Preparation of MoO3-x Modified Honeycomb-Like Carbon Nitride and Its Photothermal Synergistic Catalytic CO2 Reduction Performance
LI Chenlu1, WANG Yanan1,2, XU Song1, LI Zhongyu1,2,3
1. Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China;
2. Advanced Catalysis and Green Manufacturing Collaborative Innovation Center, Changzhou University, Changzhou 213164, China;
3. School of Environmental Science and Engineering, Changzhou University, Changzhou 213164, China
Abstract： Introducing thermal energy into traditional photocatalytic CO2 reactions is a novel method for enhancing conversion efficiency. This study successfully prepared oxygen vacancy defect MoO3 (MoO3-x) modified honeycomb-like carbon nitride (MNCN) composite catalysts with various ratios by uniformly loading MoO3-x onto the surface of honeycomb-like carbon nitride (NCN) using a one-pot synthesis method. The composite materials were characterized by X-ray diffraction (XRD), scanning electron microscope (SEM), Ultraviolet-visible diffuse reflectance spectroscopy (UV-vis DRS) and Fourier transform infrared spectroscopy (FTIR) spectroscopy. Under full-spectrum illumination, the MNCN-1.0 composite exhibited an excellent performance, and yields of CO and CH4 reached 25.35μmol/(g·h) and 1.80μmol/(g·h) in the photothermal catalytic CO2 reaction. This is attributed to the unique properties of MoO3-x which is able to enhance the reaction temperature in full-spectrum reactions, promoting the synergistic interaction between the temperature field and the light field and thereby improving the efficiency of photocatalysis.
. Preparation of MoO3-x Modified Honeycomb-Like Carbon Nitride and Its Photothermal Synergistic Catalytic CO2 Reduction Performance[J]. Chemical Reaction Engineering and Technology, 2024, 40(1): 10-18.
