Effect of Surface Modification on SILAR Deposited CdS Quantum Dot Sensitized Hydrothermally Synthesised Titania Nanostructure

摘要： In the present work titaniana noflakes-nanorods were prepared on a flexible titanium metal foil by modified hydrothermal method. The titania nanoflakes-nanorods were further sensitized with CdS quantum dots through SILAR deposition. The surface charge of the titania surfaces were tuned using triethanolamine (TEA) to obtain maximum loading of CdS particles on the surface. The samples were characterized by XRD, FE-SEM and EDX analysis, which confirms the enhanced deposition of CdS quantum dots on the titania surface by TEA modification. The visible light photocatalytic studies were done by methylene blue degradation study. The modification in the SILAR cycle using TEA improves the photocatlytic performance around 4 times than those without TEA. The OH.radical formed in the photocatalytic reaction followed by photoluminescence study.