Article,

TiO2-Based Composite Nanotube Arrays Prepared via Layer-by-Layer Assembly

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Advanced Functional Materials, 15 (2): 196--202 (2005)
DOI: 10.1002/adfm.200305098

Abstract

Abstract A simple and versatile technique has been developed to prepare TiO2 and TiO2-based composite (TiO2–CdS and TiO2–Au) nanotube arrays. Scanning electron microscopy (SEM), transmission electron microscopy (TEM), energy-dispersive X-ray (EDX) analysis, X-ray diffraction (XRD), thermogravimetric analysis (TGA), UV-vis spectroscopy, and photoluminescence (PL) spectroscopy are used to characterize their morphology, structure, composition, and properties. The TiO2–CdS nanotubes contained many TiO2 and CdS quantum dots and exhibited a novel PL band in the blue-wavelength range. The reported strategy will be useful for fabricating nanoparticle–nanoparticle composite nanostructure arrays, which are suitable for applications in catalysis, chemical sensors, nanoelectrodes, and nanodevices.

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