Kappaphycus alvarezii waste biomass

A potential biosorbent for chromium ions removal

Oon Lee Kang, Nazaruddin Ramli, Mamot Said, Musa Ahmad, Suhaimi Md Yasir, Arbakariya Ariff

Research output: Contribution to journalArticle

20 Citations (Scopus)

Abstract

The Cr(III) sorption experiments onto Kappaphycus alvarezii waste biomass were conducted at different pH values (2-6) under the conditions of initial metal concentration of 10-50 mg/L and the chemical compositions of Cr-Cu and Cr-Cd. The Cr(III) sorption capacities were slightly dependent on pH, and the maximum sorption capacity was 0.86 mg/g at pH 3. The sorption capacities increased with increase in the initial metal concentration, whereas it was suppressed by the presence of Cu(II) and Cd(III) in the solution. The Cr(III) sorption equilibrium was evaluated using Langmuir, Freundlich and BET isotherms. The sorption mechanisms were characterised using scanning electron microscopy and Fourier transform infrared spectroscopy. The main mechanisms were ion exchange coupled with a complexation mechanism. Kappaphycus alvarezii waste biomass represents a potential for Cr(III) ion removal from aqueous solution.

Original languageEnglish
Pages (from-to)918-922
Number of pages5
JournalJournal of Environmental Sciences
Volume23
Issue number6
DOIs
Publication statusPublished - Jun 2011

Fingerprint

Chromium
chromium
Sorption
Biomass
sorption
Ions
ion
biomass
Metals
metal
Complexation
FTIR spectroscopy
complexation
Fourier transform infrared spectroscopy
Isotherms
removal
ion exchange
Ion exchange
isotherm
aqueous solution

Keywords

  • Biosorption
  • Chromium
  • Kappaphycus alvarezii

ASJC Scopus subject areas

  • Environmental Engineering
  • Environmental Science(all)
  • Environmental Chemistry

Cite this

Kappaphycus alvarezii waste biomass : A potential biosorbent for chromium ions removal. / Kang, Oon Lee; Ramli, Nazaruddin; Said, Mamot; Ahmad, Musa; Yasir, Suhaimi Md; Ariff, Arbakariya.

In: Journal of Environmental Sciences, Vol. 23, No. 6, 06.2011, p. 918-922.

Research output: Contribution to journalArticle

Kang, Oon Lee ; Ramli, Nazaruddin ; Said, Mamot ; Ahmad, Musa ; Yasir, Suhaimi Md ; Ariff, Arbakariya. / Kappaphycus alvarezii waste biomass : A potential biosorbent for chromium ions removal. In: Journal of Environmental Sciences. 2011 ; Vol. 23, No. 6. pp. 918-922.
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