S‐Scheme CdS/Co₃S₄ Double‐Shelled Hollow Nanoboxes for Enhanced Photocatalytic Hydrogen Evolution DOI
Han Huang, Jackie Y. Cai,

Qingmei Xu

et al.

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

Published: April 14, 2025

Abstract Developing S‐scheme systems with high photocatalytic performance is crucial for long‐term solar‐to‐hydrogen conversion. In this study, hollow cobalt tetrasulfide (Co 3 S 4 ) nanoboxes (NBs), synthesized via sulfurization using zeolitic imidazolate framework (ZIF‐67) as a template, are combined cadmium sulfide (CdS) nanoparticles (NPs) to construct heterojunction photocatalysts under mild conditions. The optimized CdS/Co double‐shelled (DSNBs) achieved superior hydrogen production rate of 23.45 mmol h −1 g visible light, approximately 24 times greater than that pure CdS NPs. apparent quantum efficiency (AQE) DSNBs 18.5 %. distinctive structure enhances visible‐light‐harvesting by exposing active sites, enabling multiple light reflections, and allowing the thin shells shorten transport distance charge carriers, effectively minimizing recombination. improved photoactivity results from synergistic effects aligned bandgap structures, strong visible‐light absorption, interfacial interactions driven inherent electric field (IEF). findings offer insights into designing efficient catalysts sustainable evolution through water splitting.

Language: Английский

Non‐Metal Sulfur Doping of Indium Hydroxide Nanocube for Selectively Photocatalytic Reduction of CO2 to CH4: A “One Stone Three Birds” Strategy DOI Creative Commons

Qinhui Guan,

Weiguang Ran, Dapeng Zhang

et al.

Advanced Science, Journal Year: 2024, Volume and Issue: 11(30)

Published: June 13, 2024

Photocatalytic CO

Language: Английский

Citations

18
Poly(triazine imide) Crystals for Efficient CO2 Photoreduction: Surface Pyridine Nitrogen Dominates the Performance DOI
Feng Liu, Jing Deng,

Bo Su

et al.

ACS Catalysis, Journal Year: 2025, Volume and Issue: unknown, P. 1018 - 1026

Published: Jan. 2, 2025

Polymeric carbon nitrides (PCNs), usually the melon phase, have been extensively applied as photocatalysts for CO2 reduction; however, their performance is still unsatisfactory. The condensed allotrope, namely, poly(triazine imide) (PTI) with extended conjugation and a crystallized structure, indeed holds more favorable compositional structural advantages photocatalytic reduction but remains to be fully exploited. Herein, hexagonal prism-shaped PTI crystals were synthesized developed high-performance photocatalyst reduction. With Co(bpy)32+ cocatalyst, exhibit CO evolution rate of 44 μmol h–1 (i.e., 1467 g–1 h–1) 93% selectivity, markedly superior that counterpart. Moreover, manifest an apparent quantum efficiency 12.9% at 365 nm, representing state-of-the-art value by PCN CO2-to-CO without using noble metals. surface pyridine N species are exposed active sites dominate activation conversion, which, together high crystallinity facilitate charge separation transport, endows efficiency. In situ diffuse reflectance infrared Fourier transform spectroscopy determines key intermediates during reaction and, consequently, constructs possible mechanism.

Language: Английский

Citations

6
Understanding and Tuning the Effects of H2O on Catalytic CO and CO2 Hydrogenation DOI
Mingrui Wang, Guanghui Zhang, Hao Wang

et al.

Chemical Reviews, Journal Year: 2024, Volume and Issue: 124(21), P. 12006 - 12085

Published: Oct. 31, 2024

Catalytic COx (CO and CO2) hydrogenation to valued chemicals is one of the promising approaches address challenges in energy, environment, climate change. H2O an inevitable side product these reactions, where its existence effect are often ignored. In fact, significantly influences catalytic active centers, reaction mechanism, performance, preventing us from a definitive deep understanding on structure-performance relationship authentic catalysts. It necessary, although challenging, clarify provide practical strategies tune concentration distribution optimize influence. this review, we focus how induces structural evolution catalysts assists processes, as well efforts understand underlying mechanism. We summarize discuss some representative tuning for realizing rapid removal or local enrichment around catalysts, along with brief techno-economic analysis life cycle assessment. These fundamental understandings further extended reactions CO CO2 reduction under external field (light, electricity, plasma). also present suggestions prospects deciphering controlling applications.

Language: Английский

Citations

11
Aeration‐Free Photo‐Fenton‐Like Reaction Mediated by Heterojunction Photocatalyst toward Efficient Degradation of Organic Pollutants DOI Open Access
Yan Wang, Lianxin Li,

Puyang Zhou

et al.

