
%K 水溶液
%K 性能
%K 机理研究
%K Binding
%K Mechanism
%K Performance
%K Adsorption
%K 作用
%K 电离
%K 酸性条件
%K 化学吸附
%K 单分子层
%K 功能团
%K 氨基
%K 羧基
%K 磺酸基
%K 生物吸附剂
%K 方法确定
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=90BA3D13E7F3BC869AC96FB3DA594E3FE34FBF7B8BC0E591&jid=951380788B355DEA7D75520FA3B199C9&aid=080D4EBD6AEC531A851A3A2024AABCAB&yid=67289AFF6305E306&vid=D3E34374A0D77D7F&iid=38B194292C032A66&sid=0401E2DB1F51F8DE&eid=68D88C2FCF9C3098&journal_id=1671-8135&journal_name=中国生物工程杂志&referenced_num=0&reference_num=11