Kajian awal sifat fotokimia bahan warna semulajadi Curcuma longa L. dan Lawsonia inermis L. sebagai pemeka fotoelektrod TiO2

Translated title of the contribution: Preliminary study of natural pigments photochemical properties of Curcuma longa L. and Lawsonia inermis L. as TiO2 photoelectrode sensitizer

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8 Citations (Scopus)

Abstract

Curcumin and lawsone dyes extracted from turmeric (Curcuma longa L.) and henna (Lawsonia inermis L.) are used to investigate their possibility as photosensitizers on a TiO2 photoelectrode, respectively. The natural dyes undergo simple cold extraction techniques without further purification. The photochemical properties are studied by FT-IR spectroscopy and UV-Vis spectrophotometer. The FTIR spectra revealed that the presence of hydroxyl and carbonyl functional groups in both dyes indicated the presence of important characteristics in a sensitizer to graft on to TiO2 photoelectrode. The broad range of absorption peak wavelength obtained in this work shows that curcumin and lawsone are promising candidates for efficient sensitizers in dye-sensitized solar cells (DSSC). The maximum absorption peak attributed for curcumin and lawsone are 425 nm and 673 nm. The optical bandgaps calculated are2.48 eV and 1.77 eV, respectively. The findings indicated the potential of naturally obtained dyes to act as photosensitizers in DSSC.

Original languageMalay
Pages (from-to)1243-1249
Number of pages7
JournalMalaysian Journal of Analytical Sciences
Volume19
Issue number6
Publication statusPublished - 2015

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Pigments
Curcumin
Coloring Agents
Photosensitizing Agents
Ultraviolet spectrophotometers
Optical band gaps
Grafts
Hydroxyl Radical
Functional groups
Purification
Infrared spectroscopy
Wavelength
lawsone
Dye-sensitized solar cells

ASJC Scopus subject areas

  • Analytical Chemistry

Cite this

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title = "Kajian awal sifat fotokimia bahan warna semulajadi Curcuma longa L. dan Lawsonia inermis L. sebagai pemeka fotoelektrod TiO2",
abstract = "Curcumin and lawsone dyes extracted from turmeric (Curcuma longa L.) and henna (Lawsonia inermis L.) are used to investigate their possibility as photosensitizers on a TiO2 photoelectrode, respectively. The natural dyes undergo simple cold extraction techniques without further purification. The photochemical properties are studied by FT-IR spectroscopy and UV-Vis spectrophotometer. The FTIR spectra revealed that the presence of hydroxyl and carbonyl functional groups in both dyes indicated the presence of important characteristics in a sensitizer to graft on to TiO2 photoelectrode. The broad range of absorption peak wavelength obtained in this work shows that curcumin and lawsone are promising candidates for efficient sensitizers in dye-sensitized solar cells (DSSC). The maximum absorption peak attributed for curcumin and lawsone are 425 nm and 673 nm. The optical bandgaps calculated are2.48 eV and 1.77 eV, respectively. The findings indicated the potential of naturally obtained dyes to act as photosensitizers in DSSC.",
keywords = "Curcumin, DSSC, Lawsone, Natural photosensitizer, Optical band gap",
author = "Safie, {Nur Ezyanie} and {Ahmad Ludin}, Norasikin and Su'ait, {Mohd Sukor} and Hamid, {Norul Hisham} and Suhaila Sepeai and Ibrahim, {Mohd. Adib} and {Mat Teridi}, {Mohd Asri}",
year = "2015",
language = "Malay",
volume = "19",
pages = "1243--1249",
journal = "Malaysian Journal of Analytical Sciences",
issn = "1394-2506",
publisher = "Faculty of Science and Technology, Universiti Kebangsaan Malaysia",
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TY - JOUR

T1 - Kajian awal sifat fotokimia bahan warna semulajadi Curcuma longa L. dan Lawsonia inermis L. sebagai pemeka fotoelektrod TiO2

AU - Safie, Nur Ezyanie

AU - Ahmad Ludin, Norasikin

AU - Su'ait, Mohd Sukor

AU - Hamid, Norul Hisham

AU - Sepeai, Suhaila

AU - Ibrahim, Mohd. Adib

AU - Mat Teridi, Mohd Asri

PY - 2015

Y1 - 2015

N2 - Curcumin and lawsone dyes extracted from turmeric (Curcuma longa L.) and henna (Lawsonia inermis L.) are used to investigate their possibility as photosensitizers on a TiO2 photoelectrode, respectively. The natural dyes undergo simple cold extraction techniques without further purification. The photochemical properties are studied by FT-IR spectroscopy and UV-Vis spectrophotometer. The FTIR spectra revealed that the presence of hydroxyl and carbonyl functional groups in both dyes indicated the presence of important characteristics in a sensitizer to graft on to TiO2 photoelectrode. The broad range of absorption peak wavelength obtained in this work shows that curcumin and lawsone are promising candidates for efficient sensitizers in dye-sensitized solar cells (DSSC). The maximum absorption peak attributed for curcumin and lawsone are 425 nm and 673 nm. The optical bandgaps calculated are2.48 eV and 1.77 eV, respectively. The findings indicated the potential of naturally obtained dyes to act as photosensitizers in DSSC.

AB - Curcumin and lawsone dyes extracted from turmeric (Curcuma longa L.) and henna (Lawsonia inermis L.) are used to investigate their possibility as photosensitizers on a TiO2 photoelectrode, respectively. The natural dyes undergo simple cold extraction techniques without further purification. The photochemical properties are studied by FT-IR spectroscopy and UV-Vis spectrophotometer. The FTIR spectra revealed that the presence of hydroxyl and carbonyl functional groups in both dyes indicated the presence of important characteristics in a sensitizer to graft on to TiO2 photoelectrode. The broad range of absorption peak wavelength obtained in this work shows that curcumin and lawsone are promising candidates for efficient sensitizers in dye-sensitized solar cells (DSSC). The maximum absorption peak attributed for curcumin and lawsone are 425 nm and 673 nm. The optical bandgaps calculated are2.48 eV and 1.77 eV, respectively. The findings indicated the potential of naturally obtained dyes to act as photosensitizers in DSSC.

KW - Curcumin

KW - DSSC

KW - Lawsone

KW - Natural photosensitizer

KW - Optical band gap

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