Surface Nonpolarization of g‐C3N4 by Decoration with Sensitized Quantum Dots for Improved CO2 Photoreduction

• DOI: 10.1002/cssc.201802065
• Publication Date: 2018-10-12T12:10:34Z
• Authors: Huajun Feng; Qiaoqi Guo; Yingfeng Xu; Ting Chen; Yuyang Zhou; Yigang Wang; Meizhen Wang; Dongsheng Shen
• Keywords: 13. Climate action; 7. Clean energy; 01 natural sciences; 0104 chemical sciences

Photocatalytic conversion of CO2 can provide a solution for simultaneously addressing global warming and solar fuel generation. However, its applicability is presently limited by the unsatisfactory photoconversion efficiency state-of-art photocatalysts. In this regard, enhancing adsorption through surface modification could be an efficient way to improve efficiency. Herein, doping nonpolar carbon quantum dots (CQDs) onto g-C3 N4 reported construction metal-free heterojunction photocatalyst (CQDs/g-C3 ). CQDs offer several advantages such as band-gap reduction electron-withdrawing effect light absorption photocarrier separation study reveals that also adsorption, photoinduced H2 production, reaction kinetics, alter photoreduction pathways generate CH4 . Consequently, CQDs/g-C3 six times more CO without detectable compared pristine , under similar conditions. Therefore, demonstrates promising strategy activation, subsequent