Optimization of Ostrich Eggshell Catalyst in Transesterification Using Waste Cooking Oil via Response Surface Methodology

by Yie Hua Yie Tan, Mohammad Omar Abdullah, Jibrail Kansedo, Agus Saptoro, Cirilo Nolasco Hipolito
Published 2018-09-01

Adsorption Equilibrium for Heavy Metal Divalent Ions (Cu2+, Zn2+, and Cd2+) into Zirconium-Based Ferromagnetic Sorbent

by Agnes Yung Weng Lee, Soh Fong Lim, S. N. David Chua, Khairuddin Sanaullah, Rubiyah Baini, Mohammad Omar Abdullah
Published 2017-01-01