Effect of Laser Energy Density on Photophysical and Photocatalytic Properties of BiVO4 Single‐Crystal Thin Film DOI
Shiwen Kou, Qiaonan Yu, Guoqiang Li

et al.

Energy Technology, Journal Year: 2024, Volume and Issue: unknown

Published: May 14, 2024

The single‐crystal thin films are more conducive to an in‐depth understanding of the intrinsic mechanism photocatalytic reaction. Herein, BiVO 4 thin‐films prepared on (001)‐oriented yttrium‐stabilized zirconia (YSZ (001)) substrates using pulsed laser deposition at a different energy density 42–102 mJ cm −2 . results X‐Ray diffraction reveal that samples all have monoclinic scheelite structure and grow epitaxially along b‐axis orientation. With increase in power density, peak positions Bi 4f, V 2p, O 1s photoelectron spectroscopy shift toward higher binding energies, visible light absorption ability also weakens. film 42 exhibits high activity good stability degradation Rhodamine B (RhB). trapping experiments prove holes (h + ) hydroxyl radicals (·OH) main active species.

Language: Английский

Systematic Constructing FeOCl/BiVO4 Hetero‐Interfacial Hybrid Photoanodes for Efficient Photoelectrochemical Water Splitting DOI
Yuxuan Chen,

Xiaolin Li,

Hao Yang

et al.

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

Published: May 8, 2024

Abstract Bismuth vanadate (BiVO 4 ), as a promising photoanode for photoelectrochemical (PEC) water splitting, suffers from poor charge separation efficiency and light absorption efficiency. Herein, iron oxychloride (FeOCl) is introduced novel cocatalyst simply grafted on BiVO to construct an integrated photoanode, enhancing PEC performance. The optimized FeOCl/BiVO exhibits superior photocurrent density value of 5.23 mA cm −2 at 1.23 V versus reversible hydrogen electrode (RHE) under AM 1.5G illuminations. From experimental analysis, such high performance ascribed the unique properties FeOCl, facilitating transport, increasing efficiency, promoting oxidation kinetics. Density functional theory calculations further confirm that FeOCl optimizes Gibbs free energy H O‐containing intermediates (OOH * ) during processes, boosting catalytic kinetics splitting. This work presents catalyst constructing efficient water‐splitting photoanodes.

Language: Английский

Citations

38
Accelerating Surface Reaction Kinetics and Enhancing Bulk as well as Surface Charge Carrier Dynamics in Al/ Al2O3‐Coated BiVO4 Photoanode DOI
Tao Jiang, Wenzhong Wang, Yue Bi

et al.

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: unknown

Published: April 18, 2024

Abstract Photoelectrochemical (PEC) hydrogen evolution from water splitting of semiconductor photoanodes is intricately linked to their light‐absorbing capacity, surface reaction kinetics, bulk charge carrier separation efficiency, and injection efficiency. Harnessing the plasmon resonance effect metals emerges as a promising approach enhance PEC performance photoanodes. This work presents first application non‐noble metal Al nanoparticles sensitize BiVO 4 nanoporous film (NPF) photoanode. process significantly expedites kinetics oxidation, improves both efficiencies NPF Additionally, surface‐formed 2 O 3 effectively preserves stability photoanode, leading substantial improvement in photoanode three‐electrode cell with sulfite scavenger. The constructed /Al heterojunction exhibits rate 73.9 µmol cm⁻ h⁻¹ at 1.23 V versus reversible electrode, 1.68 times excellent under long‐time light irradiation 8 h. study provides valuable insights into design nonnoble‐metal‐based plasmonic for efficient generation through perspectives injection, separation.

Language: Английский

Citations

9
Surface Engineering of BiVO4 Photoanodes for Photoelectrochemical Water Splitting: Recent Advances DOI
Prabhakarn Arunachalam, Mabrook S. Amer, Abdullah M. Al‐Mayouf

et al.

ChemCatChem, Journal Year: 2024, Volume and Issue: 16(14)

Published: April 29, 2024

Abstract Energy demand worldwide demands clean, cheap, and renewable energy. Through the use of photoelectrochemical (PEC) conversion, solar energy can be transformed into chemical Bismuth vanadate (BiVO 4 ), a material exhibiting visible light activity, favourable conduction band edge energies, ease synthesis, has become increasingly popular in recent years. In BiVO4, charge carriers recombine rapidly, which adversely affects PEC performance stability. There have been several strategies developed to mitigate these deficiencies, including novel heterojunctions, doping with metals, coupling cocatalysts, interface modification modifying morphology. To achieve best results, it is required develop devices exceptional cost‐to‐efficiency ratios long‐term durability. This review also examines yet commercially viable applications for BiVO ‐based photoanodes. Lastly, we discuss challenges perspectives facing water splitting systems based on .

Language: Английский

Citations

8
A Type-II CQDs regulating FeOOH decorated BiVO4 photoelectrode for highly efficient photoelectrochemical degradation of tetracycline DOI

Shuai Zhu,

Xiaohui Li,

Qinge Fan

et al.

Separation and Purification Technology, Journal Year: 2024, Volume and Issue: 351, P. 128132 - 128132

Published: May 26, 2024

Language: Английский

Citations

8
Interface engineering for photoelectrochemical oxygen evolution reaction DOI

Yequan Xiao,

Jie Fu, Yuriy Pihosh

et al.

Chemical Society Reviews, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 16, 2024

This comprehensive review provides a holistic overview of recent advances in interface engineering strategies for photoelectrochemical water oxidation, highlighting their role improving device efficiency and stability.

