Osman NS, Ismail ML, Sapawe N. Synthesis of Oil Palm Frond (OPF) Based Silica Nanomaterial via Sol-gel Method with Enhanced Phenol Removal . J. Chem. Eng. Ind. Biotechnol. [Internet]. 2021 Nov. 21 [cited 2025 Mar. 15];7(2):20-6. Available from: https://journal.ump.edu.my/jceib/article/view/6917