Tailoring the morphological structure of BiVO4 photocatalyst for enhanced photoelectrochemical solar hydrogen production from natural lake water

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journal

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Author(s)

  • Mohamad Fakhrul Ridhwan Samsudin
  • Robabeh Bashiri
  • Norani Muti Mohamed
  • Yun Hau Ng
  • Suriati Sufian

Related Research Unit(s)

Detail(s)

Original languageEnglish
Article number144417
Journal / PublicationApplied Surface Science
Volume504
Online published26 Oct 2019
Publication statusPublished - 28 Feb 2020

Abstract

Solar hydrogen production via natural lake water was investigated via monoclinic bismuth vanadate (BiVO4) photocatalyst in a tandem photoelectrochemical cell (PEC), which was made up via integrating a PEC system with a dye-sensitized solar cell (DSSCs) in a series. Herein, the visible-light-driven BiVO4 photocatalysts were synthesized via a simple hydrothermal treatment reaction. A mathematical representation for optimizing the synthesizing condition of BiVO4, namely pH and the hydrothermal temperature was successfully generated via response surface methodology (RSM). The BiVO4 sample prepared at pH = 1.96 and hydrothermal treatment at 120 °C (Run 4) exhibited remarkable photocatalytic hydrogen performance of 9.52 mmol/h within 7 h. In addition, the observed photocurrent density and photoconversion efficiency were 5.66 mA/cm2 at 0.7 V and 0.056%, respectively. The profound performance observed was attributed to the low photocharge carrier resistance and a more negative flat band potential for PEC water splitting system. This work demonstrates the feasibility of producing hydrogen from abundant natural lake water via BiVO4 photocatalyst.

Research Area(s)

  • BiVO4, Hydrogen, Lake water, Photoelectrochemical cell, Solar energy materials, Thin films

Citation Format(s)

Tailoring the morphological structure of BiVO4 photocatalyst for enhanced photoelectrochemical solar hydrogen production from natural lake water. / Samsudin, Mohamad Fakhrul Ridhwan; Bashiri, Robabeh; Mohamed, Norani Muti; Ng, Yun Hau; Sufian, Suriati.

In: Applied Surface Science, Vol. 504, 144417, 28.02.2020.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journal