Epichlorohydrin-Crosslinked Nano-TiO₂/Plum Kernel Shell/Chitosan Hydrogel Beads for the Efficient Removal of Hexavalent Chromium from Aqueous Solutions. EPSTEM [Internet]. 2025 Oct. 30 [cited 2026 Feb. 8];36:1-10. Available from: https://epstem.net/index.php/epstem/article/view/1147