Mohd. Rafatullah is a Senior Lecturer of Environmental Technology in the School of Industrial Technology, Universiti Sains Malaysia, Malaysia. He completed his education; Ph. D. in Environmental Chemistry, Master of Science in Analytical Chemistry and Bachelor of Science in Chemistry from Aligarh Muslim University, Aligarh, India. His research interest is in the areas of environmental pollutants and their safe removal, preparation of various nanomaterials to prevent the environment, water and wastewater treatment, adsorption and ion-exchange, Analytical and Instrumental Analysis etc. He has published numerous reviewe articles and research papers in peer-reviewed journals and served as member of editorial boards of several peer-reviewed international journals.