Diglycolic amic acid-modified E. coli as a biosorbent for the recovery of rare earth elements
Diglycolic amic acid-modified E. coli as a biosorbent for the recovery of rare earth elements
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DOI：
10.1016/j.bej.2016.06.005
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发表时间：
2016-09-15
影响因子：
3.9
通讯作者：
Goto, Masahiro
中科院分区：
文献类型：
--
作者：
Hosomomi, Yukiho;Wakabayashi, Rie;Goto, Masahiro
近年来，生物吸附作为一种替代传统技术回收稀土元素的方法受到了广泛关注。本研究对大肠杆菌（Escherichia coli，E.大肠杆菌）进行化学修饰，以提高其作为稀土生物吸附剂的性能。通过琥珀酰化E.杆菌吸附曲线采用修正的E.大肠杆菌的特征是二甘醇酰胺酸组。改性后对过渡金属离子的吸附性能没有影响。这些结果表明，E.大肠杆菌中含有对稀土元素具有高亲和力的功能基团，提高了吸附效率。改性E.大肠杆菌的数量增加了一倍。对E.大肠杆菌是一种有效的提高吸附效果的方法。(C)© 2016 Elsevier B.V.版权所有。
Biosorption has recently attracted much attention as an alternative to conventional techniques for the recovery of rare earth elements (REEs). In this study, Escherichia coli (E. coli) was chemically modified to improve its performance as a biosorbent for REEs. The diglycolic amic acid group, which shows high affinity to REEs, was introduced by succinylation of the amine groups on the E. coli. Adsorption curves using the modified E. coli were characteristic of the diglycolic amic acid group. The adsorption performance for transition metal ions was not affected by the modification. These results suggest that modification of E. coli with a functional group with high affinity to REEs increases the effectiveness of adsorption. The maximum uptakes of REEs on the modified E. coli were doubled. Modification of E. coli is an effective method for enhancing the adsorption performance for REEs. (C) 2016 Elsevier B.V. All rights reserved.