Efficient photothermal mineralization of toluene over MnCo2O4 with different exposed facets: Revealing the role of oxygen vacancy and photo-/thermo- synergistic mechanism

Applied Catalysis B Environment and Energy, Год журнала: 2024, Номер 357, С. 124308 - 124308

Опубликована: Июнь 15, 2024

Язык: Английский

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Modulating Adsorption–Redox Sites and Charge Separation of Cs₃Bi₂Br_9–x@AgBr Core–Shell Heterostructure for Selective Toluene Photooxidation

ACS Energy Letters, Год журнала: 2024, Номер 9(4), С. 1743 - 1752

Опубликована: Март 26, 2024

Constructing vacancy-decorated heterojunction photocatalysts is a feasible strategy for highly efficient photooxidation of toluene to benzaldehyde. However, poor interface interaction and vacancy-triggered mismatched redox kinetics seriously impede photocatalytic activity improvement. Herein, chemically bonded Cs3Bi2Br9–x@AgBr core–shell with unified adsorption-redox sites fabricated via an in-situ light-assisted Ag+ insertion method. Experiments theoretical calculations demonstrate that the type-II band alignment interfacial Bi–Br–Ag bonds boosts charge separation. Moreover, because greater oxygen adsorption energy steric-hindrance effect AgBr shell, preferred site O2 modulated from Br vacancy (VBr, trapping holes) its corresponding reduction (AgBr, gathering electrons), thereby ensuring VBr-enhancing adsorption/oxidation on Cs3Bi2Br9. Therefore, exhibits improved benzaldehyde production rate 5.61 mmol g–1 h–1 (selectivity: 91%), outperforming pure Cs3Bi2Br9 by factor 6. This work underlines importance rational design heterointerface at atomic level in photocatalysis.

Язык: Английский

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Fast Joule heating for transformation of Fe-MIL-125(Ti) to Fe/TiO2 with enhanced photocatalytic activity in N2 fixation

Applied Catalysis B Environment and Energy, Год журнала: 2024, Номер 347, С. 123795 - 123795

Опубликована: Апрель 24, 2024

Язык: Английский

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Photo-assisted technologies for environmental remediation

Опубликована: Март 4, 2025

Язык: Английский

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Unveiling Mechanistic Insight into Boosting Oxygen Species Activation over CeO2/Mn2O3 p–n Heterojunction for Efficient Photothermal Mineralization of Toluene

Journal of Hazardous Materials, Год журнала: 2025, Номер unknown, С. 137423 - 137423

Опубликована: Янв. 1, 2025

Язык: Английский

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Recent progress in photothermal-catalysis: the pivotal impact factors and various applications from energy to environment

Journal of Energy Chemistry, Год журнала: 2025, Номер unknown

Опубликована: Янв. 1, 2025

Язык: Английский

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Efficient Photothermal Catalytic Oxidation Enabled by Three-Dimensional Nanochannel Substrates

Environmental Science & Technology, Год журнала: 2024, Номер 58(11), С. 5153 - 5161

Опубликована: Март 8, 2024

Photothermal catalysis exhibits promising prospects to overcome the shortcomings of high-energy consumption traditional thermal and low efficiency photocatalysis. However, there is still a challenge develop catalysts with outstanding light absorption capability photothermal conversion for degradation atmospheric pollutants. Herein, we introduced Co3O4 layer Pt nanoclusters into three-dimensional (3D) porous membrane through atomic deposition (ALD) technique, leading Pt/Co3O4/AAO monolithic catalyst. The 3D ordered nanochannel structure can significantly enhance solar capacity light-trapping effect. Therefore, embedded Pt/Co3O4 catalyst be rapidly heated O2 adsorbed on clusters activated generate sufficient O2– species, exhibiting activity diverse VOCs (toluene, acetone, formaldehyde) degradation. Optical characterization simulation calculation confirmed that exhibited state-of-the-art notable localized surface plasmon resonance (LSPR) In situ diffuse reflectance infrared Fourier transform spectrometry (in DRIFTS) studies demonstrated irradiation accelerate intermediates during toluene acetone oxidation, thereby inhibiting byproduct accumulation. Our finding extends application AAO's optical properties in catalytic air

Язык: Английский

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Highly efficient catalytic oxidation of toluene by amorphous/microcrystalline mixed-phase MnO2

Separation and Purification Technology, Год журнала: 2024, Номер 345, С. 127348 - 127348

Опубликована: Апрель 3, 2024

Язык: Английский

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Efficient Solar‐Driven CO₂ Methanation and Hydrogen Storage Over Nickel Catalyst Derived from Metal–Organic Frameworks with Rich Oxygen Vacancies

Advanced Science, Год журнала: 2023, Номер 10(34)

Опубликована: Окт. 22, 2023

Solar-driven photothermal conversion of carbon dioxide (CO2 ) to methane (CH4 is a promising approach remedy energy shortage and climate changes, where highly efficient catalysts for CO2 methanation urgently need be designed. Herein, nickel-based (Ni/ZrO2 derived from metal-organic frameworks (MOFs) are fabricated studied methanation. The optimized catalyst 50Ni/ZrO2 achieves stable CH4 production rate 583.3 mmol g-1 h-1 in continuous stability test, which almost tenfold higher than that 50Ni/C-ZrO2 synthesized via commercial ZrO2 . Physicochemical properties indicate generates more tetragonal possesses oxygen vacancies (OVs) as well enhanced nickel-ZrO2 interaction. As result, exhibits the strong abilities light absorption light-to-heat conversion, superior adsorption capacities reactants (H2 , ), an intermediate product (CO), finally boosts formation. This work provides strategy design photothermocatalyst through utilizing MOFs-derived support.

Язык: Английский

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Microwave-assisted construction of MXene/MOF aerogel via N-metal bonds for efficient photodegradation of vapor acetone under high humidity

Chemical Engineering Journal, Год журнала: 2023, Номер 476, С. 146878 - 146878

Опубликована: Окт. 24, 2023

Язык: Английский

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