Application of South African heulandite (HEU) zeolite for the adsorption and removal of Pb²⁺ and Cd²⁺ ions from aqueous water solution: Experimental and computational study.

ABSTRACT: The capacity of South African Heulandite (HEU) zeolite to remove Pb²⁺ and Cd²⁺ ions from aqueous solution was investigated using batch experiments and molecular simulations studies. The effect of different factors on the adsorption of these ions onto the zeolite was investigated; contact time, initial metal ion concentration and the amount of HEU adsorbent. Molecular simulations was done using Monte Carlo and density functional theory. Experimental results obtained indicate that the maximum adsorption for the two ions occur at pH 5 and after 240 min of contact time. The percent removal based on contact time of Pb²⁺ and Cd²⁺ ions from water by the heulandite zeolite were 99.7 and 76.7 %, respectively. The adsorption of two metal ions

SUBMITTER: Wanyonyi FS 

PROVIDER: S-EPMC11324938 | biostudies-literature | 2024 Jul

REPOSITORIES: biostudies-literature