Synthesis and characterization of cobalt-based catalysts for selective oxidation of styrene and photodegradation of methylene blue / by Mohamad Haqzim Ayob, 1989-, author 521049, Hadi Nur, supervisor 378090, Mustaffa Shamsuddin, supervisor 189976, Sheela Chandren, supervisor 282559, Fakulti Sains 8004