Professor at Chemical Sciences, FoS, Universiti Brunei Darussalam, Brunei Darussalam. Worked in India, Ethiopia, Oman, and South Korea and has demonstrated excellence in teaching and research. Research expertise: Nanoparticles, nanocomposites, and graphene synthesis using green and novel methods. Band gap engineering of metal oxides and chalcogenides using green synthesis for photocatalysis, photoelectrodes, sensors, H2 production, and biological applications. Collaborators are welcome!