Two-solvent method synthesis of SnO{sub 2} nanoparticles embedded in SBA-15: Gas-sensing and photocatalytic properties study

Journal Article · Sat Feb 01 04:00:00 EST 2014 · Materials Research Bulletin

DOI:https://doi.org/10.1016/J.MATERRESBULL.2013.10.026· OSTI ID:22345234

Dai, Peng; Zhang, Lili; Li, Guang; Sun, Zhaoqi ^[1]; Liu, Xiansong ^[2]; Wu, Mingzai ^[1]

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1. Key Laboratory of Information Materials and Device, School of Physics and Materials Science, Anhui University, Hefei 230039 (China)
2. Engineering Technology Research Center of Magnetic Materials, Hefei 230039 (China)

Graphical abstract: Different loadings of SnO{sub 2} nanoparticles embedded in mesoporous silica (sample S1, S2 and S3) show higher response to H{sub 2} at lower operating temperature than pure SnO{sub 2} nanoparticles. - Highlights: • Two-solvent method is firstly used to synthesize SnO{sub 2} nanoparticles embedded in mesoporous silica (SBA-15). • The SnO{sub 2}/SBA-15 nanocomposites show higher response to H{sub 2} at lower operating temperature than pure SnO{sub 2} nanoparticles. • The SnO{sub 2}/SBA-15 nanocomposites have higher photodegradation ability toward methylene blue than pure SnO{sub 2} nanoparticles. - Abstract: Different loadings of SnO{sub 2} nanoparticles embedded in mesoporous silica (SBA-15) were prepared via a two-solvent method with the ordered hexagonal mesoporous structure of SBA-15 kept. X-ray diffraction, transmission electron microscope, X-ray photoelectron spectroscopy and N{sub 2} adsorption porosimetry were employed to characterize the nanocomposites. Compared with pure SnO{sub 2} nanoparticles, the SnO{sub 2}/SBA-15 nanocomposites show higher response to H{sub 2} at lower operating temperature. The photocatalytic activity of as-prepared SnO{sub 2}/SBA-15 for degradation of methylene blue was investigated under UV light irradiation and the results show that the SnO{sub 2}/SBA-15 nanocomposites have higher photodegradation ability toward methylene blue than pure SnO{sub 2} nanoparticles.

• OSTI ID: 22345234
• Journal Information: Materials Research Bulletin, Journal Name: Materials Research Bulletin Vol. 50; ISSN MRBUAC; ISSN 0025-5408
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ADSORPTION
COMPARATIVE EVALUATIONS
HYDROGEN
IRRADIATION
METHYLENE BLUE
NANOCOMPOSITES
NANOPARTICLES
NANOSTRUCTURES
PHOTOCATALYSIS
SILICA
SOLVENTS
SYNTHESIS
TIN OXIDES
TRANSMISSION ELECTRON MICROSCOPY
X-RAY DIFFRACTION
X-RAY PHOTOELECTRON SPECTROSCOPY