Ahmadi, H. .; Duan, Y. .; Sharifi, H. .; Sadat, S. H. .; Dawood, M. D. .; Hussain, S. .; Habibi, S. S. . Comparison of Modifiers for Coal Gangue Biochar Modification to Improve the Absorption of Heavy Metals from Aqueous Solution. Trends Sci 2023, 20, 5447.