DONG Liya, JI Tianhao, HAN Peng, et al. Preparation and SERS properties of Ag-deposited TiO2 nanobelts[J]. CIESC Journal, 2012, (2): 640-646.DOI: 10.3969/j.issn.0438-1157.2012.02.043.
A series of Ag-deposited anatase TiO2 nanobelts with different Ag content were prepared using ultraviolet-light reduction or/and seeding growth proceeding. The structure
morphology
Ag-deposition and SERS properties of the products were measured by various techniques. The measurement results show that the Ag nanoparticles reduced by ultraviolet-light
mainly in a diameter range of 10-50 nm
were deposited completely on the surface of TiO2 nanobelts
and the Ag content slowly enhances with the increase of reduction times. Based on the product
the nanocomposite with much more Ag content and coverage above 80 % was further obtained through seeding growth of Ag nanoparticles. The products remarkably exhibit surface-enhanced Raman scattering (SERS) activities using pyridine as a probe molecule