Pt Nanoparticles Supported on TiO2 Colloidal Spheres with Nanoporous Surface: Preparation and Used as an Enhancing Material for Biosensing Application

摘要

During the past decade, the research on the synthesis of nanosized porous TiO2 materials and their application in catalytic industry and photo-cell has been rather intense. Because of the important optical and electronic properties, it is useful for catalyst support, sensors, and so on [1,2]. On the other hand, metal nanoparticles (MNPs, e.g., gold, silver, platinum and palladium) have received a great deal of attention due to their unique physical and chemical properties as well as their enormous potential applications such as catalysts, nanoelectronic devices, sensors and surface-enhanced Raman scattering (SERS). Thus, functionalizing nanoporous TiO2 supports with MNPs combining the properties of two functional nanomaterials to achieve a wider range of applications will probably play an important role in the development of nanoscience and nanotechnology [3].