Fatma A. Mohammed, Sara H. Abdullah, Essam A. Kishar, Doaa A. Ahmed, Nourhan N. Kassem. "Highly effective sequestration of Ni(II) and Cr(III) ions from aqueous solution using foamed and non-foamed metakaolin based geopolymer." Scientific Reports, 2025. doi:10.1038/s41598-025-24676-3