Carrier-controlled Strategies for Efficient Photocatalysts

Liqiang JING

School of Chemistry and Materials Science, Heilongjiang University

Abstract: It is highly desired to improve the photocatalytic performance for producing solar fuels. Herein, two carrier-controlled strategies have been successfully developed for efficient photocatalysis as follows. Firstly, the surface polarization by modifying negative anions, like [PO4]3- and Cl-, could trap positive holes so as to improve the photocatalytic activity for water oxidation and CO2 conversion. Secondly, the proper-level-energy platform by coupling wide-bandgap nano-oxides, like TiO2, could accept the excited proper-level-energy electrons from the narrow-bandgap nano-oxides, like BiVO4 and Fe2O3, and g-C3N4, so as to prolong the carrier lifetime and thereby improve the visible-light photocatalytic activities for H2 evolution and CO2 conversion. Meanwhile, the mechanism insights have been explored in details. These works would provide feasible routes to improve the photocatalysis for solar fuels.

Biography:  Dr. Liqiang JING is a full Professor of physical chemistry in Heilongjiang University in Harbin City, China. He got a Ph.D. degree in environmental engineering from Harbin Institute of Technology in 2003, and completed a postdoctoral programme in physical chemistry at Jilin University from 2004 to 2006. Currently, he leads a research group composed of about 30 M.S. and Ph.D. postgraduates. His recent research interest is to develop efficient photocatalytic approaches to solar energy conversion and utilization by harnessing solar energy to produce molecular fuels and to degrade environmental pollutants, mainly by means of steady- and transient- surface photovoltage techniques to deep reveal the photogenerated charge dynamic processes. As the first and/or corresponding author, he has published over 120 professional papers in the international SCI journals, such as “Chem Soc Rev”, “Energy Environ Sci”, “Adv Energy Mater”, “Chem Commun”, “Appl Catal B”, “ACS Catal” and “J Phys Chem C”. These papers have been positively cited for more than 3200 times in total by others in the SCI journals. He has been one of Most Cited Chinese Researchers (Elsevier) in recent three years, and is also a distinguished Changjiang Scholar Professor in Environmental Chemistry now.