Solvent-induced fabrication of Cu/MnOx nanosheets with abundant oxygen vacancies for efficient and long-lasting photothermal catalytic degradation of humid toluene vapor

Applied Catalysis B Environment and Energy, Год журнала: 2023, Номер 328, С. 122509 - 122509

Опубликована: Фев. 21, 2023

Язык: Английский

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Probing the Actual Role and Activity of Oxygen Vacancies in Toluene Catalytic Oxidation: Evidence from In Situ XPS/NEXAFS and DFT +UCalculation

ACS Catalysis, Год журнала: 2023, Номер 13(6), С. 3444 - 3455

Опубликована: Фев. 23, 2023

Metal oxide catalysts like CeO2 exhibit promising prospects to replace the currently used noble metal in catalytic oxidation of volatile organic compounds (VOCs). Although oxygen vacancy is regarded as an active site these novel VOC elimination (e.g., toluene), its actual function and activity remain unclear due limitation following dynamic evolution during reactions. Meanwhile, because involves generation–consumption cycle reactive species rather than being constant, this barrier causes a deficient understanding backfilling rate-determining steps. Hence, CeO2-based with varying concentrations were synthesized for toluene through tensile-strained lattice electron deficit induced by cobalt doping. The evolutions vacancies directly followed means situ X-ray photoelectron spectroscopy near-edge absorption fine structure. Evidence was captured that participate subsurface storage diffusion besides their surface regeneration. This mechanism reflects fundamentals capacity providing additional supplement when needed. Additionally, part discerned be not enough backfilling, leaving process crucial step aromatic ring opening. degradation mechanism, including electrophilic adsorption sites, how regulates also revealed via density functional theory + U calculation.

Язык: Английский

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A review of activating lattice oxygen of metal oxides for catalytic reactions: Reaction mechanisms, modulation strategies of activity and their practical applications

Applied Catalysis A General, Год журнала: 2023, Номер 664, С. 119348 - 119348

Опубликована: Июль 23, 2023

Язык: Английский

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Dual‐Atomic‐Site Catalysts for Molecular Oxygen Activation in Heterogeneous Thermo‐/Electro‐catalysis

Angewandte Chemie International Edition, Год журнала: 2023, Номер 62(22)

Опубликована: Март 9, 2023

Efficient molecular oxygen activation (MOA) is the key to environmentally friendly catalytic oxidation reactions. In last decade, single-atomic-site catalysts (SASCs) with nearly 100 % atomic utilization and unique electronic structure have been widely investigated for MOA. However, single active site makes effect unsatisfactory difficult deal complex Recently, dual-atomic-site (DASCs) provided a new idea effective of (O2 ) due more diverse sites synergetic interactions among adjacent atoms. this review, we systematically summarized recent research progress DASCs MOA in heterogeneous thermo- electrocatalysis. Finally, look forward challenges application prospects construction

Язык: Английский

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Vanadium- and manganese-based metal-organic frameworks for potential environmental and catalysis applications

Coordination Chemistry Reviews, Год журнала: 2024, Номер 522, С. 216231 - 216231

Опубликована: Сен. 25, 2024

Язык: Английский

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Non–closed–loop recycling strategies for spent lithium–ion batteries: Current status and future prospects

Energy storage materials, Год журнала: 2024, Номер 67, С. 103288 - 103288

Опубликована: Фев. 21, 2024

Язык: Английский

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Efficient Catalytic Elimination of Toxic Volatile Organic Compounds via Advanced Oxidation Process Wet Scrubbing with Bifunctional Cobalt Sulfide/Activated Carbon Catalysts

Environmental Science & Technology, Год журнала: 2024, Номер 58(20), С. 8846 - 8856

Опубликована: Май 10, 2024

Advanced oxidation process (AOP) wet scrubber is a powerful and clean technology for organic pollutant treatment but still presents great challenges in removing the highly toxic hydrophobic volatile compounds (VOCs). Herein, we elaborately designed bifunctional cobalt sulfide (CoS2)/activated carbon (AC) catalyst to activate peroxymonosulfate (PMS) efficient VOC removal an AOP scrubber. By combining excellent adsorption capacity of AC with PMS activation activity CoS2, CoS2/AC can rapidly capture VOCs from gas phase proceed SO4•– HO• radical-induced reaction. More than 90% aromatic were removed over wide pH range (3–11) low Co ion leaching (0.19 mg/L). The electron-rich sulfur vacancies low-valence species main active sites activation. was mainly responsible initial VOCs, while O2 acted subsequent ring-opening mineralization processes intermediates. No gaseous intermediates detected, liquid like benzene also greatly decreased, thus effectively reducing health toxicity associated byproduct emissions. This work provided comprehensive understanding deep via scrubber, significantly accelerating its application environmental remediation.

Язык: Английский

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Tailoring local environment of oxygen vacancies by molybdenum doping on MnO2 for enhanced catalytic oxidation of VOCs

Chemical Engineering Journal, Год журнала: 2024, Номер 481, С. 148703 - 148703

Опубликована: Янв. 12, 2024

Язык: Английский

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Catalytic oxidation of VOCs and CO on cobalt-based Materials: Strategies and mechanisms for improving activity and stability

Chemical Engineering Journal, Год журнала: 2024, Номер 484, С. 149296 - 149296

Опубликована: Фев. 5, 2024

Язык: Английский

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Degradation of volatile organic pollutants over manganese-based catalysts by defect engineering: A review

Separation and Purification Technology, Год журнала: 2025, Номер unknown, С. 131934 - 131934

Опубликована: Фев. 1, 2025

Язык: Английский

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