Interfacial water activation by Pd promotes SO2 electroreduction to H2S on CuPd bimetallic catalysts

Journal of Colloid and Interface Science, Год журнала: 2025, Номер 686, С. 970 - 977

Опубликована: Фев. 3, 2025

Язык: Английский

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The distinct effect of RGO coupling on boosting hydrogen production and Cr(VI) reduction over the TiO2/CaTi4O9/CaTiO3 photocatalyst

International Journal of Hydrogen Energy, Год журнала: 2024, Номер 91, С. 528 - 538

Опубликована: Окт. 16, 2024

Язык: Английский

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Enhanced Fe^IV═O Generation via Peroxymonosulfate Activation by an Edge‐Site Engineered Single‐Atom Iron Catalyst

Small, Год журнала: 2025, Номер unknown

Опубликована: Янв. 19, 2025

Abstract As an oxidant, the ferryl‐oxo complex (Fe IV ═O) offers excellent reactivity and selectivity for degrading recalcitrant organic contaminants. However, enhancing Fe ═O generation on heterogeneous surfaces remains challenging because underlying formation mechanism is poorly understood. This study introduces edge defects onto a single‐atom catalyst (FeNC‐edge) to promote via peroxymonosulfate (PMS) activation. In presence of PMS, FeNC‐edge at low dose (20 mg L −1 , equivalent 0.14 Fe) exhibits unprecedented activity contaminant degradation. Electrochemical analysis, in situ Raman spectroscopy, probe experiments confirm that enhanced surface FeNC‐edge. Density functional theory calculations reveal introduced sites concentrate electron density active atoms, facilitating charge transfer from PMS. Notably, immobilized polymeric membrane functioned as continuous‐flow oxidation system with efficient recycling minimal leaching.

Язык: Английский

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Efficient resource treatment of cyanide-containing wastewater over Co3O4 cathode with preferential exposed (1 1 2) facet

Chemical Engineering Journal, Год журнала: 2025, Номер unknown, С. 160655 - 160655

Опубликована: Фев. 1, 2025

Язык: Английский

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d‐Orbital Single Electron Filling O─O π* Bonds on WO₃S₁ Sites for Highly Selective Generation of Hydroxyl Radicals

Small, Год журнала: 2025, Номер unknown

Опубликована: Апрель 24, 2025

Abstract Hydroxyl radical (•OH) stemming from dissolved oxygen (O 2 ) via photocatalysis is very attractive, but its poor selectivity and generation efficiency greatly limit application. Herein, a kind of tungsten single site co‐coordinated with O S atoms (WO 3 1 established on ZnIn 4 (W‐ZIS). The strong interactions in WO shift the d ‐band center toward Fermi level, enhancing adsorption . These improve accumulation photo‐generated electrons , facilitating dissociation O─O bonds crucial intermediates promoting selective conversion into •OH. This brings state‐of‐the‐art (40.2%) (1668.90 mmol. g −1 L h •OH production. Experimental results theoretical simulations have elucidated that can be reduced by ‐orbitals electron ( ↑ _, _) transfer to p ‐orbital pi anti‐bonding π* : x y ), initially activating Additionally, sites facilitate cleavage H O, optimizing proton through W─O orbital coupling transformation oxygen‐containing intermediates. More importantly, fill bond •OOH intermediate, weakening covalency bond, mitigating formation shortening pathway for generation.).

Язык: Английский

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Copper‐based Materials for Photo and Electrocatalytic Process: Advancing Renewable Energy and Environmental Applications

Advanced Functional Materials, Год журнала: 2025, Номер unknown

Опубликована: Май 27, 2025

Abstract Cu‐based catalysts have emerged as critical components in photo‐ and electrocatalysis, offering sustainable solutions for renewable energy environmental applications. The variable oxidation states of Cu enable diverse catalytic pathways, its abundance, low cost, tunable properties positioned them at the forefront innovation. This review provides a comprehensive overview applied production remediation. classification copper‐based catalysts, including metallic copper, copper oxides, sulfides, halide perovskites, metal‐organic frameworks (MOFs), covalent organic (COFs), is discussed, highlighting their structural functional diversity. Various synthesis methods, such wet chemical approaches, electrochemical photochemical routes, sputtering, thermal decomposition, are presented. applications key remediation processes explored, focusing on electrocatalysis. Specifically, CO 2 reduction, water splitting, oxygen nitrogen fixation, pollutant degradation, examined. mechanisms underlying these analyzed, factors influencing efficiency selectivity. These demonstrate potential tackling dual global challenges: diversifying matrix mitigating issues. By bridging fundamental insights, this underscores cornerstone advancing technologies.

Язык: Английский

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Interlayer-release synthesis of Cu single atoms anchored on a heterogeneous photocatalyst for constructing Cu–O_v–Fe bimetallic active sites with ultrafast kinetics of activation of H₂O₂

Journal of Materials Chemistry A, Год журнала: 2024, Номер 12(38), С. 25896 - 25908

Опубликована: Янв. 1, 2024

O v s act as electron trap sites, directly driving the photoelectrons towards adjacent bimetallic active sites through -metal pathways.

Язык: Английский

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