Dr. Khan became Professor in 2003 in the Department of Chemistry, Bangladesh University of Engineering and Technology (BUET), Dhaka-1000, Bangladesh. He has supervised 5 Ph.D., 6 M.Sc., and 32 M.Phil. students. His research interest focuses on synthesizing heterocyclic compounds through metal-mediated reactions, nanoparticle catalyst synthesis, and synthesis of polymer composites and ionic liquids. He is National Representative of Organic and Biomolecular Chemistry Division III of IUPAC), Fellow of IUPAC, Former Secretary-General of FACS, and General Secretary of the Bangladesh Chemical Society. He was also the convener of the Bangladesh Chemistry Olympiad and Scientific Observer of IChO. He has been a visiting Professor in International University Technology (IUT), Bangladesh University of Professional (BUP) and Military Institute of Technology (MIST) and President of the Chemistry Departmental Committee, Bangladesh Standard and Testing (BSTI).