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| Content Provider | Royal Society of Chemistry (RSC) |
|---|---|
| Author | Ansari, Sajid Ali Khan, Mohammad Ehtisham Ansari, Omaish Cho, Moo Hwan Khan, Mohammad Mansoob Min, Bong-Ki |
| Copyright Year | 2015 |
| Abstract | This paper reports a novel one-pot biogenic synthesis of Au–SnO2 nanocomposite using electrochemically active biofilm. The synthesis, morphology and structure of the as-synthesized Au–SnO2 nanocomposite were in-depth studied and confirmed by UV-vis spectroscopy, photoluminescence spectroscopy, transmission electron microscopy, X-ray diffraction, and X-ray photoelectron spectroscopy. It was observed that the SnO2 surface was decorated homogeneously with Au nanoparticles. The photoelectrochemical behavior of the Au–SnO2 nanocomposite was examined by cyclic voltammetry, differential pulse voltammetry, electrochemical impedance spectroscopy, and linear sweep voltammetry in the dark and under visible light irradiation. Visible light-induced photoelectrochemical studies confirmed that the Au–SnO2 nanocomposite had enhanced activities compared to the P–SnO2 nanoparticles. The Au–SnO2 nanocomposite was also tested for the visible light-induced photocatalytic degradation of Congo red and methylene blue, and showed approximately 10 and 6-fold higher photocatalytic degradation activity, respectively, compared to P–SnO2. These results showed that the Au–SnO2 nanocomposite exhibits excellent and higher visible light-induced photoelectrochemical and photocatalytic activities than the P–SnO2 nanoparticles, and can be used for a wide range of applications. |
| Starting Page | 2758 |
| Ending Page | 2766 |
| Page Count | 9 |
| File Format | HTM / HTML PDF |
| ISSN | 11440546 |
| Volume Number | 39 |
| Issue Number | 4 |
| Journal | New Journal of Chemistry |
| DOI | 10.1039/c4nj02245a |
| Language | English |
| Publisher | Royal Society of Chemistry |
| Access Restriction | Open |
| Subject Keyword | Spectroscopy Biogenic substance Photoluminescence Photoelectrochemical process Photoemission spectroscopy Congo Methylene blue X-ray crystallography Cyclic voltammetry Linear sweep voltammetry Ultraviolet\u2013visible spectroscopy Transmission electron microscopy Congo red Biofilm Electrochemistry Nanocomposite X-ray photoelectron spectroscopy Differential pulse voltammetry Electrical impedance |
| Content Type | Text |
| Resource Type | Article |
| Subject | Chemistry Materials Chemistry Catalysis |
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