Ajay Kumar Mishra is Professor at the Nanotechnology and Water Sustainability Research Unit at College of Science, Engineering & Technology, University of South Africa, Florida Science Campus, South Africa and also a “Fellow member at “Royal Society of Chemistry UK. He received his M. Phil. and Ph.D. degrees in 2003 and 2007, respectively, from The University of Delhi, India. In addition, he was appointed as “Senior Lecturer in October 2009 at the Department of Applied Chemistry, University of Johannesburg, South Africa where he was promoted to “Associate Professor in November 2011 until December 2014. Recently, he was appointed by University of South Africa as “Full Professor since January 2015. He is also working as “Adjunct Professor at Jiangsu University, China. He has also developed a number of collaborations worldwide. He also served as Associate Editor as well as member of the editorial board of many peer-reviewed international journals. He is also serving as member advisory board of a number of international scientific societies, conferences and workshops. His research interest involves in the broader areas of Nanoscience/Nanotechnology; Materials Science; Polymers; Composite/Nanocomposites; Photocatalysts and Water Research. He is also actively involved in the area of nanotechnology towards the development of smart materials for various applications in the field of materials science and water research. He supervises students involved in the nanotechnology and water treatment research in projects involving finding treatments on organic, inorganic pollutants using synthetic and wastewater solutions. Pardeep Singh is Professor and Head at the School of Advanced Chemical Sciences, Shoolini University, Solan, India. He is specialized in physical chemistry and heads a lab of research scholars who work on photocatalysis with the aim of generating new knowledge on graphene-based photocatalytic materials and processes to develop novel de-pollution treatments with enhanced efficiency and pilot-scale applicability. He is also exploring the generation of bio-waste material-based activated carbon for adsorption-based removal of aqueous phase pollutants. Pankaj Raizada is an Associate Professor of the Advance School of Chemical Sciences, Shoolini University of Biotechnology and Management Sciences Solan (H.P.), India. She received her PhD from Vikram University, Ujjain (M.P.), India in 2010. She was awarded the DST Young Scientist Award in 2015. Her research interest involves designing of new advanced photocatalytic materials (metal free carbonaceous materials) for environmental and energy applications. Her research group published around 87 papers, 22 patents, and 6 book chapters in the area of photocatalysis. Dr S. Vadivel, JSPS Fellow, Department of Civil and Environmental engineering, Tokyo institute of Technology, Japan & Assistant Professor, Department of Chemistry, PSG College of Technology, Coimbatore, Tamilnadu, India. He is one of the renowned energetic researcher in the field of energy and environment. Especially, well known for his expertise in the field of photocatalysis and supercapacitors. He got Ranked in Top 2% Scientists worldwide reported by Stanford University (http://bit.ly/391Gn5Y). He successfully completed his doctoral studies in the topic “Synthesis of Bismuth Based Composites for Environmental and Energy Applications in Anna University, Chennai. He has been awarded with the project in early career research award scheme by DSTSERB, India and it has been successfully completed. As an expertise in the field of photocatalysis, he acts as reviewer in various international peer reviewed journals. As a feather to his cap, he also acquired prestigious PIFI-CAS fellowship and now he has been awarded with the JSPS fellowship under the supervision of prof. Manabu Fuji, Tokyo Institute of Technology, Japan. He has 63 international peer reviewed journals to his name along with 8 book chapters. Dr. Rangabhashiyam Selvasembian is currently working as Associate Professor in the Department of Environmental Science and Engineering, School of Engineering and Sciences, SRM University-AP, India. Previously worked in the Department of Biotechnology, School of Chemical & Biotechnology, SASTRA Deemed University, India. He received his Doctor of Philosophy degree from National Institute of Technology Calicut, India. He was awarded Post-Doctoral Fellowship by Max Planck Institute for Dynamics of Complex Technical Systems, 2015, Germany. He was further awarded the National-Post Doctoral Fellowship from SERB-DST, 2016-2018, India. Dr Selvasembian was awarded as Young Scientist by DST, India for the BRICS Conclave held in Durban, 2018, South Africa and was the recepient of Hiyoshi Young Leaf Award from Hiyoshi Ecological Services, Hiyoshi Corporation, 2018, Japan. His major research interests are bioremediation and waste?water treatment. He is Editorial Board Member in Separation & Purification Reviews, Scientific Reports, Biomass Conversion and Biorefinery and Environmental Management. He is also serving as Associate Editor in International Journal of Environmental Science and Technology, IET Nanobiotechnology, Frontiers in Environmental Chemistry and also as an Academic Editor for Adsorption Science and Technology. He has published more than 100 peer reviewed interna?tional research articles and contributed several book chapters. He is editing books from prestigious publishers such as Elsevier, Wiley, CRC and Springer. Recently Dr Selvasembian was listed in Top 2% most cited research scientist in the world as per data published by Stanford University USA.