Co3O4 doped over SBA 15

Excellent adsorbent materials for the removal of methyleneblue dye pollutant

P. V. Suraja, Zahira Yaakob, N. N. Binitha, S. Triwahyono, P. P. Silija

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

Nanosized cobalt oxide particles are incorporated into SBA 15 mesoporous silica materials and are effectively used for the first time as adsorbent materials for aquatic dye pollutant removal. Cobalt is found to exist in its Co3O4 spinel structure as evident from FTIR and X-ray diffraction studies. The best weight ratio of metal loading to show excellent adsorption of methyleneblue is found to be 10 wt% Co over the support. There, Co3O4 spinel nanoparticles lie inside the pores of mesoporous silica. Further increase in the percentage of metal loading decreases the adsorption capacity which may be due to the agglomeration of nanoparticles over the silica support as evident from TEM photographs. Cobalt-doped systems of the present study, having good adsorption capacity of methyleneblue, are prepared via impregnation of cobalt nitrate over SBA 15 in aqueous medium. Here, we introduce a new SBA 15-based system for the fast removal of aquatic dye pollutants which is highly economical for industrial applications.

Original languageEnglish
Pages (from-to)967-975
Number of pages9
JournalClean Technologies and Environmental Policy
Volume15
Issue number6
DOIs
Publication statusPublished - Dec 2013

Fingerprint

cobalt
Silicon Dioxide
Adsorbents
Cobalt
dye
Coloring Agents
Dyes
Adsorption
pollutant
silica
Silica
Metals
adsorption
spinel
Nanoparticles
Impregnation
Industrial applications
pollutant removal
metal
Agglomeration

Keywords

  • Adsorption
  • Aquatic pollution
  • Cobalt oxide spinel
  • Dye removal
  • SBA 15
  • Waste water treatment

ASJC Scopus subject areas

  • Environmental Chemistry
  • Environmental Engineering
  • Management, Monitoring, Policy and Law

Cite this

Co3O4 doped over SBA 15 : Excellent adsorbent materials for the removal of methyleneblue dye pollutant. / Suraja, P. V.; Yaakob, Zahira; Binitha, N. N.; Triwahyono, S.; Silija, P. P.

In: Clean Technologies and Environmental Policy, Vol. 15, No. 6, 12.2013, p. 967-975.

Research output: Contribution to journalArticle

Suraja, P. V. ; Yaakob, Zahira ; Binitha, N. N. ; Triwahyono, S. ; Silija, P. P. / Co3O4 doped over SBA 15 : Excellent adsorbent materials for the removal of methyleneblue dye pollutant. In: Clean Technologies and Environmental Policy. 2013 ; Vol. 15, No. 6. pp. 967-975.
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