Highly Efficient Nanostructured Bi<sub>2</sub>WO<sub>6</sub> Thin Film Electrodes for Photoelectrochemical and Environment Remediation

Nanostructured Bi<sub>2</sub>WO<sub>6</sub> thin film electrodes with enhanced solar energy conversion and photocatalytic properties have been fabricated using Aerosol-Assisted Chemical Vapor Deposition (AACVD). By conveniently controlling the deposition process parameters, B...

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书目详细资料
Main Authors: Bandar Y. Alfaifi, Hossein Bayahia, Asif Ali. Tahir
格式: 文件
语言:English
出版: MDPI AG 2019-05-01
丛编:Nanomaterials
主题:
在线阅读:https://www.mdpi.com/2079-4991/9/5/755
实物特征
总结:Nanostructured Bi<sub>2</sub>WO<sub>6</sub> thin film electrodes with enhanced solar energy conversion and photocatalytic properties have been fabricated using Aerosol-Assisted Chemical Vapor Deposition (AACVD). By conveniently controlling the deposition process parameters, Bi<sub>2</sub>WO<sub>6</sub> electrodes were fabricated with nanoplates and hierarchical buckyball-shaped microsphere structures morphology. A detailed study has been conducted to correlate the structure and morphology with the photoelectrochemical (PEC) and photocatalytic dye degradation performance. The PEC investigations revealed that the hierarchical buckyball-shaped microsphere structured Bi<sub>2</sub>WO<sub>6</sub> electrodes have shown the photocurrent density of 220 &#956;Acm<sup>&#8722;2</sup> while nanoplates have a photocurrent density of 170 &#956;Acm<sup>&#8722;2</sup> at 0.23 V (vs. Ag/AgCl/3M KCl) under AM1.5 illumination. The PEC characterization of Bi<sub>2</sub>WO<sub>6</sub> electrodes also reveals that the photocurrent density and photocurrent onset potential is strongly dependent on the orientation and morphology, hence the deposition parameters. Similarly, the methylene blue (MB) and rhodamine B (RhB) photodegradation performance of Bi<sub>2</sub>WO<sub>6</sub> electrodes also show a strong correlation with morphology. This finding provides an appropriate route to engineer the energetic and interfacial properties of Bi<sub>2</sub>WO<sub>6</sub> electrode to enhance solar energy conversion and the photocatalytic performance of semiconductor materials.
ISSN:2079-4991