Zhong Wenying and Xu Bo of China Pharmaceutical University have made the latest achievements in the research of carbon nitride based photocatalysts

Recently, Professor Zhong Wenying and Associate Professor Xu Bo of School of science of China Pharmaceutical University have made the latest achievements in the field of carbon nitride based photocatalyst research The research was published on Journal of Materials Chemistry A (DOI: 10.1039 / c9ta03646f), an authoritative journal in the field of materials chemistry, under the title of "heptazine based borous graphic carbon nitride: a visible light driven photocatalyst for water splitting" Xu Bo, associate professor of physics teaching and research group, and Zhong Wenying, Professor of pharmaceutical analysis, are co authors Liu Bin, 2019 master's degree graduate of our university, is the first author As a kind of non-metallic semiconductor, carbon nitride g-c3n4 with graphene structure can generate many kinds of active groups (such as superoxide radicals, hydroxyl radicals, etc.) under the condition of light irradiation, which can rapidly oxidize and decompose the pollutants in the environment It is a cheap and effective way High efficiency photocatalyst without secondary pollution However, due to the band gap width (2.7 EV), the utilization ratio of visible light is the main factor that restricts its popularization and utilization The research team of Professor Zhong Wenying and Associate Professor Xu Bo of the University of science first analyzed the band structure of g-c3n4, designed a variety of two-dimensional materials with carbon nitride structure through theory, and screened them, and finally found that a two-dimensional material with g-c6n7 component has a smaller forbidden bandwidth (1.9) EV), which has response to all visible light, is a potential visible light catalyst In this work, g-c6n7, a carbon nitride based photocatalyst, which can respond to all visible light, is reported for the first time, which provides a new idea for the search and design of new carbon nitride based photocatalysts This research was supported by the general program of NSFC and the "double first class" innovation team program of China Pharmaceutical University.