Carbon nitride based nanoarchitectonics for nature-inspired photocatalytic CO2 reduction

Progress in Materials Science, Journal Year: 2024, Volume and Issue: 142, P. 101242 - 101242

Published: Jan. 21, 2024

Drawing inspiration from the natural process of photosynthesis found in plant leaves, scientists are exploring use photocatalysis to convert carbon dioxide (CO2) into valuable products using solar light and water. Photocatalytic CO2 conversion has emerged as one efficient green approaches revitalize environment greenhouse gas pollution. Owing its visible-range band gap, non-toxicity, ease synthesis at economic costs stability under irradiation, g-C3N4 most explored photocatalyst. However, due rampant exciton recombination owing poor electrical conductivity, efficiency reduction falls short for pure/pristine form. Therefore, structural manoeuvre materials N-rich configurations, heteroatom/single-atom doping hybridization with various functional including metal oxides/sulfides, perovskite halides complexes been adopted, thereby overcoming their inherent drawbacks photocatalytic reduction. In this timely review, we present an overview recent advances surface/interface engineering nitrides fuels useful chemical by-products. More importance is given critical evaluation surface manipulation how it amplifies affects properties Finally, provide a comprehensive outlook future directions these functionalised applications. We strongly believe that unique review will offer new knowledge on property relationship nitride-based impact enhancing performance reactions further create opportunities them areas.

Language: Английский

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Boosting Artificial Photosynthesis: CO₂ Chemisorption and S-Scheme Charge Separation via Anchoring Inorganic QDs on COFs

ACS Catalysis, Journal Year: 2024, Volume and Issue: 14(3), P. 1951 - 1961

Published: Jan. 22, 2024

Photocatalytic conversion of CO2 into valuable hydrocarbon fuels holds great promise in addressing emerging energy shortages and environmental crises while fulfilling pressing societal national development demands. Nonetheless, its efficiency is hindered by restricted chemisorption, rapid electron–hole recombination, weak redox capability. Drawing inspiration from the distinctive characteristics Schiff-based covalent organic frameworks (COFs), including substantial specific surface area, unique pore structure, an abundance weakly alkaline nitrogen elements, we employ TPA-COF to enhance chemisorption activation acidic molecules, as validated CO2-temperature-programmed desorption analysis. Furthermore, anchoring CsPbBr3 quantum dots (QDs) onto COF facilitates effective spatial separation photoinduced charge carriers with strong capability, resulting formation S-scheme heterojunctions between QDs substantiated situ irradiation X-ray photoelectron spectroscopy, femtosecond transient absorption density functional theory simulations. As anticipated, optimized COF/QDs heterostructures exhibit remarkable enhancements photoreduction performance absence any molecule cocatalyst or scavenger, yielding CO CH4 at rates 41.2 13.7 μmol g–1, respectively. This work provides insights novel organic/inorganic heterojunction photocatalysts separation, offering potential for sustainable artificial photosynthesis.

Language: Английский

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Piezoelectric effect-assisted Z-scheme heterojunction ZnIn2S4/BaTiO3 for improved photocatalytic reduction of CO2 to CO

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 483, P. 149058 - 149058

Published: Feb. 2, 2024

Language: Английский

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Halide Perovskites for Photoelectrochemical Water Splitting and CO₂ Reduction: Challenges and Opportunities

ACS Catalysis, Journal Year: 2024, Volume and Issue: 14(9), P. 6603 - 6622

Published: April 16, 2024

Photoelectrochemical water splitting and CO2 reduction provide an attractive route to produce solar fuels while reducing the level of emissions. Metal halide perovskites (MHPs) have been extensively studied for this purpose in recent years due their suitable optoelectronic properties. In review, we survey achievements field. After a brief introduction photoelectrochemical (PEC) processes, discussed properties, synthesis, application MHPs context. We also state-of-the-art findings regarding significant performance, developments addressing major challenges toxicity instability toward water. Efforts made replace toxic Pb with less materials like Sn, Ge, Sb, Bi. The stability has improved by using various methods such as compositional engineering, 2D/3D perovskite structures, surface passivation, use protective layers, encapsulation. last part, considering experience gained photovoltaic applications, provided our perspective future opportunities. place special emphasis on improvement challenge potential contribution machine learning identify most formulation desired

Language: Английский

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Environmental remediation of hazardous pollutants using MXene-perovskite-based photocatalysts: A review

Environmental Research, Journal Year: 2023, Volume and Issue: 234, P. 116576 - 116576

Published: July 7, 2023

Language: Английский

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Solar‐Driven Conversion of CO₂ to C₂ Products by the 3d Transition Metal Intercalates of Layered Lead Iodides

Advanced Materials, Journal Year: 2024, Volume and Issue: 36(30)

Published: May 2, 2024

Abstract Photocatalytic CO 2 reduction to high‐value‐added C 2+ products presents significant challenges, which is attributed the slow kinetics of multi‐e − photoreduction and high thermodynamic barrier for C–C coupling. Incorporating redox‐active Co /Ni cations into lead halide photocatalysts has potentials improve carrier transport introduce charge polarized bimetallic sites, addressing kinetic issues, respectively. In this study, a coordination‐driven synthetic strategy developed 3d transition metals interlamellar region layered organolead iodides with atomic precision. The resultant hybrids exhibit selective H 5 OH using O vapor at evolution rates 24.9–31.4 µmol g −1 h selectivity 89.5–93.6%, while pristine iodide yields only 1 products. Band structure calculations photoluminescence studies indicate that interlayer species greatly contribute frontier orbitals enhance exciton dissociation free carriers, facilitating between adjacent layers. addition, Bader distribution in situ experimental spectroscopic reveal asymmetric Ni–O–Pb catalytic sites intrinsic polarization, promoting coupling leading formation key *OC–CHO intermediate.

Language: Английский

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Environmental application of versatile Bi-based perovskite photocatalysts and their Z-scheme and S-scheme heterojunctions

Journal of environmental chemical engineering, Journal Year: 2024, Volume and Issue: 12(5), P. 113309 - 113309

Published: June 15, 2024

Language: Английский

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Assembling ultrathin nickel hydroxide nanosheets on cadmium sulfide hollow spheres for enhanced CO2 photoreduction

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 482, P. 149184 - 149184

Published: Jan. 29, 2024

Language: Английский

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Heterogeneous catalytic conversion of carbon dioxide and epoxides to cyclic carbonates

Surfaces and Interfaces, Journal Year: 2024, Volume and Issue: 45, P. 103845 - 103845

Published: Jan. 3, 2024

Language: Английский

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Recent intensification strategies of Indium vanadate-based materials for photocatalytic application

Separation and Purification Technology, Journal Year: 2024, Volume and Issue: 346, P. 127462 - 127462

Published: April 10, 2024

Language: Английский

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