Preparation and Photoelectrochemical Properties of TiO₂ Nanotube Arrays Modified with Nano-Scaled CdSe

Abstract:

Highly ordered TiO₂ nanotube arrays (TNTAs) with smooth walls and uniform diameter were prepared by electrochemical anodization. And then solution deposition process was adopted for the modification of the TNTAs with nanoscaled CdSe. The materials obtained were characterized by field emission scanning electron microscopy, UVvisible spectroscopic and photoelectrochemical techniques. The results revealed that the morphologies and growth mechanism for CdSe/TNTAs composites varied with the reaction time in Se^2- solutions (c=1.2 mol/L) when nanotubes were firstly imported with Cd²⁺ ions. Optical absorption behavior of the CdSe/TNTAs composites increased with more CdSe nanoparticles. And the photo-response of the obtained nanomaterials was first strengthened and then declined with the sustained increase of the deposited CdSe.

• Periodical: Applied Mechanics and Materials (Volume 320)
• Pages: 138-142
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.320.138
• Online since: May 2013
• Authors: Jia Qin Liu, Yan Wang, Guang Qing Xu, Hong Mei Zheng, Rong Jun Pan, Yu Cheng Wu
• Keywords: CdSe, Solution Deposition, TiO₂ Nanotube Array (TNAs)

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