Fabrication CdS/Au/TiO2 sandwich nanofibers for enhanced photoelectrochemical water-splitting efficiency
Vol. 129 No. 1B (2020), Original Article
Vol. 129 No. 1B (2020)

Fabrication CdS/Au/TiO2 sandwich nanofibers for enhanced photoelectrochemical water-splitting efficiency

Original Article
https://doi.org/10.26459/hueuni-jns.v129i1B.5763
Published 2020-06-22
Van Nghia Nguyen
Department of Physics and Materials Science, Faculty of Natural Sciences, Quy Nhon University, 170 An Duong Vuong St., QuyNhon City, Vietnam
https://orcid.org/0000-0001-8172-5983
Manh Son Nguyen
Faculty of Physics, University of Sciences, Hue University, 77 Nguyen Hue St., Hue, Vietnam
Minh Thuy Doan
Department of Physics and Materials Science, Faculty of Natural Sciences, Quy Nhon University, 170 An Duong Vuong St., QuyNhon City, Vietnam
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Keywords

electrospinning
water splitting
TiO2 nanofibers
sandwich-structured
PEC

How to Cite

1.
Nguyen VN, Nguyen MS, Doan MT. Fabrication CdS/Au/TiO2 sandwich nanofibers for enhanced photoelectrochemical water-splitting efficiency. hueuni-jns [Internet]. 2020Jun.22 [cited 2024Dec.22];129(1B):15-23. Available from: https://jos.hueuni.edu.vn/index.php/hujos-ns/article/view/5763
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Abstract

The sandwich-structured CdS/Au/TiO2 nanofibers (NFs) act as a photoanode in the photoelectrochemical cell (PEC) for hydrogen generation by splitting water. The gold nanoparticles sandwiched between the TiO2 nanofibers and the CdS quantum dots (QDs) layers play an important role in enhancing the solar-to-chemical-energy conversion efficiency. The structure and morphology of the materials were characterized by using field-emission scanning electron microscopy (FE–SEM), transmission electron microscopy (TEM) and X-ray diffraction (XRD). The surface plasmon resonance (SPR) of the Au nanoparticles was investigated by using ultraviolet-visible (UV–Vis) diffuse reflectance spectroscopy. The PEC properties of the photoanode were measured on a three-electrode electrochemical analyzer. The obtained photoconversion efficiency of the CdS/Au/TiO2 NFs is 4.1% under simulated-sunlight illumination with a 150 W xenon lamp. Working photoelectrode stability was tested, and the mechanism of the enhanced PEC performance was discussed.

https://doi.org/10.26459/hueuni-jns.v129i1B.5763
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