Photo-Catalytic Activity of Ag-N Co-Doped ZnO/CuO Nano-Composite

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 photo-catalyst showed higher photo-catalytic activity than Ag- or N-doped and undoped composite photo-catalysts. 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.

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Product details

• Authors: Jema Mohammed, Jemal Mohammed, Abi Tadesse, Om Prakas Yadav, Om Prakash Yadav
• Publisher: LAP Lambert Academic Publishing
• Languages: English, German
• Product format: Paperback / Softback
• Released: 01.01.2016
• EAN: 9783659824296
• ISBN: 978-3-659-82429-6
• No. of pages: 60
• Subjects: Natural sciences, medicine, IT, technology > Chemistry; Non-fiction book > Nature, technology > Natural science