Synergistic Interactions of Bulk Polarization and Built‐In Electric Field Inducing 2D/2D S‐Scheme Homojunction Toward Enhanced Photocatalytic Performance DOI
Xiaohui Li,

Zhiqi Su,

Shiting Wu

et al.

Small, Journal Year: 2024, Volume and Issue: unknown

Published: Sept. 23, 2024

Abstract The rational design of S‐scheme photocatalysts, achieved by serially integrating two different semiconductors, represents a promising strategy for efficient charge separation and amplified photocatalytic performance, yet it remains challenge. Herein, ZnIn 2 S 4 (ZIS) oxygen‐doped (O‐ZIS) nanosheets are chosen to construct homojunction catalyst architecture. Theoretical simulations alongside comprehensive in situ ex characterizations confirm that ZIS O‐ZIS with noncentrosymmetric layered structures can generate polarization‐induced bulk‐internal electric field (IEF) within the crystal. A robust interface‐IEF is also created strong interfacial interaction between work functions. Owing these features, O‐ZIS/ZIS adopts an directional transfer route, wherein photoexcited electrons holes concurrently migrate their interface subsequently recombine. This enables spatial provides high driving force both reduction oxidation reactions simultaneously. Consequently, such photocatalyst exhibits H evolution rate up 142.9 µmol h −1 without any cocatalysts, which 4.6‐ 3.4‐fold higher than pristine O‐ZIS, respectively. Benzaldehyde produced as value‐added product 146.9 . offers new perspective on systems.

Language: Английский

S‐Scheme g‐C3N4/CdS Heterostructures Grafting Single Pd Atoms for Ultrafast Charge Transport and Efficient Visible‐Light‐Driven H2 Evolution DOI
Rongjie Li, Huaxing Li, Xidong Zhang

et al.

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: 34(38)

Published: May 11, 2024

Abstract Emerging step‐scheme (S‐scheme) heterostructures hold unique superiority in steering directional charge transport and reinforcing redox capacity, yet rational modification of S‐scheme by single atoms (SAs) for efficient photocatalytic H 2 evolution is rarely reported. In this work, Pd SAs‐modulated organic–inorganic g‐C 3 N 4 /CdS are designed prepared a one‐pot mechanochemical approach allowing nanosheets/CdS nanoparticles to confine atomically dispersed co‐catalysts. The charge‐transfer pathway corroborated combination situ irradiated X‐ray photoelectron spectroscopy, electron paramagnetic resonance, Kelvin probe force microscopy. Density functional theory (DFT) calculations, high‐angle annular dark‐field scanning transmission microscopy, absorption fine structure identify Pd‐S Pd‐N atomic moieties underpinned the electronic interaction between SAs heterostructures, which d ‐band center optimized proton adsorption thermodynamically. Further, alongside concert boost rapid migration photogenerated electrons (1.05 ps) via Pd─S Pd─N bond‐derived channels. A maximal rate 85.66 mmol h −1 g achieved 1 wt% Pd‐20 hierarchical composites. This work may guide design high‐efficiency S‐scheme‐based photocatalysts solar‐to‐H conversion beyond.

Language: Английский

Citations

23

Progress of Covalent Organic Framework Photocatalysts: From Crystallinity–Stability Dilemma to Photocatalytic Performance Improvement DOI

Huili Ran,

Quanlong Xu, Yun Yang

et al.

ACS Catalysis, Journal Year: 2024, Volume and Issue: 14(15), P. 11675 - 11704

Published: July 22, 2024

Language: Английский

Citations

21

Zinc mediated electronic structure of CoP toward photocatalytic H2 evolution DOI

Qiang Yu,

Shuhan Sun,

Alain R. Puente Santiago

et al.

Applied Catalysis B Environment and Energy, Journal Year: 2025, Volume and Issue: unknown, P. 125098 - 125098

Published: Jan. 1, 2025

Language: Английский

Citations

7

Modulation of Schottky Barrier Height and Electronic Structure in Transition-Metal@Nitrogen-Doped-Carbon Core–Shell Cocatalysts Loaded with MnxCd1–xS Nanorods for Enhanced Photocatalytic Hydrogen Evolution DOI
Yufeng Li, Songqing Zhang, Chunmei He

et al.

