Ray received his Ph.D. degree from the Ohio State University, U.S, following two years postdoctoral training in Stockholm University, Sweden. He took up a faculty position at Central South University, China, where he is now a full professor. His research topics cover a diverse set of organic contaminants related investigations. He is interested in understanding how to remove trace organic contaminants using advanced oxidation technologies, how to develop different modelling tools to predict radical reactivity, and how organic contaminants are accumulated in aquatic organisms. He has published more than 80 SCI papers in various journals, 8 of which were published in Environmental Science & Technology, 6 in Water Research. There are 15 papers selected as ESI (Essential Science Indicator) 1% highly cited papers, 3 as ESI 0.1% hot papers, 1 as top 10 highly cited paper in International Journal of Quantum Chemistry, and 1 as top 10 highly cited paper in Current Opinion in Chemical Engineering. His h-index is 36 (Google Scholar). He was awarded for excellent reviewers for Water Research, Environmental International, Chemical Engineering Journal, Journal of Hazardous Materials, Science of the Total Environment, Chemosphere, Environmental Science: Process & Impact, and Water, Air & Soil Pollution. He also severs as associate editor for Environmental Chemistry Letters (IF = 7.36), editorial board for Chemical Engineering Journal (IF = 10.6), Process Safety and Environmental Protection (IF=4.96), Scientific Reports (IF=3.98), and Journal of Hunan University.
The Ohio State University  Environmental Engineering  Doctoral degree
The Ohio State University  Environmental Science  Master's degree
RCEES, Chinese Academy of Sciences  Environmental Science  Master's Degree
Central South University School of Metallurgy and Environment Professor
Central South University School of Metallurgy and Environment Associate Professor
Central South University School of Metallurgy and Environment Assistant Professor
Stockholm Unviersity Environmental Science and Analytical Chemistry Postdoc Researcher