Removal behavior of Pb2+, Cd2+, Zn2+ from wastewater of lead, zinc mining – Cho Don, Bac Kan by halloysite clay. Vietnam j. catal. adsorp. [Internet]. 2024 Mar. 15 [cited 2024 Nov. 18];12(2):92-9. Available from: https://jca.edu.vn/index.php/jca/article/view/164