Photo-assisted technologies for environmental remediation

Published: March 4, 2025

Language: Английский

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Theoretical and experimental progress in photothermal catalysis for sustainable energy and environmental protection: Key problems and strategies towards commercialization

Renewable and Sustainable Energy Reviews, Journal Year: 2024, Volume and Issue: 201, P. 114615 - 114615

Published: June 5, 2024

Language: Английский

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Nanostructured Cobalt Oxide Catalyst with a Three-Dimensional Flower-Like Structure for Photothermal Purification of Formaldehyde

ACS Applied Nano Materials, Journal Year: 2025, Volume and Issue: unknown

Published: March 18, 2025

Language: Английский

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Multistep Quenching of a Rust-Derived Catalyst for Enhanced Volatile Organic Compound Catalytic Oxidation

ACS Catalysis, Journal Year: 2024, Volume and Issue: 14(9), P. 7201 - 7212

Published: April 24, 2024

The advancement of cost-effective Pt catalysts for volatile organic compound (VOC) combustion holds significant importance. Enhancing the adsorption and activation O2 VOCs on is vital VOC oxidation reaction. In this study, we utilized a two-step quenching method to alter iron rust, resulting in deposition species Sn-doped Fe2O3 sample (Ptq/Snq:Fe2O3). Experiments theoretical calculations revealed that both process Sn dopants would induce generation oxygen vacancies, improving mobility Ptq/Snq:Fe2O3. Also, doping enhance interaction between support modulate Pt's electronic structure, promoting toluene desorption product CO. Thus, developed Ptq/Snq:Fe2O3 exhibited boosted toluene/acetone activity, achieving 90% mineralization rate at 215 °C acetone 228 °C, respectively. situ diffuse reflectance infrared Fourier transform spectroscopy showcased vacancy with modulated structure synergistically heightened acetone/toluene, accelerated ring breakage toluene, brought about thorough This research could offer potential avenue fine-tuning active sites crucial catalytic processes.

Language: Английский

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Advanced development of dual-atom catalysts: From synthesis methods to versatile electrocatalytic applications

Journal of Power Sources, Journal Year: 2024, Volume and Issue: 613, P. 234923 - 234923

Published: June 19, 2024

Language: Английский

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Surface oxygen vacancies induced by cu-doping in hexagonal ZnMn2O4 nanoplates for high efficiency photothermocatalytic oxidation of toluene

Separation and Purification Technology, Journal Year: 2024, Volume and Issue: 354, P. 128743 - 128743

Published: July 8, 2024

Language: Английский

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Macroporosity-Heightened Mass Transfer Enabling Complete Benzene Oxidation over Pt/SiO₂ Catalyst

Langmuir, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 21, 2025

Mass transfer governs the overall catalytic performance of heterogeneous catalysts considerably; however, this fundamental research has often been ignored. Here, macroporous SiO2-supported Pt nanoparticle (Pt/SiO2-M) and mesoporous (Pt/SiO2-m) were specifically fabricated by a facile thermal reduction step to engineer resultant nanoparticles showing similar physiochemical properties while possessing completely different porous microstructures exclusively originating from SiO2 supports. On basis, platform explore crucial mass difference affecting activity is then established systematically practicing industry-important benzene oxidation measurements. State-of-the-art characterization techniques confirmed that all as-synthesized Pt/SiO2 indeed exhibited almost identical sites, excluding discrepancies raised nanoparticles. Importantly, Pt/SiO2-M displayed complete capabilities at lower temperature than for Pt/SiO2-m, accrediting macroporosity-induced faster desorption rate H2O CO2, thus making it capable enhancing high utilization sites. This work highlights importance improving capability toward supported nanoparticulate catalysts, demonstrating significance designing novel supports catalysis implications.

Language: Английский

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Creation of High‐Speed Carrier Migration Channel through Sulfur‐Modulated ZnSn(OH)₆ Electric Fields for Deep Oxidation of C─H Bonds

Advanced Functional Materials, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 24, 2025

Abstract The key challenge in the deep mineralization of toluene (C 7 H 8 ) into carbon dioxide (CO 2 lies controlling efficient selective oxidation intermediates. Here, dual‐site photocatalyst (ZHS‐3S) with S 2− doping and oxygen vacancies (OVs) is formed by situ introduction sulfur ions (S relatively low electronegativity to promote dissociation strongly electronegative atoms at tin sites. ZHS‐3S demonstrates impressive performance: 91.95% C removal rate, complete mineralization, stability over 600 min. Comprehensive materials characterization theoretical calculations led several critical insights: i) precise coordination dual sites has created high‐speed charge carrier migration channels centered around OVs, achieving an electron transfer efficiency up 93.95%; ii) optimization local electric field establishes dynamic equilibrium for adsorption desorption , ensuring its initial efficacy catalytic reactions while mitigating aggregation phenomena associated risk poisoning; iii) breaking through thermodynamic limitation photooxidation, effectively diminishing Gibbs free energy required formation readily ring‐opening intermediates (benzaldehyde→benzoic acid). These findings offer a novel perspective on incorporating non‐metallic elements electronegativities, aiming design highly materials.

Language: Английский

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Synergic solar interfacial evaporation with heterogenous electro-Fenton: A near zero-discharge approach for water purification

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 163275 - 163275

Published: April 1, 2025

Language: Английский

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Cerium valence state conversion: fabrication and environmental remediation of modified CeO2 materials

Journal of Rare Earths, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 1, 2024

Language: Английский

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