Engineering Built‐In Electric Field Microenvironment of CQDs/g‐C₃N₄ Heterojunction for Efficient Photocatalytic CO₂ Reduction

Advanced Science, Journal Year: 2024, Volume and Issue: 11(28)

Published: May 10, 2024

Abstract Graphitic carbon nitride (CN), as a nonmetallic photocatalyst, has gained considerable attention for its cost‐effectiveness and environmentally friendly nature in catalyzing solar‐driven CO 2 conversion into valuable products. However, the photocatalytic efficiency of reduction with CN remains low, accompanied by challenges achieving desirable product selectivity. To address these limitations, two‐step hydrothermal‐calcination tandem synthesis strategy is presented, introducing quantum dots (CQDs) forming ultra‐thin CQD/CN nanosheets. The integration CQDs induces distinct work function CN, creating robust interface electric field after combination. This facilitates accumulation photoelectrons region, providing an abundant source reduced electrons process. Remarkably, nanosheets exhibit average yield 120 µmol g −1 , showcasing outstanding selectivity 92.8%. discovery not only presents innovative pathway development high‐performance photocatalysts grounded non‐metallic materials employing but also opens new avenues versatile application prospects environmental protection sustainable cleaning energy.

Language: Английский

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Atmosphere Engineering of Metal-Free Te/C3N4 p-n Heterojunction for Nearly 100% Photocatalytic Converting CO2 to CO

Advanced Powder Materials, Journal Year: 2024, Volume and Issue: unknown, P. 100243 - 100243

Published: Sept. 1, 2024

Language: Английский

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Cutting-edge innovations in red carbon dots: Synthesis, perfection, and breakthroughs in optoelectronics and electrocatalysis

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 498, P. 155302 - 155302

Published: Aug. 29, 2024

Language: Английский

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Inductive effect of charge transfer in ferroelectrics and plasmonic Ag heterojunctions for enhanced CO2 photoreduction

Applied Physics Letters, Journal Year: 2025, Volume and Issue: 126(6)

Published: Feb. 10, 2025

Converting carbon dioxide into fuel and chemicals by utilizing solar energy represents a cutting-edge approach to recovery renewal. The transfer behavior of photogenerated electrons built-in electric field photocatalysts greatly affect the efficiency photoreduction reaction. Herein, heterostructures composed bismuth sodium titanate (BNT) ferroelectrics silver nanoparticles (Ag NPs) are constructed promote photocatalytic CO2 performance. large spontaneous polarization BNT optimizes dynamics photoinduced holes causes band bending with strong intrinsic field. With aid Ag NPs, BNT@xAg heterojunctions exhibit intensified light absorption due phenomenon localized surface plasmon resonance (LSPR), which extends visible spectrum strengthens charge transfer. modified catalysts demonstrate improved separation capacity notably prolonged electron lifetime up 40.95 ns. synergistic effect LSPR significantly boosts together ultrahigh CO product selectivity, is outstanding among ferroelectric other representative photocatalysts. This study elucidates enhancement mechanism plasmonic decorated offers an alternative route for design efficient catalysts.

Language: Английский

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Carbon dioxide, global boiling, and climate carnage, from generation to assimilation, photocatalytic conversion to renewable fuels, and mechanism

The Science of The Total Environment, Journal Year: 2025, Volume and Issue: 965, P. 178629 - 178629

Published: Jan. 28, 2025

Language: Английский

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Enhanced photocatalytic CO₂ reduction to CH₄via restorable surface plasmon and Pd_n–W^δ+ synergetic sites

Inorganic Chemistry Frontiers, Journal Year: 2024, Volume and Issue: 11(15), P. 4576 - 4589

Published: Jan. 1, 2024

The integration of W δ + –Pd n synergetic sites and plasmonic properties in the preactivated Pd/W 18 O 49 catalyst results excellent performance for photocatalytic CO 2 reduction.

Language: Английский

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Review on photocatalytic nitrogen fixation by local surface plasmon

International Journal of Hydrogen Energy, Journal Year: 2024, Volume and Issue: 87, P. 686 - 698

Published: Sept. 10, 2024

Language: Английский

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Snowflake-like In2S3/Cu2S heterojunction for simultaneous photocatalytic persulfate oxidation of tetracycline hydrochloride and CO2 photoreduction

Separation and Purification Technology, Journal Year: 2024, Volume and Issue: 357, P. 130242 - 130242

Published: Oct. 24, 2024

Language: Английский

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Asymmetric Associate Configuration of Nb Single Atoms Coupled Bi–O Vacancy Pairs Boosting CO₂ Photoreduction

ACS Catalysis, Journal Year: 2024, Volume and Issue: unknown, P. 17818 - 17824

Published: Nov. 18, 2024

Precisely designing the atomic coordination structure of catalytic center is highly desired to lower energy barrier CO2 photoreduction. The present work shows that engineering Nb single atom coupled Bi–O vacancy pairs (VBi–O) into Bi24O31Br10 (BOB) layers can create a preferential local asymmetric structure. This configuration result in stronger polarization electric field and thus prolong carrier lifetime, as proved by ultrafast transient absorption spectroscopy. Meantime, this unique SA-VBi–O associate favors formation strong chemical interaction between key *COOH intermediate center, lowering rate-limiting step. Benefiting from these features, high CO generation rate 76.4 μmol g–1 h–1 for photoreduction be achieved over BOB pure water, roughly 5.4 92.7 times higher than those or bulk BOB, respectively. discloses an important paradigm defect associates optimize photocatalysis performance.

Language: Английский

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Copper Vacancy and LSPR‐Activated MXene Synergistically Enabling Selective Photoreduction CO₂ to Acetate

ChemSusChem, Journal Year: 2024, Volume and Issue: 17(12)

Published: Feb. 10, 2024

Photocatalytic CO

Language: Английский

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