Vol. 2 No. 2 (2025): June

This issue presents 6 studies focused on sustainable materials and environmental engineering. Topics include electrocoagulation treatment of suspended particles in UMK Lake, guanine-modified rice husk silica for advanced material characterisation, and hydrogel optimisation from banana stem cellulose. Other papers explore gold cyanide recovery using resin and activated carbon, anatomical and chemical analysis of Leucaena leucocephala wood for pulp applications, and the effect of banana peel–TiO₂ hybrid fillers on polymer weathering. Together, these works highlight Malaysia’s innovation in bio-based solutions and resource recovery.