Effect of Additives on Characterization and Photocatalytic Activity of T i o 𝟐 /ZnO Nanocomposite Prepared via Sol-Gel Process
| Autor: | Sanaz Raeis Farshid, Parviz Aberoomand Azar, Mohammad Hadi Givianrad, Saeed Abedini Khorrami, Shahram Moradi |
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| Jazyk: | angličtina |
| Rok vydání: | 2012 |
| Předmět: |
Materials science
Nanocomposite Article Subject Scanning electron microscope General Chemical Engineering technology industry and agriculture Infrared spectroscopy macromolecular substances chemistry.chemical_compound Chemical engineering chemistry PEG ratio Methyl orange Photocatalysis TP155-156 Ethylene glycol Nuclear chemistry Sol-gel |
| Zdroj: | International Journal of Chemical Engineering, Vol 2012 (2012) |
| ISSN: | 1687-806X |
| DOI: | 10.1155/2012/215373 |
| Popis: | TiO2/ZnO nanocomposites were prepared by the sol-gel method with and without addatives such as carboxy methyl cellulose (CMC), poly(ethylene glycol) (PEG), polyvinylpyrrolidon, (PVP), and hydroxylpropylcellulose (HPC). The characteristics of the prepared TiO2/ZnO nanocomposites were identified by IR spectra, X-ray diffraction (XRD), scanning electron microscopy (SEM), and energy dispersive X-ray spectroscopy (EDS) methods. The additives have a significant effect on the particle size distribution and photocatalytic activity of TiO2/ZnO nanocomposites. The photocatalytic activity of the synthesized nanocomposites was investigated for decolorization of methyl orange (MO) in water under UV-irradiation in a batch reactor and the results showed that the photocatalytic activity of the nanocomposites have been increased by CMC, PEG, PVP, and HPC, respectively. SEM has shown that the particle size distribution of TiO2/ZnO nanocomposite in the presence of HPC was better than the other samples. |
| Databáze: | OpenAIRE |
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