Effect of solvents on extraction and adsorption of natural dyes extracted from cordyline fruticosa and hylocereus polyrhizus

Mahmoud A M Al-Alwani, Abu Bakar Mohamad, Abdul Amir H. Kadhum, Norasikin Ahmad Ludin

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

Different solvents, such as n-hexane, ethanol, acetonitrile, chloroform, ethyl-ether, methanol and water, were used to extract dyes from the leaves of cordyline fruticosa and the fruits of Hylocereus polyrhizus, to be used as sensitizers for dye-sensitized solar cells. The dyes extracted from these species contained chlorophyll, betanin and betaxanthin. Methanol and water were shown to be the best solvents according to the highest absorbance obtained from the dye solutions of C. fruticosa and H. polyrhizus, respectively. The photochemical performance of dyes extracted from C. fruticosa with different solvents mixed with TiO2 indicated that the main effectual solvent was a mixture of methanol and water, in a ratio of 3:1. Meanwhile, water was demonstrated to be the most effective solvent for the H. polyrhizus dye adsorption on TiO2 particles. This study expects the good absorption efficiency of TiO2 with natural dyes to be used for future applications in dye-sensitized solar cell devices.

Original languageEnglish
Pages (from-to)6285-6288
Number of pages4
JournalAsian Journal of Chemistry
Volume26
Issue number18
DOIs
Publication statusPublished - 2014

Fingerprint

Coloring Agents
Adsorption
Methanol
Water
Chlorophyll
Chloroform
Fruits
Ether
Ethanol
Dye-sensitized solar cells

Keywords

  • Cordyline frutkosa
  • Dye-sensitized solar cells
  • Hylocereus polyrhizus
  • Natural dyes
  • Solvents

ASJC Scopus subject areas

  • Chemistry(all)

Cite this

Effect of solvents on extraction and adsorption of natural dyes extracted from cordyline fruticosa and hylocereus polyrhizus. / Al-Alwani, Mahmoud A M; Mohamad, Abu Bakar; Kadhum, Abdul Amir H.; Ahmad Ludin, Norasikin.

In: Asian Journal of Chemistry, Vol. 26, No. 18, 2014, p. 6285-6288.

Research output: Contribution to journalArticle

Al-Alwani, Mahmoud A M ; Mohamad, Abu Bakar ; Kadhum, Abdul Amir H. ; Ahmad Ludin, Norasikin. / Effect of solvents on extraction and adsorption of natural dyes extracted from cordyline fruticosa and hylocereus polyrhizus. In: Asian Journal of Chemistry. 2014 ; Vol. 26, No. 18. pp. 6285-6288.
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