Facile synthesis of SnO 2 aerogel/reduced graphene oxide nanocomposites via in situ annealing for the photocatalytic degradation of methyl orange

Taehee Kim, Vinayak G. Parale, Hae Noo Ree Jung, Younghun Kim, Zied Driss, Dorra Driss, Abdallah Bouabidi, Souhir Euchy, Hyung Ho Park

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

SnO 2 aerogel/reduced graphene oxide (rGO) nanocomposites were synthesized using the sol–gel method. A homogeneous dispersion of graphene oxide (GO) flakes in a tin precursor solution was captured in a three-dimensional network SnO 2 aerogel matrix and successively underwent supercritical alcohol drying followed by the in situ thermal reduction of GO, resulting in SnO 2 aerogel/rGO nanocomposites. The chemical interaction between aerogel matrix and GO functional groups was confirmed by a peak shift in the Fourier transform infrared spectra and a change in the optical bandgap of the diffuse reflectance spectra. The role of rGO in 3D aerogel structure was studied in terms of photocatalytic activity with detailed mechanism of the enhancement such as electron transfer between the GO and SnO 2 . In addition, the photocatalytic activity of these nanocomposites in the methyl orange degradation varied depending on the amount of rGO loading in the SnO 2 aerogel matrix; an appropriate amount of rGO was required for the highest enhancement in the photocatalytic activity of the SnO 2 aerogel. The proposed nanocomposites could be a useful solution against water pollutants.

Original languageEnglish
Article number358
JournalNanomaterials
Volume9
Issue number3
DOIs
Publication statusPublished - 2019 Mar

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Aerogels
Graphite
Oxides
Graphene
Nanocomposites
Annealing
Degradation
Water Pollutants
methyl orange
Tin
Optical band gaps
Functional groups
Drying
Fourier transforms
Alcohols
Infrared radiation
Electrons

All Science Journal Classification (ASJC) codes

  • Chemical Engineering(all)
  • Materials Science(all)

Cite this

Kim, Taehee ; Parale, Vinayak G. ; Jung, Hae Noo Ree ; Kim, Younghun ; Driss, Zied ; Driss, Dorra ; Bouabidi, Abdallah ; Euchy, Souhir ; Park, Hyung Ho. / Facile synthesis of SnO 2 aerogel/reduced graphene oxide nanocomposites via in situ annealing for the photocatalytic degradation of methyl orange In: Nanomaterials. 2019 ; Vol. 9, No. 3.
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Facile synthesis of SnO 2 aerogel/reduced graphene oxide nanocomposites via in situ annealing for the photocatalytic degradation of methyl orange . / Kim, Taehee; Parale, Vinayak G.; Jung, Hae Noo Ree; Kim, Younghun; Driss, Zied; Driss, Dorra; Bouabidi, Abdallah; Euchy, Souhir; Park, Hyung Ho.

In: Nanomaterials, Vol. 9, No. 3, 358, 03.2019.

Research output: Contribution to journalArticle

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AU - Kim, Younghun

AU - Driss, Zied

AU - Driss, Dorra

AU - Bouabidi, Abdallah

AU - Euchy, Souhir

AU - Park, Hyung Ho

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N2 - SnO 2 aerogel/reduced graphene oxide (rGO) nanocomposites were synthesized using the sol–gel method. A homogeneous dispersion of graphene oxide (GO) flakes in a tin precursor solution was captured in a three-dimensional network SnO 2 aerogel matrix and successively underwent supercritical alcohol drying followed by the in situ thermal reduction of GO, resulting in SnO 2 aerogel/rGO nanocomposites. The chemical interaction between aerogel matrix and GO functional groups was confirmed by a peak shift in the Fourier transform infrared spectra and a change in the optical bandgap of the diffuse reflectance spectra. The role of rGO in 3D aerogel structure was studied in terms of photocatalytic activity with detailed mechanism of the enhancement such as electron transfer between the GO and SnO 2 . In addition, the photocatalytic activity of these nanocomposites in the methyl orange degradation varied depending on the amount of rGO loading in the SnO 2 aerogel matrix; an appropriate amount of rGO was required for the highest enhancement in the photocatalytic activity of the SnO 2 aerogel. The proposed nanocomposites could be a useful solution against water pollutants.

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