Photo-Catalytic Activity of Ag-N Co-Doped ZnO/CuO Nanocomposite for Degradation of Methyl Orange
| Autor: | Jemal Mohammed Yasin, O. P. Yadav, Abi M. Taddesse |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
Nanocomposite
Aqueous solution Materials science 010405 organic chemistry Band gap Inorganic chemistry Doping Substrate (chemistry) Surfaces and Interfaces 010402 general chemistry 01 natural sciences 0104 chemical sciences Surfaces Coatings and Films Metal chemistry.chemical_compound chemistry visual_art Materials Chemistry Electrochemistry Photocatalysis Methyl orange visual_art.visual_art_medium Nuclear chemistry |
| Zdroj: | Journal of Surface Science and Technology. 32:49 |
| ISSN: | 0976-9420 0970-1893 |
| DOI: | 10.18311/jsst/2016/6602 |
| Popis: | Nano-size Ag-N co-doped ZnO-CuO composites have been synthesized and tested for their photo-catalytic activity towards degradation of methyl orange in aqueous solution under visible as well as UV radiations. Crystal structure, surface functional groups, metallic composition and band structure of as-synthesized nano-material were investigated using XRD, FTIR, AAS and UV-Vis spectroscopic techniques, respectively. Ag-N co-doped ZnO-CuO photocatalyst showed higher photo-catalytic activity than Ag- or N-doped and undoped composite photocatalysts. The observed highest activity of Ag-N co-doped ZnO-CuO among the studied photo-catalysts, is attributed to the cumulative effects of lowering of band-gap energy and decrease of recombination rate of photo-generated electrons and holes owing to doped N and Ag, respectively. Effects of photo-catalyst load, solution pH and substrate initial concentration on the degradation of methyl orange have also been studied. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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