Amit K Dutta
Indian Institute of Engineering Science and Technology, India
Title: Single source precursor approach to green synthesis of metal oxide and sulfide semiconducting nanomaterials for utilization in environmental chemistry and medical diagnostics
Biography
Biography: Amit K Dutta
Abstract
This presentation reports simple, green and efficient synthesis of nano-scaled inorganic semiconducting materials such as metal oxide, sulfide and their utilization in environmental chemistry and medical diagnostics. Semiconducting nanomaterials as catalyst carriers is very promising due to their large surface to volume ratio, high catalyst loading capacity, outstanding stability and environmentally–friendly materials. In recent years, contamination of water by non-biodegradable organic pollutants is a serious and widespread issue. So the development of facile, cheap and green methods for treatment of organic pollutants has been a focal subject in the field of environmental science and technology. Different metal oxides and sulfides such as Fe2O3, Fe3O4, CuO, ZnO, FeS, CdS, ZnS, CuS etc. have been synthesized through simple, cost-effective single source precursor approach and have been found to exhibits visible–light–driven catalytic activity for the degradation of organic pollutants in the waste-water treatment plant. Iron oxide nanoparticles are the most promising owing to the presence of their interesting magnetic properties and were separated at the end of the reaction by their attraction to a magnetic field which is much easier than by cross–flow filtration and centrifugation. Besides, numerous efforts have been paid to develop an organic synthesis process be more simple, green, and efficient using nanomaterial-based visible-light driven photo-catalytic activity. In the field of medical diagnostic, these inorganic nanomaterials are used to construct glucose biosensor for precise monitoring of the human glucose level. Non–enzymatic electrochemical sensor has been fabricated by immobilizing the inorganic nanomaterials on the surface of glassy carbon electrode for detection and estimation of hydrogen peroxide in human urine.