
TY  - JOUR
A1  - Farrah, H 
A1  - Pickering, WF 
T1  - The sorption of lead and cadmium species by clay minerals
JF  - Australian Journal of Chemistry
JO  - Aust. J. Chem.
Y1  - 1977
VL  - 30
IS  - 7
SP  - 1417
EP  - 1422
KW  - 
UR  - https://doi.org/10.1071/CH9771417 
N2  - The effect of pH changes and the presence of ligands on the uptake of lead and cadmium ions by three types of clay mineral (kaolinite, illite and montmorillonite) has been investigated.     In the absence of ligands, metal ion adsorption increases gradually with increasing pH until a threshold pH value is exceeded, whereupon total precipitation/sorption (attributed to formation of hydroxy species) occurs. With ligands present, the threshold point tends to shift to higher pH values, the magnitude of the effect depending on the stability of the metal complex formed. Adsorption of cationic metal complexes is subject to competition from charged protonated ligand species; anionic complexes are not sorbed. 
ER  -

