Chemically synthesized facet-controlled visible light active BiVO4 thin films for photoelectrochemical water splitting

被引:4
作者
Kulkarni, Shirin P. [1 ]
Chitare, Yogesh M. [1 ]
Magdum, Vikas V. [1 ]
Sawant, Prashant D. [1 ]
Talekar, Shweta V. [1 ]
Pawar, Shraddha A. [1 ]
Patil, Umakant M. [1 ]
Gurav, Kishor V. [2 ]
Malavekar, Dhanaji B. [3 ]
Pawar, Amol U. [4 ]
Gunjakar, Jayavant L. [1 ]
机构
[1] Deemed Univ, Ctr Interdisciplinary Res, DY Patil Educ Soc, Kolhapur 416006, MS, India
[2] Devchand Coll, Dept Phys, Energy Convers & Storage Res Lab, Arjunnagar 591237, MS, India
[3] Chonnam Natl Univ, Optoelect Convergence Res Ctr, Dept Mat Sci & Engn, Gwangju 61186, South Korea
[4] Korea Inst Energy Technol, Environm & Climate Technol, Naju Si 58219, Jeollanamdo, South Korea
来源
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING | 2023年 / 129卷 / 12期
关键词
BiVO4; CBD; Microstructure; Photoanode; Photoelectrochemical performance; Water splitting; PHOTOANODES; PHOTOCATALYSIS; DEGRADATION; GENERATION; DEPOSITION; MORPHOLOGY; HYDROXIDE; OXIDATION; DYE;
D O I
10.1007/s00339-023-07164-1
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The facile and cost-effective chemical bath deposition (CBD) method is used to synthesize highly photoactive facet-controlled bismuth vanadate (BiVO4) thin films on glass and stainless steel (SS) substrates. The facet-controlled BiVO4 thin films are synthesized by variation in anionic precursor with fine tuning of chemical bath pH from alkaline to acidic media. The variation of anionic precursor evolves the morphology of BiVO4 from dispersed nanoparticles to faceted microcrystals. Furthermore, the fine-tuning of chemical bath pH leads to the well-defined octahedral BiVO4 microcrystals. Compared to dispersed nanoparticulate BiVO4 photoanodes, the octahedral BiVO4 photoanodes demonstrated superior photocurrent density of 2.75 mA cm(-2) (at 1.23 V vs. RHE), good photostability and charge separation efficiency (45.5%) owing to their excellent PEC reaction kinetics. The present study underscores the usefulness of the CBD method for facet-controlled synthesis of semiconducting thin films for different photo-functional applications.
引用
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页数:13
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