CuCo2S4/g-C3N4–x S-Scheme Heterojunction for Photothermal-Assisted Photocatalytic CO2 Reduction DOI

Fangde Liu,

Yanjie Song,

Renzhi Xiong

et al.

Inorganic Chemistry, Journal Year: 2025, Volume and Issue: unknown

Published: April 20, 2025

Photocatalytic conversion of CO2 into chemical fuels has emerged as a research hotspot, aiming to mitigate the rapid depletion fossil and alleviate global warming. However, inherent low carrier separation efficiency limited solar light utilization photocatalysts lead unsatisfactory efficiency. In this study, an appealing CuCo2S4/g-C3N4-x S-scheme heterostructure is successfully fabricated by simple polyol reflux method. Notably, nitrogen vacancies enhance Fermi level difference between CuCo2S4 g-C3N4-x, resulting in stronger interfacial built-in electric field. The full-spectrum strong optical absorption capability endows synthesized catalysts with superior light-harvesting property. photothermal effect-induced temperature increase accelerates cyclic process adsorption CO desorption on catalyst surface. Most importantly, charge transfer pathway ensures efficient photogenerated carriers. Thanks these synergistic benefits, exhibits exceptional photothermal-assisted photocatalytic reduction performance. Under simulated sunlight, average production rate reaches 24.64 μmol g-1 h-1, which 12.1 27.1 times higher than that g-C3N4 CuCo2S4, respectively. This study offers novel strategy for designing outstanding

Language: Английский

Regulating Asymmetric Charge Distribution in Cu2MoS4 Nanosheets for Enhanced Photocatalytic CO2 Reduction DOI Open Access
Bin Zhao, Xiaoming Qiu, Yu Song

et al.

Small, Journal Year: 2025, Volume and Issue: unknown

Published: March 4, 2025

Abstract Photocatalytic reduction of CO 2 to high‐value‐added chemicals represents a promising strategy for effective utilization, and rationally regulating the electronic structure catalyst is key enhancing photocatalytic performance. Herein, it demonstrated that in situ doping atomic indium into lattice Cu MoS 4 results remarkable enhancements A record gas product yield 104.1 µmol·g −1 ·h achieved under visible light irradiation (>420 nm), accompanied by generation rate 35.3 ethylene. Detailed experimental analyses density functional theory (DFT) calculations reveal low electronegativity atoms induces asymmetric charge redistribution near sites. This effect facilitates adsorption dissociation molecules at charge‐enriched Mo sites, as well subsequent intermediates ( * COCOH) toward ethylene formation. work advances understanding potential mechanism between active site performance, providing valuable insights fabricating advanced materials conversion solar fuels.

Language: Английский

Citations

0
In situ Doping Coupling With Vacancy Regulation Induced Strong Metal‐Support Interaction in Ni/CaTiO3 to Boost Supercharged Photothermal CO2 Methanation DOI Open Access

Zhimin Yuan,

Baokun Zhang, Xianglin Zhu

et al.

Advanced Functional Materials, Journal Year: 2025, Volume and Issue: unknown

Published: March 7, 2025

Abstract The “Solar Sabatier” reaction has emerged as a promising sustainable method for the CO 2 hydrogenation. development of advanced metal‐support catalysts based on Strong Metal‐Support Interaction (SMSI) offers significant advantages in activation and regulation selectivity. Herein, novel composite Ni/CaTiO 3 catalyst consisting Ni Ni‐doped CaTiO is synthesized utilized methanation. A noteworthy finding that incorporation into matrix instrumental formation oxygen vacancies establishment SMSI between . enhanced resulting from surface‐doped atoms not only facilitated effective interface contact metallic surface but also significantly improved migration efficiency hydrogen reduced barrier methanation optimized rate‐limiting step, all which are advantageous Consequently, exhibited extraordinary performance, achieving conversion rate 87.77%, CH 4 generation 3.12 mol g −1 h , ≈100% selectivity under ambient pressure conditions. This investigation lays groundwork design highly active understanding mechanisms underlying SMSI.

Language: Английский

Citations

0
All-organic ultrathin ionic-pyridine-COF/boron-doped-g-C3N4 heterojunction for CO2 photoconversion integrated with alcohol oxidation DOI

Haochun Yin,

Zhongyu Liu, Xudong Yan

et al.

Applied Catalysis B Environment and Energy, Journal Year: 2025, Volume and Issue: unknown, P. 125289 - 125289

Published: March 1, 2025

Language: Английский

Citations

0
CuCo2S4/g-C3N4–x S-Scheme Heterojunction for Photothermal-Assisted Photocatalytic CO2 Reduction DOI

Fangde Liu,

Yanjie Song,

Renzhi Xiong

et al.

Inorganic Chemistry, Journal Year: 2025, Volume and Issue: unknown

Published: April 20, 2025

Photocatalytic conversion of CO2 into chemical fuels has emerged as a research hotspot, aiming to mitigate the rapid depletion fossil and alleviate global warming. However, inherent low carrier separation efficiency limited solar light utilization photocatalysts lead unsatisfactory efficiency. In this study, an appealing CuCo2S4/g-C3N4-x S-scheme heterostructure is successfully fabricated by simple polyol reflux method. Notably, nitrogen vacancies enhance Fermi level difference between CuCo2S4 g-C3N4-x, resulting in stronger interfacial built-in electric field. The full-spectrum strong optical absorption capability endows synthesized catalysts with superior light-harvesting property. photothermal effect-induced temperature increase accelerates cyclic process adsorption CO desorption on catalyst surface. Most importantly, charge transfer pathway ensures efficient photogenerated carriers. Thanks these synergistic benefits, exhibits exceptional photothermal-assisted photocatalytic reduction performance. Under simulated sunlight, average production rate reaches 24.64 μmol g-1 h-1, which 12.1 27.1 times higher than that g-C3N4 CuCo2S4, respectively. This study offers novel strategy for designing outstanding

Language: Английский

Citations

0