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Adsorption of various metals by carboxymethyl-β-cyclodextrin-modified Zn Al layered double hydroxides
Applied Clay Science ( IF 5.3 ) Pub Date : 2020-03-01 , DOI: 10.1016/j.clay.2020.105479
Tomohito Kameda , Mao Takaizumi , Shogo Kumagai , Yuko Saito , Toshiaki Yoshioka

Abstract Herein we studied metal ion adsorption in aqueous solution by Zn Al layered double hydroxides (Zn Al LDH) modified with carboxymethyl-β-cyclodextrin (CM-β-CD) ions (CM-β-CD•Zn-Al LDH). In single-ion solutions containing Li+, Nd3+, or Pb2+, CM-β-CD•Zn-Al LDH adsorbed Nd3+ and Pb2+ but adsorbed very little Li+. Maximum adsorption followed the order Pb2+ > Nd3+ > Li+. In a mixed solution containing Li+, Nd3+, Ni2+, Cu2+, and Pb2+, the adsorption rate followed the order Cu2+ ≫ Pb2+ > Nd3+ > Ni2+ > Li+.

中文翻译:

羧甲基-β-环糊精修饰的锌铝层状双氢氧化物对多种金属的吸附

摘要 本文研究了羧甲基-β-环糊精(CM-β-CD)离子(CM-β-CD•Zn-Al LDH)修饰的Zn Al层状双氢氧化物(Zn Al LDH)对水溶液中金属离子的吸附。在含有 Li+、Nd3+ 或 Pb2+ 的单离子溶液中,CM-β-CD•Zn-Al LDH 吸附了 Nd3+ 和 Pb2+,但吸附的 Li+ 很少。最大吸附遵循 Pb2+ > Nd3+ > Li+ 的顺序。在含有 Li+、Nd3+、Ni2+、Cu2+ 和 Pb2+ 的混合溶液中,吸附速率顺序为 Cu2+ ≫ Pb2+ > Nd3+ > Ni2+ > Li+。
更新日期:2020-03-01
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