Synthesis and Characterization of TiO2 1% SiO2 of Crystal and its Bacterial Applications

Abstract

Three-dimensional (3D) TiO₂ Anatase and Rutile structures have attracted much attention due to their optical properties. However, the large band gap of (3.2 eV) results in the fact that anatase TiO₂ can act as photo catalyst and be excited by UV light, which only accounts for 3–5% of the solar energy. On considering that nobel metallatic nanomaterials can harvest visible light, in this paper, TiO₂ and SiO₂ nanocrystals with rod like morphology was prepared and used as photodevices, aiming to explore highly efficient visible-light-responsive photocatalyst. It was found that the visible photo reactivity of Anatase and Rutile TiO₂ was greatly enhanced after modified with SiO₂ dopants, and TiO₂-rods loaded with 1% SiO₂ exhibit the highest visible photocatalytic activity towards different dyes degradation. The SiO₂ doped TiO₂ was prepared by hydrothermal method, the effect of growth has been studied. Anatase phase present in both samples was confirmed by XRD analysis. The UV-DRS study showed that the SiO₂-doped sample shows a slight red shift. The morphological study showed that the sample has more cracks than one at low temperature. The EDAX analysis confirmed the presence of SiO₂ in the sample. Surface composition was determined by EDAX analysis.

Keywords: Anatase, hydrothermal technique, refractory materials, rutile, TiO₂-SiO₂

Cite this Article

K. Gayathiridevi, G. Pasupathi. Synthesis and Characterization of TiO2 1% SiO2 of Crystal and its Bacterial Applications. Research & Reviews: A Journal of Toxicology. 2020; 10(1): 47–57p.