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 Se2- 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.

In vitro/in vivo study of novel anti-cancer, biodegradable cross-linked tannic acid for fabrication of 5-fluorouracil-targeting drug delivery nano-device based on a molecular imprinted polymer

“…14,15 Furthermore, the major advantage of MIPs is their antibody-like selectivity. Valuable properties of MIPs include: excellent reusability, 16 physical robustness, resistance to elevated pressure 17 and temperature, 18 inertness to organic solvents, acids and bases, 19 relative low cost 20 and ease of preparation. 21 The combination of magnetic nanoparticles and molecular imprinted polymers not only offers the possibility of a simple and complete one step separation by applying external magnetic eld but also provides selectivity for targeted molecules.…”