@article{ART003273862},
author={Zhang Jun and Wang Wei and Yang Yue and Yan Yan and Yan Yongsheng and Zhu Zhi},
title={N-doping of TiO2 for enhanced CO2 photocatalytic reduction and research on reaction mechanisms},
journal={Carbon Letters},
issn={1976-4251},
year={2025},
volume={35},
number={5},
pages={2215-2226},
doi={10.1007/s42823-025-00916-4}
TY - JOUR
AU - Zhang Jun
AU - Wang Wei
AU - Yang Yue
AU - Yan Yan
AU - Yan Yongsheng
AU - Zhu Zhi
TI - N-doping of TiO2 for enhanced CO2 photocatalytic reduction and research on reaction mechanisms
JO - Carbon Letters
PY - 2025
VL - 35
IS - 5
PB - Korean Carbon Society
SP - 2215
EP - 2226
SN - 1976-4251
AB - Photocatalytic reduction of CO2 into fuels offers a promising avenue to tackle present energy challenges and mitigate global warming. At present, TiO2 has been widely used in photocatalytic CO2 reduction reactions, and element doping can optimize the band structure of TiO2 to improve the efficiency of photocatalytic CO2 reduction. In this work, TiO2 doped with different content of N was prepared using TiN as the precursor through a simple one-step calcination method. Under optimized conditions, the optimal CO yield of the modified photocatalyst is 41.1 μmol g−1 h−1, which is 8 times higher than that of p25 type TiO2. Density functional theory (DFT) calculations confirmed that N-doping can reduce the band gap of TiO2 and decrease the Gibbs free energy of CO2 reduction reaction. In-situ-XPS indicated that N-doping can enhance the activation of CO2 by enriching photo generated electrons. Additionally, In-situ-FTIR spectra were employed to detect intermediates and track variations in the consumption of H2O and CO2, providing deeper insights into the mechanism responsible for enhancing efficiency. Our work addresses the deficiencies of the past and provides more detailed theoretical insights for the accelerated photocatalytic reduction of CO2 by N-doping TiO2.
KW - Photocatalysis;CO2 reduction;N doping;TiO2;Density functional theory
DO - 10.1007/s42823-025-00916-4
ER -
Zhang Jun, Wang Wei, Yang Yue, Yan Yan, Yan Yongsheng and Zhu Zhi. (2025). N-doping of TiO2 for enhanced CO2 photocatalytic reduction and research on reaction mechanisms. Carbon Letters, 35(5), 2215-2226.
Zhang Jun, Wang Wei, Yang Yue, Yan Yan, Yan Yongsheng and Zhu Zhi. 2025, "N-doping of TiO2 for enhanced CO2 photocatalytic reduction and research on reaction mechanisms", Carbon Letters, vol.35, no.5 pp.2215-2226. Available from: doi:10.1007/s42823-025-00916-4
Zhang Jun, Wang Wei, Yang Yue, Yan Yan, Yan Yongsheng, Zhu Zhi "N-doping of TiO2 for enhanced CO2 photocatalytic reduction and research on reaction mechanisms" Carbon Letters 35.5 pp.2215-2226 (2025) : 2215.
Zhang Jun, Wang Wei, Yang Yue, Yan Yan, Yan Yongsheng, Zhu Zhi. N-doping of TiO2 for enhanced CO2 photocatalytic reduction and research on reaction mechanisms. 2025; 35(5), 2215-2226. Available from: doi:10.1007/s42823-025-00916-4
Zhang Jun, Wang Wei, Yang Yue, Yan Yan, Yan Yongsheng and Zhu Zhi. "N-doping of TiO2 for enhanced CO2 photocatalytic reduction and research on reaction mechanisms" Carbon Letters 35, no.5 (2025) : 2215-2226.doi: 10.1007/s42823-025-00916-4
Zhang Jun; Wang Wei; Yang Yue; Yan Yan; Yan Yongsheng; Zhu Zhi. N-doping of TiO2 for enhanced CO2 photocatalytic reduction and research on reaction mechanisms. Carbon Letters, 35(5), 2215-2226. doi: 10.1007/s42823-025-00916-4
Zhang Jun; Wang Wei; Yang Yue; Yan Yan; Yan Yongsheng; Zhu Zhi. N-doping of TiO2 for enhanced CO2 photocatalytic reduction and research on reaction mechanisms. Carbon Letters. 2025; 35(5) 2215-2226. doi: 10.1007/s42823-025-00916-4
Zhang Jun, Wang Wei, Yang Yue, Yan Yan, Yan Yongsheng, Zhu Zhi. N-doping of TiO2 for enhanced CO2 photocatalytic reduction and research on reaction mechanisms. 2025; 35(5), 2215-2226. Available from: doi:10.1007/s42823-025-00916-4
Zhang Jun, Wang Wei, Yang Yue, Yan Yan, Yan Yongsheng and Zhu Zhi. "N-doping of TiO2 for enhanced CO2 photocatalytic reduction and research on reaction mechanisms" Carbon Letters 35, no.5 (2025) : 2215-2226.doi: 10.1007/s42823-025-00916-4