Angewandte Chemie International Edition, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 15, 2024

The regulation of peroxymonosulfate (PMS) activation by photo-assisted heterogeneous catalysis is under in-depth investigation with potential as a replaceable advanced oxidation process in water purification, yet it remains significant challenge. Herein, we demonstrate strategy to construct polyethylene glycol (PEG) well-coupled dual-defect V

Language: Английский

Citations

11
In situ construction of Ohmic/Schottky-type MoS2/Sv-ZnIn2S4/Cu(OH)2 dual-junction photocatalysts with enhanced water splitting into hydrogen generation activity DOI
Aihua Yan, Tongyang Zhang, Fei Huang

et al.

Journal of Materials Chemistry A, Journal Year: 2024, Volume and Issue: 12(24), P. 14646 - 14658

Published: Jan. 1, 2024

Multichannel-optimized MoS 2 /Sv-ZnIn S 4 /Cu(OH) composites, integrating sulfur vacancy, Ohmic junction and Schottky junction, were synthesized by an in situ technique. Benefiting from the synergistic effect, staggered composites exhibited enhanced photocatalytic hydrogen production activity.

Language: Английский

Citations

9
Promoting photothermal catalytic N2 reduction through dynamic mass transfer and accelerated charge transfer dynamics DOI

Tianxu Zeng,

Hongbin He, K. T. Cheng

et al.

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 497, P. 154832 - 154832

Published: Aug. 13, 2024

Language: Английский

Citations

9
Surface Phosphorus Grafting of Ti3C2Tx MXene as an Interface Charge “Bridge” for Efficient Electrocatalytic Hydrogen Evolution in All-pH Media DOI
Jian Zhang,

Xianzhi Yang,

Chen Chen

et al.

Chemistry of Materials, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 4, 2024

The interface electronic structure of heterogeneous catalysts can be modulated by changing the surface coordination configuration, which is crucial to their catalytic activity. Herein, a phosphorus-grafted Ti3C2Tx MXene platform anchored with an MoS2 nanoflake heterojunction electrocatalyst was assembled through simple phosphorus-hydrothermal method. An charge "bridge" has been created grafting uniform P atoms coordinated O (P-Ti3C2Tx), resulting in charge-transfer channel between P-Ti3C2Tx and MoS2. Based on ultrafast transient absorption spectroscopy, fastest electron-transfer kinetics from (1.7 ps) slowest electron–hole recombination speed (28 were obtained over MoS2@P-Ti3C2Tx than those MoS2@O-Ti3C2Tx MoS2@OP-Ti3C2Tx. Benefiting lower carrier transport activation energy, exhibited stirring electrocatalytic activity toward hydrogen evolution all-pH media, delivered three low overpotentials 48.6, 63.2, 70.5 mV at 10 mA cm–2 alkaline, acid, neutral respectively. Grafting atomic scale create proposes new strategy design efficient pH-universal electrocatalyst.

Language: Английский

Citations

9
Constructing a Z-scheme β-Bi2O3/g-C3N4 heterojunction with enhancing photocatalytic activity for sulfamethoxypyridazine degradation DOI

Xiaolan Zeng,

Xueli Wang,

Shuang Shu

et al.

Materials Science in Semiconductor Processing, Journal Year: 2025, Volume and Issue: 189, P. 109273 - 109273

Published: Jan. 12, 2025

Language: Английский

Citations

1
Enabling Interfacial Lattice Matching by Selective Epitaxial Growth of CuS Crystals on Bi2WO6 Nanosheets for Efficient CO2 Photoreduction into Solar Fuels DOI

Jiaqi Tian,

Yangyang Zhang, Zuhao Shi

et al.

Angewandte Chemie International Edition, Journal Year: 2024, Volume and Issue: unknown

Published: Oct. 27, 2024

Abstract Photocatalytic CO 2 reduction serves as an important technology for value‐added solar fuel production, however, it is generally limited by interfacial charge transport. To address this limitation, a two‐dimensional/two‐dimensional (2D/2D) p‐n heterojunction CuS‐Bi WO 6 (CS‐BWO) with highly connected and matched lattices was designed in work via two‐step hydrothermal tandem synthesis strategy. The integration of CuS BWO created robust interface electric field provided fast transfer channels due to the function difference, well lattices. combination promoted electron from Cu Bi sites, leading coordination sites high electronic density low oxidation state. nanosheets facilitated adsorption activation , generation high‐coverage key intermediate b‐CO 3 2− while (CS) acted broad light‐harvesting material provide abundant photoinduced electrons that were injected into conduction band photoreduction reaction. Remarkably, CS‐BWO exhibited average CH 4 yields 33.9 16.4 μmol g −1 h respectively, which significantly higher than those CS, BWO, physical mixture samples. This innovative design strategy developing high‐activity photocatalyst converting fuels.

Language: Английский

Citations

8
Multiple covalent/hydrogen bonds bridging electron transfer in polymeric carbon nitride for efficient photocatalytic H2O2 production DOI

Jianwen Zhou,

Tianshang Shan,

Shengye Wu

et al.

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 492, P. 152441 - 152441

Published: May 21, 2024

Language: Английский

Citations

5