Maziarz P, Prokop A, Matusik J. A comparative study on the removal of Pb(II), Zn(II), Cd(II) and As(V) by natural, acid activated and calcined halloysite. geol [Internet]. 2015 Aug. 5 [cited 2025 Mar. 30];41(1):108. Available from: https://journals.agh.edu.pl/geol/article/view/1445