Adsorption of Cd(II) using Polyacrylamide/Rice Husk HydrogelFarida Laila, Wina Yulianti, Ika Resmeiliana, Novia Amalia Sholeha and Mohammad FadhlurrahmanE3S Web Conf., 454 (2023) 02022DOI: https://doi.org/10.1051/e3sconf/202345402022