Improvement of Photoelectrochemical water splitting with natural dye of pitaya peel

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The clean and recyclable production of hydrogen gas by water splitting over a semiconductor photocatalyts using solar energy is a promising process. Photoelectrochemical (PEC) water splitting is one of most favourable hydrogen production technologies. The development of TiO<inf>2</inf> semiconductor has been widely studied for its efficiency reasons. However, the large band gap of TiO<inf>2</inf> can only absorb UV light thus reducing its performance in PEC. Besides, recombination of electron-hole pairs also influenced efficiency of photoelectrochemical reaction. Thus, a lot of efforts have been made to increase the performance of PEC and considerably attention is given to dye sensitizers especially natural dye due to their environmental friendliness and low cost. Hence, this research studied the natural dye of pitaya peel which contains betalains due to its availability in local area and low in conservation cost. Thus, the physical and chemical characterization of TiO<inf>2</inf> thin film with dye has been investigated through SEM, XRD and UV-Vis analysis. The optical absorption for the dye is 546 nm show good absorption in visible light with band gap 2.3eV. For photoelectrochemical properties, photoelectrode TiO<inf>2</inf>/dye/PEDOT:PSS has the highest photocurrent which are 0.62 μAcm- and increased further to 1.4 μAcm<sup>-2</sup> with the addition of pitaya dye in aqueous electrolyte.

Original languageEnglish
Title of host publicationIET Seminar Digest
PublisherInstitution of Engineering and Technology
Volume2014
EditionCP659
DOIs
Publication statusPublished - 2014
Event3rd IET International Conference on Clean Energy and Technology, CEAT 2014 - Kuching, Malaysia
Duration: 24 Nov 201426 Nov 2014

Other

Other3rd IET International Conference on Clean Energy and Technology, CEAT 2014
CountryMalaysia
CityKuching
Period24/11/1426/11/14

Fingerprint

Dyes
Water
Energy gap
Semiconductor materials
Hydrogen production
Photocurrents
Ultraviolet radiation
Solar energy
Light absorption
Costs
Conservation
Electrolytes
Availability
Thin films
Hydrogen
Scanning electron microscopy
Electrons
Gases

Keywords

  • Natural dye sensitizer
  • Photoelectrochemical cell
  • Pitaya peel
  • Titanium oxide
  • Water splitting

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

Cite this

Jaafar, S. N. H., Effery Minggu, L., Kassim, M., & Wan Daud, W. R. (2014). Improvement of Photoelectrochemical water splitting with natural dye of pitaya peel. In IET Seminar Digest (CP659 ed., Vol. 2014). Institution of Engineering and Technology. https://doi.org/10.1049/cp.2014.1462

Improvement of Photoelectrochemical water splitting with natural dye of pitaya peel. / Jaafar, Siti Nur Hidayah; Effery Minggu, Lorna; Kassim, Mohammad; Wan Daud, Wan Ramli.

IET Seminar Digest. Vol. 2014 CP659. ed. Institution of Engineering and Technology, 2014.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Jaafar, SNH, Effery Minggu, L, Kassim, M & Wan Daud, WR 2014, Improvement of Photoelectrochemical water splitting with natural dye of pitaya peel. in IET Seminar Digest. CP659 edn, vol. 2014, Institution of Engineering and Technology, 3rd IET International Conference on Clean Energy and Technology, CEAT 2014, Kuching, Malaysia, 24/11/14. https://doi.org/10.1049/cp.2014.1462
Jaafar SNH, Effery Minggu L, Kassim M, Wan Daud WR. Improvement of Photoelectrochemical water splitting with natural dye of pitaya peel. In IET Seminar Digest. CP659 ed. Vol. 2014. Institution of Engineering and Technology. 2014 https://doi.org/10.1049/cp.2014.1462
Jaafar, Siti Nur Hidayah ; Effery Minggu, Lorna ; Kassim, Mohammad ; Wan Daud, Wan Ramli. / Improvement of Photoelectrochemical water splitting with natural dye of pitaya peel. IET Seminar Digest. Vol. 2014 CP659. ed. Institution of Engineering and Technology, 2014.
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