Language: Английский

Citations

6
Facile Combination of Bismuth Vanadate with Nickel Tellurium Oxide for Efficient Photoelectrochemical Catalysis of Water Oxidation Reactions DOI Creative Commons
Yu-Hsuan Chiu, Ren‐Jei Chung,

Chutima Kongvarhodom

et al.

ACS Applied Materials & Interfaces, Journal Year: 2024, Volume and Issue: 16(37), P. 49249 - 49261

Published: Sept. 5, 2024

Bismuth vanadate (BVO) having suitable band edges is one of the effective photocatalysts for water oxidation, which rate-determining step in splitting process. Incorporating cocatalysts can reduce activation energy, create hole sinks, and improve photocatalytic ability BVO. In this work, visible light active nickel tellurium oxide (NTO) used as cocatalyst on BVO photoanode to properties. Different NTO amounts are deposited balance optical electrical contributions. Higher absorbance charge cascades developed composite (NTO/BVO). The highest photocurrent density 6.05 mA/cm

Language: Английский

Citations

5
Interfacial Microenvironment Modulation Enhancing Electron Transfer between Quasi-MOFs and Defective Semiconductor Arrays for Enhanced Photocatalytic Sterilization DOI
Rui Li,

Xuan Zuo,

Jingwen Lu

et al.

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

Published: March 26, 2025

Interfacial electron transfer between an inorganic semiconductor and a metal–organic framework (MOF) is the key to photocatalysis in composite photocatalytic system. The construction of structural defects single or MOF has been regarded as effective method for enhancing its performance. However, how microenvironment modulation sites defective semiconductors MOFs (quasi-MOFs) affects disinfection activity worth studying. Herein, integration their crystal defect achieved by directly dropping ZIF-8 suspension onto bismuth vanadate (BiVO4) nanoarray subsequently activating it through low-temperature (300 °C) calcination under N2 atmosphere. Compared with original BiVO4 nanoarray, (BiVO4-N2), BiVO4-ZIF-8 (BiVO4-ZIF-8)-N2 exhibits enhanced (6.63 log10 CFU mL–1 after 4 h simulated sunlight irradiation) due improved sluggish kinetics transfer. In situ irradiated operando near-ambient pressure XPS (NAP-XPS) confirms interfacial transfer, which can greatly modulate site thus lead efficient photocatalysis. This work presents simple strategy adjust optimize bactericidal

Language: Английский

Citations

0
Titanium‐Doped Hematite Homojunction Photoanodes Based on Nanorod/Nanobowl Arrays for Efficient Solar Water Splitting DOI Creative Commons
Kexin Ren, Zihao Wu, Simin Zhang

et al.

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

Published: April 18, 2025

ABSTRACT Hematite is a promising candidate material for photoanodes, but the efficiency of state‐of‐the‐art hematite photoanodes limited by low absorption coefficient, short hole diffusion length, and slow water oxidation kinetics. In this work, high‐efficiency photoanode was designed fabricated introducing titanium‐doped (Ti:Fe 2 O 3 ) homojunction with different doping contents hierarchical nanorod/nanobowl array structure. The homojuction consisted Ti nanorods grown on high nanobowl arrays, leading to formation broad built‐in electric field, significantly enhancing charge separation transfer within bulk. Furthermore, radially inside bowls bowl edges enabled enhanced light through multiple scattering while offering larger electrode–electrolyte contact area providing more reaction sites. Compared Ti:Fe nanorod exhibited an increase in photocurrent density from 1.6 mA cm −2 3.0 at 1.23 V versus RHE, maintaining long‐term stability over 100 h RHE. This study not only achieved high‐performance also provided new perspective design differently desired nanostructures.

Language: Английский

Citations

0
Synthesis of Terminal Bifunctional Aliphatic Compounds via Catalytic Oxidation of 1,6‐Hexanediol Over Pt‐Loaded BiVO4 DOI

Zhaoxin Li,

Zewen Shen,

Haotian Zhang

et al.

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

Published: April 22, 2025

Abstract Terminal bifunctional aliphatic compounds are important intermediates for synthesis of drugs, food additives, polymers, while oxidative conversion from diols in mild conditions and the insight mechanism rarely investigated. In this work, Pt‐loaded BiVO 4 (4%Pt/S‐BVO 4%Pt/H‐BVO) is proposed to be utilized oxidation 1,6‐hexanediol (1,6‐HDO). dark conditions, electronic metal‐support interactions between Pt abundant oxygen vacancies (OVs) activated C‐H O 2 , leading primary terminal hydroxyl group 1,6‐HDO. The generated·O − radicals enable further aldehyde carboxyl group. With illumination, photo‐generated holes promoted increased ·O introduced heat originated photothermal effect an additional source supposed boost mass transfer molecules radicals. particular, with more OVs exposed {040} facets, radicals, improved charge separation, 4%Pt/S‐BVO exhibit 90% 1,6‐HDO selectivity 98.6% TBACs 6 h. Those findings highlight great promise catalytic organics transformation by integrating solar energy enhance reaction efficiency.

Language: Английский

Citations

0
BiVO4 Film Coupling with CoAl2O4 Nanoparticles for Photoelectrochemical Water Splitting Utilizing Broad Solar Spectrum through p–n Heterojunction, Photothermal, and Cocatalytic Synergism DOI
Yujie Huang,

Binyao Liu,

Yiwen Yang

et al.

Langmuir, Journal Year: 2024, Volume and Issue: 40(35), P. 18670 - 18682

Published: Aug. 20, 2024

Water oxidation is an endothermic and kinetics-sluggish reaction; the research of photoanodes with photothermal cocatalytic properties great significance. Herein, BiVO

Language: Английский

Citations

2