Carbon quantum dots and interfacial chemical bond synergistically modulated S-scheme Mn0.5Cd0.5S/BiOBr photocatalyst for efficient water purification

Journal of Material Science and Technology, Год журнала: 2024, Номер 214, С. 255 - 265

Опубликована: Июль 18, 2024

Язык: Английский

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Near-Infrared-Responsive Photocatalytic CO₂ Conversion via In Situ Generated Co₃O₄/Cu₂O

ACS Nano, Год журнала: 2023, Номер 17(11), С. 10976 - 10986

Опубликована: Май 24, 2023

Photocatalytic CO2 conversion to fuels is a promising strategy for achieving global carbon neutrality. However, infrared light, which accounts ∼50% of the full sunlight spectrum, has not yet been effectively utilized via photocatalysis. Here, we present an approach directly power photocatalytic reduction using near-infrared light. This light-responsive process occurs on in situ generated Co3O4/Cu2O photocatalyst with nanobranch structure. Photoassisted Kelvin probe force microscopy and relative measurements demonstrate increase surface photovoltage after illumination by We also find that Cu(I) this could facilitate formation *CHO intermediate, thus enabling high-performance CH4 production yield 6.5 μmol/h selectivity 99%. Moreover, perform practically oriented direct solar-driven under concentrated achieve fuel 12.5 μmol/h.

Язык: Английский

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Novel BiOBr/Bi2S3 high-low junction prepared by molten salt method for boosting photocatalytic degradation and H2O2 production

Journal of Material Science and Technology, Год журнала: 2023, Номер 155, С. 148 - 159

Опубликована: Март 17, 2023

Язык: Английский

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Recent progress of low-dimensional metal sulfides photocatalysts for energy and environmental applications

Materials Today Catalysis, Год журнала: 2023, Номер 1, С. 100001 - 100001

Опубликована: Март 17, 2023

Язык: Английский

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Molecular‐Level Regulation Strategies Toward Efficient Charge Separation in Donor−Acceptor Type Conjugated Polymers for Boosted Energy‐Related Photocatalysis

Advanced Energy Materials, Год журнала: 2023, Номер 14(5)

Опубликована: Дек. 11, 2023

Abstract The development of efficient photocatalysts for artificial photocatalytic energy conversion is an intriguing strategy. Promisingly, conjugated polymers (CPs) have been actively investigated as alternatives to traditional inorganic semiconductors photocatalysis due their molecularly tunable optoelectronic properties, thus providing a great platform molecular design. Incorporating donor (D) and acceptor (A) units into the backbone CPs ensures adequate D−A interface, which essential facilitating charge separation. This approach also allows bandgaps leading significant progress in conversions recent years. Here, fundamentals D–A type are initially outlined, followed by advanced experimental methods density functional theory (DFT) calculations investigating carrier dynamics. Then, detailed exposition synthetic strategies carried out. Their extensive applications diverse energy‐related conversions, such hydrogen evolution, oxygen overall water splitting, CO 2 reduction, N H O evolution comprehensively presented. review provides new comprehensive insights molecular‐level design catalysts boosted conversion, expected further advance photocatalysis.

Язык: Английский

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Mechanism of electrocatalytic CO2 reduction reaction by borophene supported bimetallic catalysts

Journal of Colloid and Interface Science, Год журнала: 2024, Номер 659, С. 959 - 973

Опубликована: Янв. 12, 2024

Язык: Английский

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MXene‐Regulated Metal‐Oxide Interfaces with Modified Intermediate Configurations Realizing Nearly 100% CO₂ Electrocatalytic Conversion

Angewandte Chemie International Edition, Год журнала: 2023, Номер 62(35)

Опубликована: Июль 5, 2023

Electrocatalytic CO2 reduction via renewable electricity provides a sustainable way to produce valued chemicals, while it suffers from low activity and selectivity. Herein, we constructed novel catalyst with unique Ti3 C2 Tx MXene-regulated Ag-ZnO interfaces, undercoordinated surface sites, as well mesoporous nanostructures. The designed Ag-ZnO/Ti3 achieves an outstanding conversion performance of nearly 100% CO Faraday efficiency high partial current density 22.59 mA cm-2 at -0.87 V versus reversible hydrogen electrode. electronic donation Ag up-shifted d-band center relative Fermi level within interfaces contributes the selectivity CO. is highly correlated dominated linear-bonded intermediate confirmed by in situ infrared spectroscopy. This work enlightens rational design metal-oxide regulation MXene for high-performance electrocatalysis beyond reduction.

Язык: Английский

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Synergistic effect of oxygen species and vacancy for enhanced electrochemical CO2 conversion to formate on indium oxide

eScience, Год журнала: 2024, Номер 4(3), С. 100246 - 100246

Опубликована: Фев. 2, 2024

Indium-based oxides are promising electrocatalysts for producing formate via CO2 reduction reaction, in which *OCHO is considered the key intermediate. Here, we identified that *COOH pathway could be preferential to produce on In2O3 of In/In2O3 heterojunction due synergistic effect oxygen species and vacancy. Specifically, *CO2 were observed related production by situ Raman spectroscopy. The theoretical calculations further demonstrated energy barrier formation was decreased presence vacancy, similar or lower than In surface. As a result, selectivity over 90% obtained prepared with 343 ± 7 mA cm–2 partial current density. Furthermore, when using Si-based photovoltaic as an supplier, 10.11% solar–to–fuel efficiency achieved.

Язык: Английский

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2D/2D g-C3N4@BiOI S-scheme heterojunction with gas-liquid-solid triphase interface for highly efficient CO2 photoreduction

Science China Materials, Год журнала: 2024, Номер 67(6), С. 1830 - 1838

Опубликована: Апрель 28, 2024

Язык: Английский

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Endowing polymeric carbon nitride photocatalyst with CO2 activation sites by anchoring atomic cobalt cluster

Chemical Engineering Journal, Год журнала: 2024, Номер 486, С. 150306 - 150306

Опубликована: Март 11, 2024

Язык: Английский

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