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Concurrent synthesis of SnO/SnO2 nanocomposites and their enhanced photocatalytic activity
- Source :
- Journal of Solid State Electrochemistry. 21:9-17
- Publication Year :
- 2016
- Publisher :
- Springer Science and Business Media LLC, 2016.
-
Abstract
- The SnO/SnO2 nanocomposites were synthesized using semisolvothermal reaction technique. These nanocomposites were prepared using different combination of solvents viz., ethanol, water, and ethylene glycol at 180 °C for 24 h. The synthesized nanocomposites were analyzed with various characterization techniques. Structural analysis indicates the formation of tetragonal phase of SnO2 for the sample prepared in ethanol, whereas for other solvent combinations, the mixture of SnO and SnO2 having tetragonal crystal structures were observed. The optical study shows enhanced absorbance in the visible region for all the prepared SnO/SnO2 nanocomposites. The observed band gap was found to be in the range of 3.0 to 3.25 eV. Microstructural determinations confirm the formation of nanostructures having spherical as well as rod-like morphology. The size of nanoparticles in ethanol-mediated solvent was found to be in the range of 5 to 7 nm. Thermogravimetric analysis indicate the weight gain around 1.3 wt% confirming the conversion of SnO to SnO2 material. The photocatalytic activity of synthesized nanocomposites was evaluated by following the aqueous methylene blue (MB) degradation. The sample prepared in ethylene glycol-mediated solvent showed highest photoactivity having apparent rate constant (Kapp) 0.62 × 10−2 min−1.
- Subjects :
- Thermogravimetric analysis
Aqueous solution
Nanocomposite
Materials science
Nanoparticle
02 engineering and technology
010402 general chemistry
021001 nanoscience & nanotechnology
Condensed Matter Physics
01 natural sciences
0104 chemical sciences
Solvent
Tetragonal crystal system
chemistry.chemical_compound
chemistry
Chemical engineering
Electrochemistry
Photocatalysis
Organic chemistry
General Materials Science
Electrical and Electronic Engineering
0210 nano-technology
Ethylene glycol
Subjects
Details
- ISSN :
- 14330768 and 14328488
- Volume :
- 21
- Database :
- OpenAIRE
- Journal :
- Journal of Solid State Electrochemistry
- Accession number :
- edsair.doi...........30dae7347b0d22dff2e6cde05bf24df7