Titania-Ceria surfactant assisted sol-gel synthesis and characterization

Abstract

the nanoparticles of titanium dioxide are important in a wide range of applications such as catalysis, environmental remediation and solar energy conversion. While cerium oxide is rareearth oxide material used in the fields of photoluminescence, photosensitive material to uv radiation. Furthermore, research on the synthesis of nanoparticles of titanium dioxide has given rise to different methods such as sol-gel, in solid states, hydrothermal processes, among others. the process of solid state synthesis is most often used for the technical production of ceramic materials, while the sol-gel has gained much popularity in recent decades. Between these methods, microemulsion of reverse micelles technique, is one of the most versatile allowing control of particle properties such as size distribution, morphology and surface area. in this work, titania-ceria nanoparticles in anatase phase were synthesized by sol-gel method assisted by microemulsion reverse micelle using titanium butoxide and cerium nitrate hexahydrate as the precursors. the sample was thermally treated at 600 °c at a rate of 3 °c min-1. the residence time of the sample at this temperature was 2 hrs. tem and XrD analysis were used to characterize the samples obtained. According to the results, the obtained nanoparticles present spherical morphology and have a size distribution of 5 nm for ceo 2 , 9.5 for tio 2 and 14, 17 and 20 nm for the doped tio 2 with 5, 10 and 15% ceo 2 , respectively. the results indicate that the ceo 2 was incorporated into the network of titania.

<p>The Advances of Ceria Nanoparticles for Biomedical Applications in Orthopaedics</p>

“…Torres-Romero et al synthesized Titania-Ceria composite at different sizes through titanium butoxide and cerium nitrate hexahydrate as the precursors. 75 Three years later, Torres-Romero et al 76 indicated that the Titania-Ceria composite presented excellent biocompatibility and delivery efficiency in the drug delivery systems (DDSs) with daunorubicin (DNR) against cancer.…”

Synthesis and Characterization of TiO2-CaO and TiO2-CaO-Fe2O3 Photocatalyst for Removal of Catechol

“…The sol-gel method has several advantages (Tseng et al, 2010) such as (1) inexpensive and easy to be conducted, (2) lower temperature of preparation, (3) better purity from raw material, (4) better mixing for a system of multi-component, etc. The use of surfactants to assist the synthesis of catalysts via the sol-gel method has been widely carried out (Anderson & Binions, 2014;Galkina, Vinogradov, Agafonov, & Vinogradov, 2011;Phattepur et al, 2019;Torres-Romero, Cajero-Juárez, & Contreras-García, 2017), and the use of tween surfactant has been proven to increase photocatalyst activity and absorption of harmful organic substances (Anderson & Binions, 2014).…”