Dr. Muhammad Bilal Tahir has PhD in Physics with specialization in Material Science and Nanotechnology, from University of Gujrat, Gujrat. He has completed his MSc and MPhil from University of Engineering and Technology, Lahore Pakistan. He has published more than 100 papers and many book chapters on the topics of photocatalysis, renewable energy, alternative fuels, waste-to-energy, catalytic and resource recovery. Dr. Tahir is serving as editor/guest editor in several special issues Current analytical chemistry, Frontiers in Energy Research and numerous others.  He has published few books with International Publishers Springer/Elsevier and many book with local publishers. He has been actively involved in community services and consultation to the various international organizations for providing sustainable solutions for energy and waste-related issues.