ACS Catalysis, Journal Year: 2025, Volume and Issue: unknown, P. 2315 - 2327

Published: Jan. 24, 2025

Language: Английский

Citations

6

Reinforced Hole Trapping in S‐Scheme Photoharvesters for Markedly Enhanced Photocatalytic Hydrogen Evolution and Nitrogen Fixation DOI Open Access
Xiaoyan Lu, Jindou Hu, Xinhui Jiang

et al.

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

Published: March 7, 2025

Abstract The S‐scheme heterojunction exerts a profoundly positive influence on enhancing carrier separation efficiency and redox capability. However, there are few reports accelerating the reaction rate of photogenerated charge carriers, particularly consumption holes in heterojunction. Herein, an situ construction strategy is employed to construct ultra‐small nonprecious metal NiO (≈2 nm) By incorporating into heterojunctions, photocatalytic hydrogen production performance significantly improved by 380 times, nitrogen fixation enhanced 20 times. Density function theoretical (DFT) calculations, X‐ray photoelectron spectroscopy (in XPS), Diffuse Reflectance Infrared Fourier Transform Spectroscopy DRIFTS) characterization results indicate that incorporation heterojunctions can not only enhance photo‐generated carriers ability but also further promote sacrificial agents, thereby achieving secondary enhancement efficiency. Therefore, (H 2 ) (N markedly improved. successful execution this work provides novel approach material structure design, offering valuable insights for development improvement high‐performance materials.

Language: Английский

Citations

4

Construction and Embedding of Oxygen Vacancies in Organic-Inorganic S-scheme Heterojunctions for Optimizing the Photocatalytic Degradation Performance of PDI-Nb/BiVO4 towards Antibiotics DOI
Nan Li, Yu‐Hua Niu,

Wengang An

et al.

Applied Catalysis B Environment and Energy, Journal Year: 2025, Volume and Issue: unknown, P. 125141 - 125141

Published: Feb. 1, 2025

Language: Английский

Citations

3

2D/2D F-doped TiO2/CdS S-scheme heterojunction photocatalyst for enhanced photocatalytic H2 generation DOI
Wenjing Fu, Shun Wang,

Yingjie Zhang

et al.

Journal of Material Science and Technology, Journal Year: 2025, Volume and Issue: unknown

Published: March 1, 2025

Language: Английский

Citations

3

Chemically bonded nonmetallic LSPR S-scheme hollow heterostructure for boosting photocatalytic performance DOI
Yu Che, Bo Weng, Kejian Li

et al.

Applied Catalysis B Environment and Energy, Journal Year: 2024, Volume and Issue: unknown, P. 124656 - 124656

Published: Sept. 1, 2024

Language: Английский

Citations

15

Heterostructured Photocatalysts for Water Splitting and the Interfacial Charge Transfer DOI
Yazhuo Zheng, Erpeng Wang, Jian Zhou

et al.

ACS Materials Letters, Journal Year: 2024, Volume and Issue: unknown, P. 3572 - 3601

Published: July 15, 2024

Language: Английский

Citations

11

Co Nanoparticles on MnO: Electron Transfer through Ohmic and S-Scheme Heterojunction for Photocatalytic Hydrogen Evolution DOI
Peizhen Wang, Fei Jin, Cheng Yang

et al.

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

Published: Feb. 4, 2025

The photocatalytic hydrolysis method represents a significant potential solution to the dual challenges of energy security and environmental sustainability. selection suitable materials systems is paramount importance for successful implementation hydrogen production technology. In this study, in situ reduction Co nanoparticles on MnO was successfully performed by calcining MnCo-PBA. Furthermore, graphdiyne (GDY) introduced physical agitation. introduction GDY reduced Co/MnO agglomeration made Co/MnO/GDY catalyst exhibit high activity production, with an optimum rate 2117.33 μmol·g-1·h-1, which 4.88 2.67 times higher than that Co/MnO, respectively. results photoelectrochemical test indicate composite has better photogenerated carrier separation efficiency. X-ray photoelectron spectroscopy, density functional theory calculations, electron paramagnetic resonance were used investigate transfer mechanism during process, confirming presence S-scheme heterojunction ohmic junction, enhance carriers. GDY-based constructed study significantly bimetallic catalysts.

Language: Английский

Citations

2