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

Yang Meng; Wen Li; Silvia Zamponi; Yongpeng Ma; Weifeng Zhou; Hongxia Chao; Shi Tang; Mario Berrettoni; H. Y. Zhang

doi:10.1039/d6gc00125d

January 1, 2026Green Chemistry

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

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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.

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Abstract

Via a sol-gel route, we synthesized a ternary type-II/Schottky heterojunction g-C3N4/TiO2/MXene (GTM) photothermal catalyst that harnessed residual heat from industrial flue gas together with sunlight to achieve efficient CO2 reduction...

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Meng et al. (2026) studied this question.

synapsesocial.com/papers/69d5f05d74eaea4b11a79d47 https://doi.org/10.1039/d6gc00125d

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

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Abstract

Discussion

Cite This Study

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

Key Points

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Abstract

Discussion

Cite This Study

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