Dr. Aleksey Hlopitskiy, Associate Professor of the Department of Inorganic Matters Technology and Ecology, Ukrainian State University of Chemical Technology, Ukraine
E-mail: oxideZr@rambler.ru

Dr. Meenakshi Singh, Professor, Department of Chemistry, School of Basic and Applied Sciences, Galgotias University, India
Email: meenakshi.pundir@galgotiasuniversity.edu.in, gzbpundir86@gmail.com