Sajid Ali Ansari received his MS in 2012 from Zakir Husain College of Engineering & Technology, Aligarh Muslim University, Aligarh, India and PhD in 2015 from Yeungnam University, South Korea. Currently, he is working as an Assistant Professor at College of Science, King Faisal University, Kingdom of Saudi Arabia. Before joining King Faisal University he worked as Research Professor at the Department of Energy and Materials Engineering, Dongguk University, Seoul, South Korea and School of Chemical Engineering, Yeungnam University, Daegu, South Korea. His research area includes synthesis of metal nanoparticles and nanocomposites using electrochemically active biofilms, band gap engineering of semiconductor metal oxide nanoparticles for visible light photocatalysis, design, and development of electrode materials for supercapacitor, DSSC, and microbial fuel cells applications.