Effect of complexing anions on sorption of U(VI), 90Sr, and 90Y from aqueous solutions on layered double hydroxides of Mg, Al, and Nd

Uptake of Nd3+ and Sr2+ by Li–Al layered double hydroxide intercalated with triethylenetetramine-hexaacetic acid: kinetic and equilibrium studies

“…Mg-Al, Zn-Al, Cu-Al, and Mg-Fe LDHs intercalated with EDTA are capable of adsorbing metal ions, such as Cu 2+ , Cd 2+ , Pb 2+ , Ni 2+ , Co 2+ , Cs + , Sc 3+ , Y 3+ , and La 3+ in the cationic form from aqueous solutions. [9][10][11][12][13][14][15][16][17][18] In our recent study, Zn-Al LDHs intercalated with triethylenetetraminehexaacetic acid (TTHA$Zn-Al LDH) were prepared by coprecipitation, and their uptake of Nd 3+ and Sr 2+ ions from aqueous solutions was investigated. 19 TTHA is an aminocarboxylic acid used as a chelating ligand for metal ions.…”

Preparation of Zn–Al layered double hydroxide intercalated with triethylenetetramine-hexaacetic acid by coprecipitation: uptake of rare-earth metal ions from aqueous solutions

“…Mg-Al, Zn-Al, Cu-Al, and Mg-Fe LDHs intercalated with EDTA could uptake metal ions, such as Cu 2+ , Cd 2+ , Pb 2+ , Ni 2+ , Co 2+ , Cs + , Sr 2+ , Sc 3+ , Y 3+ , and La 3+ ions, in the cationic form from aqueous solutions. [18][19][20][21][22][23][24][25][26][27] EDTA is one of the aminocarboxylic acids used as a chelating ligand for metal ions. Other aminocarboxylic acids are iminodiacetic acid (IDA), nitrilotriacetic acid (NTA), and triethylenetetramine-hexaacetic acid (TTHA).…”