Synthesis of dual type Fe species supported mesostructured silica nanoparticles: Synergistical effects in photocatalytic activity

R. Jusoh, A. A. Jalil, S. Triwahyono, Kamarudin Nur Hidayatul Nazirah

Research output: Contribution to journalArticle

20 Citations (Scopus)

Abstract

Dual type Fe species (isomorphously substituted Fe species and a colloidal α-FeOOH (IS-FeOOH)) supported on mesostructured silica nanoparticles (IS-FeOOH/MSN) were prepared by a simple electrochemical method followed by impregnation. Characterization was conducted using X-ray diffraction, transmission electron microscopy, surface area analysis, Fourier-transform infrared spectroscopy, nuclear magnetic resonance, electron spin resonance, and X-ray photoelectron spectroscopy. The results suggested that silica removal occurred in the MSN framework to isomorphously substitute Fe cations while retaining the colloidal structure of IS-FeOOH. The catalytic activity of IS-FeOOH/MSN was tested on photo-Fenton-like degradation of 2-chlorophenol under fluorescent light irradiation. The performance of the catalyst was in the following order: 10 wt% IS-FeOOH/MSN > 15 wt% IS-FeOOH/MSN > 5 wt% IS-FeOOH/MSN > MSN, with removal percentages of 92.2, 79.3, 73.1, and 14.2%, respectively. The results suggest that a synergistic effect between the dual type of Fe species (Si-O-Fe and IS-FeOOH colloid) and MSN played important roles in enhancing the degradation. The results provide strong evidence to support the potential use of IS-FeOOH/MSN as a photo-Fenton-like nanocatalyst for organic pollutants treatment.

Original languageEnglish
Pages (from-to)9727-9736
Number of pages10
JournalRSC Advances
Volume5
Issue number13
DOIs
Publication statusPublished - 2015
Externally publishedYes

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Silicon Dioxide
Silica
Nanoparticles
Degradation
Organic pollutants
Colloids
Impregnation
Fourier transform infrared spectroscopy
Paramagnetic resonance
Cations
Catalyst activity
X ray photoelectron spectroscopy
Positive ions
Nuclear magnetic resonance
Irradiation
Transmission electron microscopy
X ray diffraction
Catalysts

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Chemistry(all)

Cite this

Synthesis of dual type Fe species supported mesostructured silica nanoparticles : Synergistical effects in photocatalytic activity. / Jusoh, R.; Jalil, A. A.; Triwahyono, S.; Nur Hidayatul Nazirah, Kamarudin.

In: RSC Advances, Vol. 5, No. 13, 2015, p. 9727-9736.

Research output: Contribution to journalArticle

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