期刊
CANADIAN JOURNAL OF CHEMISTRY
卷 91, 期 11, 页码 1112-1116出版社
CANADIAN SCIENCE PUBLISHING
DOI: 10.1139/cjc-2013-0234
关键词
multifunction; TiO2 thin film; photocatalytic degradation; recyclable; SERS
资金
- National Natural Science Foundation of China [51302113, 51102117]
- China Postdoctoral Science Foundation [2012M510172]
- Jiangsu Postdoctoral Research Foundation [1102009C]
- Key Laboratory of Soft Chemistry and Functional Materials (Nanjing University of Science and Technology), Ministry of Education [2012KSFM02]
A simple strategy for synthesizing gold-loaded TiO2 thin film (Au/TiO2) for use as multifunctional photocatalyst and recyclable surface-enhanced Raman scattering (SERS) substrate is introduced. Macroporous TiO2 thin film is prepared through the dip-coating method and made the SERS activity by deposition of gold nanoparticles on its surface. Owing to the high photocatalytic activity of TiO2, the substrate can degrade adsorbates into small inorganic molecules under UV irradiation. In this manner, the substrate is able to self-clean and be reused for a new SERS detection cycle. The photodegradation and SERS experimental results show that Au/TiO2 is a good candidate for both photocatalyst and SERS substrate and exhibits high recyclability in the detection of organic pollutants.
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