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Adsorption of various metals by carboxymethyl-β-cyclodextrin-modified ZnAl layered double hydroxides
https://orcid.org/0000-0002-8929-3772
Abstract Herein we studied metal ion adsorption in aqueous solution by ZnAl layered double hydroxides (ZnAl 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+.
Highlights CM-β-CD•Zn-Al LDH adsorbed Nd3+ and Pb2+ but adsorbed very little Li+. In a single solution, maximum adsorption followed the order Pb2+ > Nd3+ > Li+. In a mixed solution, adsorption followed the order Cu2+ ≫ Pb2+ > Nd3+ > Ni2+ > Li+.
Adsorption of various metals by carboxymethyl-β-cyclodextrin-modified ZnAl layered double hydroxides
https://orcid.org/0000-0002-8929-3772
Abstract Herein we studied metal ion adsorption in aqueous solution by ZnAl layered double hydroxides (ZnAl 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+.
Highlights CM-β-CD•Zn-Al LDH adsorbed Nd3+ and Pb2+ but adsorbed very little Li+. In a single solution, maximum adsorption followed the order Pb2+ > Nd3+ > Li+. In a mixed solution, adsorption followed the order Cu2+ ≫ Pb2+ > Nd3+ > Ni2+ > Li+.
Adsorption of various metals by carboxymethyl-β-cyclodextrin-modified ZnAl layered double hydroxides
https://orcid.org/0000-0002-8929-3772
Abstract Herein we studied metal ion adsorption in aqueous solution by ZnAl layered double hydroxides (ZnAl 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+.
Highlights CM-β-CD•Zn-Al LDH adsorbed Nd3+ and Pb2+ but adsorbed very little Li+. In a single solution, maximum adsorption followed the order Pb2+ > Nd3+ > Li+. In a mixed solution, adsorption followed the order Cu2+ ≫ Pb2+ > Nd3+ > Ni2+ > Li+.
Adsorption of various metals by carboxymethyl-β-cyclodextrin-modified ZnAl layered double hydroxides
Kameda, Tomohito (author) / Takaizumi, Mao (author) / Kumagai, Shogo (author) / Saito, Yuko (author) / Yoshioka, Toshiaki (author)
Applied Clay Science ; 187
2020-01-26
Article (Journal)
Electronic Resource
English
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