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ISSN Online: 2379-1748

ISBN Flash Drive: 978-1-56700-483-0

ISBN Online: 978-1-56700-482-3

4th Thermal and Fluids Engineering Conference
April, 14–17, 2019 , Las Vegas, NV, USA

CRYSTAL GROWTH CONTROL OF ANATASE AND RUTILE TIO2 NANOPARTICLES USING SOLUTION SYNTHESIS: A REVIEW

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DOI: 10.1615/TFEC2019.nma.027726

Аннотация

This paper will discuss the TiO2 nanoparticle production with different crystal phases, including Anatase and Rutile for dye-sensitized solar cell application. In particular, the solution-based production methods of these TiO2 nanoparticles will be reviewed. Several experimental investigations have conducted on the hydrothermal synthesis of Rutile TiO2 particles, using Titanium chloride as a Ti(IV) source. To obtain the Rutile TiO2 particles, the Ti (IV) hydrolysis in acidic conditions can be often controlled by the use of TiCl4 as a titanium source. A structure directing agent, such as citric acid, is often added in the reaction system to grow different size and shape particles. In case of Anatase nanoparticles, one of the major strategies is to use a fluoride compound as a starting material in hydrothermal reactions, such as Titanium tetrafluoride and sodium fluoride. This allows one to control exposed crystal facets of Anatase particles. As a result of the regulation of TiO2 crystal growth, two dimensional Anatase TiO2 nanosheets can be often synthesized. The purpose of this paper is to understand how to produce both Anatase and Rutile TiO2 crystals, using a solution-based synthesis at low temperature (without using conventional hydrothermal reactions). In addition, the importance of this paper lies in the applicability of low temperature synthesis i.e. creation of a photoanode material of dye-sensitized solar cell.