Facile synthesis of Cu@TiO₂ core shell nanowires for efficient photocatalysis
- Authors
- Babu, Bathula; Mallikarjuna, K.; Reddy, Ch. Venkata; Park, Jinsub
- Issue Date
- Aug-2016
- Publisher
- ELSEVIER SCIENCE BV
- Keywords
- Cu@TiO2; Metal-semiconductor; Core shell; Nanowires; X-ray techniques photocatalysis
- Citation
- MATERIALS LETTERS, v.176, pp.265 - 269
- Indexed
- SCIE
SCOPUS
- Journal Title
- MATERIALS LETTERS
- Volume
- 176
- Start Page
- 265
- End Page
- 269
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/22270
- DOI
- 10.1016/j.matlet.2016.04.146
- ISSN
- 0167-577X
- Abstract
- Metallic copper is a dependable co-catalyst for improving photoactivity of TiO2 photocatalysis. Cu@TiO2 core shell nanowires (NWs) were prepared by wet chemical synthesis and characterized. The microscopy images clearly show core shell morphology in nano regime. X-ray diffraction studies reveal the metallic copper and anatase TiO2 crystallinity. The optical absorption spectra exhibit ultraviolet and visible light harvesting properties. X-ray photoelectron spectroscopy confirms the presence of oxidation states of metallic copper and titanium. The photocatalytic efficiency was investigated by degrading the methyl orange (MO) and 3 wt% Cu@TiO2 core shell NWs shows highest degradation rate (k=0.02905 min (1)) with superior photocatalytic activity. This material could be surely meet the necessities to harvest solar energy for many energy-related applications.
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