Direct Z‐Scheme Hetero‐phase Junction of Black/Red Phosphorus for Photocatalytic Water Splitting

Angewandte Chemie International Edition, Journal Year: 2019, Volume and Issue: 58(34), P. 11791 - 11795

Published: June 26, 2019

Abstract Black phosphorus (BP) has recently drawn attention in photocatalysis for its optical properties. However, limited by the rapid recombination of photogenerated carriers, use BP photocatalytic water splitting still remains a huge challenge. Herein, we prepare black/red (BP/RP) hetero‐phase junction photocatalyst wet‐chemistry method to promote interfacial charge separation and thus achieve Z‐scheme without using sacrificial agents. The mechanism was confirmed time‐resolved transient absorption spectroscopy. This work provides novel insight into interface design with atomic precision.

Language: Английский

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Facile construction of novel Bi2WO6/Ta3N5 Z-scheme heterojunction nanofibers for efficient degradation of harmful pharmaceutical pollutants

Chemical Engineering Journal, Journal Year: 2020, Volume and Issue: 402, P. 126165 - 126165

Published: July 7, 2020

Language: Английский

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BiVO4, Bi2WO6 and Bi2MoO6 photocatalysis: A brief review

Journal of Material Science and Technology, Journal Year: 2020, Volume and Issue: 56, P. 45 - 68

Published: April 27, 2020

Language: Английский

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Z-Scheme 2D/2D α-Fe2O3/g-C3N4 heterojunction for photocatalytic oxidation of nitric oxide

Applied Catalysis B Environment and Energy, Journal Year: 2020, Volume and Issue: 280, P. 119409 - 119409

Published: Aug. 15, 2020

Language: Английский

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Z‐Scheme 2D/2D Heterojunction of CsPbBr₃/Bi₂WO₆ for Improved Photocatalytic CO₂ Reduction

Advanced Functional Materials, Journal Year: 2020, Volume and Issue: 30(50)

Published: Sept. 11, 2020

Abstract Heterojunction engineering, especially 2D/2D heterojunctions, is regarded as a quite promising strategy to manipulate the photocatalytic performance of semiconductor catalysts. In this manuscript, direct Z‐scheme heterojunction CsPbBr 3 /Bi 2 WO 6 designed and fabricated by simple electrostatic self‐assembly process. By using ultrathin nanosheets with several atomic layers building blocks, close heterointerface over large area short charge transport distance obtained, which enables valid interfacial transfer between Bi thus boosts separation. The exhibits superior toward CO reduction. incorporating Pt nanoparticles cocatalyst, high photoelectron consumption rate 324.0 µmol g −1 h under AM 1.5G irradiation (150 mW cm −2 ) 12.2 fold higher than that nanosheets. Moreover, stable product yield up 1582.0 µ mol electron 8603.0 for reduction (11.4%) CH 4 (84.3%) can be achieved after 30 continuous catalytic reaction. accelerated photogenerated spatial separation are investigated in detail ultrafast spectra, photoelectrochemical test, Kelvin probe force microscopy.

Language: Английский

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Advances in designing heterojunction photocatalytic materials

CHINESE JOURNAL OF CATALYSIS (CHINESE VERSION), Journal Year: 2021, Volume and Issue: 42(5), P. 710 - 730

Published: March 30, 2021

Language: Английский

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Recent advances on Bi2WO6-based photocatalysts for environmental and energy applications

CHINESE JOURNAL OF CATALYSIS (CHINESE VERSION), Journal Year: 2021, Volume and Issue: 42(9), P. 1413 - 1438

Published: May 6, 2021

Language: Английский

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Construction of Hierarchical Hollow Co₉S₈/ZnIn₂S₄ Tubular Heterostructures for Highly Efficient Solar Energy Conversion and Environmental Remediation

Angewandte Chemie International Edition, Journal Year: 2020, Volume and Issue: 59(21), P. 8255 - 8261

Published: Jan. 28, 2020

Visible-light-responsive hierarchical Co9 S8 /ZnIn2 S4 tubular heterostructures are fabricated by growing 2D ZnIn2 nanosheets on 1D hollow nanotubes. This design combines two photoresponsive sulfide semiconductors in a stable heterojunction with structure, improving visible-light absorption, yielding large surface area, exposing sufficient catalytically active sites, and promoting the separation migration of photogenerated charges. The nanotubes exhibit excellent photocatalytic H2 evolution CrVI reduction efficiency. Under illumination, optimized heterostructure provides remarkable generation rate 9039 μmol h-1 g-1 without use any co-catalysts is completely reduced 45 min. after multiple cycles.

Language: Английский

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Direct Z-Scheme 0D/2D Heterojunction of CsPbBr₃ Quantum Dots/Bi₂WO₆ Nanosheets for Efficient Photocatalytic CO₂ Reduction

ACS Applied Materials & Interfaces, Journal Year: 2020, Volume and Issue: 12(28), P. 31477 - 31485

Published: June 22, 2020

Photocatalytic CO2 reduction is an appealing approach to convert solar energy into high value-added chemicals. All-inorganic CsPbBr3 quantum dots (QDs) have emerged as a promising photocatalyst for reducing CO2. However, pristine has low catalytic performance, mainly due severe charge recombination. Herein, 0D/2D heterojunction of QDs/Bi2WO6 nanosheet (CPB/BWO) photocatalysts fabricated photocatalytic reduction. The CPB/BWO achieves excellent performance: the total yield CH4/CO 503 μmol g-1, nearly 9.5 times higher than CsPbBr3. also exhibits much-improved stability during reactions. On basis various characterization techniques, our investigations verified direct Z-scheme migration mechanism between QDs and Bi2WO6 nanosheets. improved performance originated from spatial separation photoexcited carriers in CPB/BWO, which can preserve strong individual redox abilities two components. This work reports efficient system based on metal halide perovskites. novel strategy we proposed may bring up new opportunities development perovskite with greatly enhanced activities.

Language: Английский

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Inter-plane heterojunctions within 2D/2D FeSe2/g-C3N4 nanosheet semiconductors for photocatalytic hydrogen generation

Applied Catalysis B Environment and Energy, Journal Year: 2019, Volume and Issue: 261, P. 118249 - 118249

Published: Oct. 1, 2019

Language: Английский

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