TY - JOUR
T1 - Adsorption of various metals by carboxymethyl-β-cyclodextrin-modified Zn[sbnd]Al layered double hydroxides
AU - Kameda, Tomohito
AU - Takaizumi, Mao
AU - Kumagai, Shogo
AU - Saito, Yuko
AU - Yoshioka, Toshiaki
N1 - Funding Information:
This work was supported by JSPS KAKENHI Grant Number 15KK0021 .
Publisher Copyright:
© 2020 Elsevier B.V.
PY - 2020/3/15
Y1 - 2020/3/15
N2 - Herein we studied metal ion adsorption in aqueous solution by Zn[sbnd]Al layered double hydroxides (Zn[sbnd]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+.
AB - Herein we studied metal ion adsorption in aqueous solution by Zn[sbnd]Al layered double hydroxides (Zn[sbnd]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+.
KW - Carboxymethyl-β-cyclodextrin
KW - Five different metal ions
KW - Uptake
KW - Zn[sbnd]Al layered double hydroxide
UR - http://www.scopus.com/inward/record.url?scp=85078477260&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85078477260&partnerID=8YFLogxK
U2 - 10.1016/j.clay.2020.105479
DO - 10.1016/j.clay.2020.105479
M3 - Article
AN - SCOPUS:85078477260
SN - 0169-1317
VL - 187
JO - Applied Clay Science
JF - Applied Clay Science
M1 - 105479
ER -