Well-constructed CeO2-coated CuBi2O4 heterojunction: Enhanced charge carriers transportation

Surfaces and Interfaces, Journal Year: 2025, Volume and Issue: unknown, P. 105921 - 105921

Published: Jan. 1, 2025

Language: Английский

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Confinement Improves Mass Transfer and Chemical Reactivity in Electrified Membranes for Micropollutant Degradation

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

Published: Feb. 14, 2025

Abstract Micropollutants (MPs) pose a significant threat to global water environments, necessitating advanced treatment technologies. Distributed electrochemical systems utilizing electrified membranes (EMs) show promise but face challenges due unclear mass transfer and reaction mechanisms within membrane pores of varying sizes surface chemistry. This review examines the interplay between spatial confinement, transfer, chemical reactions in EMs, focusing on reactive species (RSs), EM‐MPs system evolution, phenomena across pore from microns sub‐nanometer scales. Despite advances RS research, coherent mechanistic understanding MP degradation under confinement remains elusive, particularly extreme where deviate bulk behavior. Gaps knowledge stem complex dynamics, thermodynamics kinetics, need for detailed theoretical describe effects. summarizes generation detection methods RSs, outlines progress EM operational modes, elucidates how impacts both reactions. Future research shall focus precise identification quantitative regulation optimization processes relation RSs MPs, investigation active sites energetic barriers confined environments.

Language: Английский

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Synergistic reductive-oxidative removal of halogenated organics via photoelectrochemical activation of sulfite

Applied Catalysis B Environment and Energy, Journal Year: 2025, Volume and Issue: unknown, P. 125161 - 125161

Published: Feb. 1, 2025

Language: Английский

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Cold plasma pretreatment of ramsdellite-MnO2 to enhance remediation of antibiotic rifampicin from water by the self-generated reactive oxygen species

Applied Surface Science, Journal Year: 2025, Volume and Issue: unknown, P. 162811 - 162811

Published: Feb. 1, 2025

Language: Английский

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Molybdenum Telluride-Promoted BiOCl Photocatalysts for the Degradation of Sulfamethoxazole Under Solar Irradiation: Kinetics, Mechanism, and Transformation Products

Catalysts, Journal Year: 2025, Volume and Issue: 15(1), P. 59 - 59

Published: Jan. 10, 2025

This work examines the solar photocatalytic degradation of antibiotic sulfamethoxazole (SMX) using molybdenum telluride (MoTe2)-promoted bismuth oxychloride (BiOCl). Different loadings in 0–1% range on BiOCl were synthesized and evaluated. Although presence MoTe2 did not alter either adsorption capacity or energy gap BiOCl, photocatalyst demonstrated higher activity due to enhanced separation photogenerated pairs. The 0.5MoTe2/BiOCl achieved a kinetic constant nearly 2.8 times than that pure leading elimination 500 μg/L SMX within 90 min. system’s performance was under neutral acidic conditions lower concentrations. Based experiments with radical scavengers, holes appeared be dominant species, contribution reactive species following order h+>O2•−/e−>1O2>HO•. Interestingly, different water matrices, diminished even increased by 20%, likely because action selectivity secondary generated radicals. retained > 90% its after three sequential experiments. Finally, four transformation products from photodegradation identified via UHPLC-TOF-MS, pathway is proposed.

Language: Английский

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Generation and Regulation of High-valent Metal Species in Advanced Oxidation Processes

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

Published: Jan. 1, 2025

Language: Английский

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Combination of Density Functional Theory and Machine Learning Provides Deeper Insight of the Underlying Mechanism in the Ultraviolet/Persulfate System

Environmental Science & Technology, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 27, 2025

The competition between radical and nonradical processes in the activated persulfate system is a captivating challenging topic advanced oxidation processes. However, traditional research methods have encountered limitations this area. This study employed DFT combined with machine learning to establish quantitative structure–activity relationship contributions of active species molecular structures pollutants UV system. By comparing models using different input data sets, it was observed that protonation deprotonation organic molecules play crucial role. Additionally, condensed Fukui function, as local descriptor, found be less effective compared dual descriptor due its imprecise definition f0. sulfate exhibits high selectivity toward electrophilic sites on molecules, while global descriptors determined by their chemical properties provide better predictions for contribution rates hydroxyl radicals. Interestingly, there exists piecewise function relating ELU–HO, which further supported experimental data. Currently, cannot explained classical theory requires investigation. Perhaps new perspective brought us combining learning.

Language: Английский

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Uncovering the High-Activity Origin of Sulfur Doping in Co3o4 for Organic Pollutant Degradation Via Peroxymonosulfate Activation

Published: Jan. 1, 2025

Language: Английский

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Electrochemical Ozone Production Coupled with Activated Peroxymonosulfate for Efficient Degradation of Emerging Contaminants

ACS ES&T Engineering, Journal Year: 2025, Volume and Issue: unknown

Published: March 5, 2025

Language: Английский

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Accurate identification and formation mechanism unraveling of radicals in UV-induced peracetic acid activation system using in-situ electron paramagnetic resonance

Science Bulletin, Journal Year: 2025, Volume and Issue: unknown

Published: March 1, 2025

Language: Английский

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