Photoelectrochemical analysis of titanium dioxide by using oxalic acid as a sacrificial donor

Research output: Research - peer-reviewArticle

Abstract

Photoelectrochemical (PEC) water splitting is a very promising green method produce solar fuel. Titanium dioxide (TiO2) has been widely used as photocatalyst fothis type of reaction. Improving the performance of TiO2 for PEC water splitting has beeongoing and addition of sacrificial donor especially from waste is an attractive optioto achieve this. Oxalic acid is one component in organic waste stream that can bused as sacrificial donor. The TiO2 thin films has been fabricated by coating TiO2 paston Fluorine Tin oxide (FTO) glass surface. The morphology of the TiO2 thin films werporous and rough with uniform particles size with crystallite size of about 20 nm andominant anatase peak. The TiO2 photoelectrode undergo PEC testing to measure photolectroactivity by using oxalic acid as a sacrificial donor in two different type electrolytes which are distilled water and sodium sulfate (NA2SO4) aqueous solution. Thphotocurrent produced without addition of oxalic acid is much lower than with thacid. The saturation photocurrent for aqueous NA2SO4 solution and water electrolyte 0.1 mA/cm2 and negligible respectively. While the photocurrent for addition of oxaliacid in NA2SO4 aqueous solution is 0.5 mA/cm2 and the photocurrent for oxalic acid water only is 0.9 mA/cm2, which is almost double compared to in NA2SO4 and tenfolin water only. The highest photocurrent produced by TiO2 photoelectrode is by additioof oxalic acid in aqueous (H2O) electrolyte.

LanguageEnglish
Pages125-130
Number of pages6
JournalJurnal Teknologi
Volume79
Issue number5-3
DOIs
StatePublished - 2017

Fingerprint

Oxalic acid
Titanium dioxide
Water
Photocurrents
Electrolytes
Thin films
Sodium sulfate
Crystallite size
Photocatalysts
Tin oxides
Fluorine
Particle size
Glass
Coatings
Testing

Keywords

  • Donor
  • Oxalic acid
  • Photoelectrochemical cell
  • Titanium dioxide
  • Water splitting

ASJC Scopus subject areas

  • Engineering(all)

Cite this

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title = "Photoelectrochemical analysis of titanium dioxide by using oxalic acid as a sacrificial donor",
abstract = "Photoelectrochemical (PEC) water splitting is a very promising green method produce solar fuel. Titanium dioxide (TiO2) has been widely used as photocatalyst fothis type of reaction. Improving the performance of TiO2 for PEC water splitting has beeongoing and addition of sacrificial donor especially from waste is an attractive optioto achieve this. Oxalic acid is one component in organic waste stream that can bused as sacrificial donor. The TiO2 thin films has been fabricated by coating TiO2 paston Fluorine Tin oxide (FTO) glass surface. The morphology of the TiO2 thin films werporous and rough with uniform particles size with crystallite size of about 20 nm andominant anatase peak. The TiO2 photoelectrode undergo PEC testing to measure photolectroactivity by using oxalic acid as a sacrificial donor in two different type electrolytes which are distilled water and sodium sulfate (NA2SO4) aqueous solution. Thphotocurrent produced without addition of oxalic acid is much lower than with thacid. The saturation photocurrent for aqueous NA2SO4 solution and water electrolyte 0.1 mA/cm2 and negligible respectively. While the photocurrent for addition of oxaliacid in NA2SO4 aqueous solution is 0.5 mA/cm2 and the photocurrent for oxalic acid water only is 0.9 mA/cm2, which is almost double compared to in NA2SO4 and tenfolin water only. The highest photocurrent produced by TiO2 photoelectrode is by additioof oxalic acid in aqueous (H2O) electrolyte.",
keywords = "Donor, Oxalic acid, Photoelectrochemical cell, Titanium dioxide, Water splitting",
author = "Jaafar, {Siti Nur Hidayah} and Minggu, {Lorna Jeffery} and Khuzaimah Arifin and Mohammad Kassim and Daud, {Wan Ramli Wan}",
year = "2017",
doi = "10.11113/jt.v79.11336",
volume = "79",
pages = "125--130",
journal = "Jurnal Teknologi",
issn = "0127-9696",
publisher = "Penerbit Universiti Teknologi Malaysia",
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AU - Jaafar,Siti Nur Hidayah

AU - Minggu,Lorna Jeffery

AU - Arifin,Khuzaimah

AU - Kassim,Mohammad

AU - Daud,Wan Ramli Wan

PY - 2017

Y1 - 2017

N2 - Photoelectrochemical (PEC) water splitting is a very promising green method produce solar fuel. Titanium dioxide (TiO2) has been widely used as photocatalyst fothis type of reaction. Improving the performance of TiO2 for PEC water splitting has beeongoing and addition of sacrificial donor especially from waste is an attractive optioto achieve this. Oxalic acid is one component in organic waste stream that can bused as sacrificial donor. The TiO2 thin films has been fabricated by coating TiO2 paston Fluorine Tin oxide (FTO) glass surface. The morphology of the TiO2 thin films werporous and rough with uniform particles size with crystallite size of about 20 nm andominant anatase peak. The TiO2 photoelectrode undergo PEC testing to measure photolectroactivity by using oxalic acid as a sacrificial donor in two different type electrolytes which are distilled water and sodium sulfate (NA2SO4) aqueous solution. Thphotocurrent produced without addition of oxalic acid is much lower than with thacid. The saturation photocurrent for aqueous NA2SO4 solution and water electrolyte 0.1 mA/cm2 and negligible respectively. While the photocurrent for addition of oxaliacid in NA2SO4 aqueous solution is 0.5 mA/cm2 and the photocurrent for oxalic acid water only is 0.9 mA/cm2, which is almost double compared to in NA2SO4 and tenfolin water only. The highest photocurrent produced by TiO2 photoelectrode is by additioof oxalic acid in aqueous (H2O) electrolyte.

AB - Photoelectrochemical (PEC) water splitting is a very promising green method produce solar fuel. Titanium dioxide (TiO2) has been widely used as photocatalyst fothis type of reaction. Improving the performance of TiO2 for PEC water splitting has beeongoing and addition of sacrificial donor especially from waste is an attractive optioto achieve this. Oxalic acid is one component in organic waste stream that can bused as sacrificial donor. The TiO2 thin films has been fabricated by coating TiO2 paston Fluorine Tin oxide (FTO) glass surface. The morphology of the TiO2 thin films werporous and rough with uniform particles size with crystallite size of about 20 nm andominant anatase peak. The TiO2 photoelectrode undergo PEC testing to measure photolectroactivity by using oxalic acid as a sacrificial donor in two different type electrolytes which are distilled water and sodium sulfate (NA2SO4) aqueous solution. Thphotocurrent produced without addition of oxalic acid is much lower than with thacid. The saturation photocurrent for aqueous NA2SO4 solution and water electrolyte 0.1 mA/cm2 and negligible respectively. While the photocurrent for addition of oxaliacid in NA2SO4 aqueous solution is 0.5 mA/cm2 and the photocurrent for oxalic acid water only is 0.9 mA/cm2, which is almost double compared to in NA2SO4 and tenfolin water only. The highest photocurrent produced by TiO2 photoelectrode is by additioof oxalic acid in aqueous (H2O) electrolyte.

KW - Donor

KW - Oxalic acid

KW - Photoelectrochemical cell

KW - Titanium dioxide

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