Low-Temperature Photothermal CO2-to-CO Conversion from Flue Gas Using a g-C3N4/TiO2/MXene Heterojunction with 100% Selectivity

Key Points

• The study aims to develop a highly selective catalyst for converting CO2 to CO using photothermal energy.
• Synthesis of g-C3N4/TiO2/MXene heterojunction via sol-gel process.
• Utilization of residual heat from flue gas combined with sunlight for CO2 reduction.
• Assessment of catalyst performance for CO production.
• Achieved 100% selectivity for CO production.
• Demonstrated efficient CO2 conversion under low-temperature conditions.
• Showed significant utilization of residual heat from industrial processes.