Coconut coir dust extract: A novel eco-friendly corrosion inhibitor for Al in HCl solutions

S. A. Umoren, U. M. Eduok, A. U. Israel, I. B. Obot, M. M. Solomon

Research output: Journal PublicationArticlepeer-review

49 Citations (Scopus)

Abstract

Corrosion inhibition of aluminium in 1 M HCl by coconut coir dust extract (CCDE) was studied using weight loss and hydrogen evolution techniques at 30 and 60°C. It was found that the studied extract exhibits a very good performance as inhibitor for aluminium corrosion in 1 M HCl. Results show that the inhibition efficiency increases with increasing temperature and concentration of the extract. Inhibitive effect was afforded by adsorption of the extracts' components which was found to accord with Langmuir adsorption isotherm. Inhibition mechanism is deduced from the temperature dependence of the inhibition efficiency and was further corroborated by the values of activation parameters obtained from the experimental data.

Original languageEnglish
Pages (from-to)303-313
Number of pages11
JournalGreen Chemistry Letters and Reviews
Volume5
Issue number3
DOIs
Publication statusPublished - Sept 2012
Externally publishedYes

Keywords

  • acid
  • aluminium
  • coconut coir dust
  • corrosion inhibition

ASJC Scopus subject areas

  • General Chemistry
  • Environmental Chemistry

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