Preparation and photocatalytic activity of apatite-precipitated TiO2

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2011

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Metallurgical and Materials Engineering
(2004)
The main fields of operation for Metallurgical and Materials Engineering are production of engineering materials, defining and improving their features, as well as developing new materials to meet the expectations at every aspect of life and the users from these aspects. Founded in 2004 and graduated its 10th-semester alumni in 2018, our Department also obtained MÜDEK accreditation in the latter year. Offering the opportunity to hold an internationally valid diploma through the accreditation in question, our Department has highly qualified and experienced Academic Staff. Many of the courses offered at our Department are supported with various practice sessions, and internship studies in summer. This way, we help our students become better-equipped engineers for their future professional lives. With the Cooperative Education curriculum that entered into effect in 2019, students may volunteer to work at contracted companies for a period of six months with no extensions to their period of study.
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English Translation and Interpretation
(2001)
Since 2001, our Department has offered education at an extent that matches the similar Departments of European Universities, with a program that involves theoretical and practical courses within the frameworks of translation and interpretation. The goals that we aim our students to reach involve the utilization of knowledge, behaviors and equipment, interpersonal operation in interpretation, the management of the process of production, expertise in language skills with respect to fields and general culture, and access to information. Our students have no difficulty in being hired upon graduation, having gained an awareness regarding the expectations and the conditions of the professional life through our strong cooperation with the national and the international sector. With French and Russian courses offered for 4 years, our students steal the spotlight in the market, having obtained a C-Language Certificate. Our graduates are employed as freelance interpreters, institution interpreters, regulators as multi-layered language experts, terminology experts, subtitle experts and web localization experts.

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Apatite was precipitated on the surface of titanium dioxide (TiO2) powder by a biomimetic process. The precipitation was accomplished by immersing TiO2 powder in simulated body fluid (SBF) for 1, 3, 6, 12 and 24 h. Photocatalytic activity of the apatite-precipitated TiO2 (HAp-TiO2) powders was investigated to assess the decomposition of methylene blue (MB) in aqueous solution and the removal of acetaldehyde gas under UV irradiation. Hydroxyapatite precipitation enhanced the photocatalytic activity of the TiO2 powder. The time required for the complete degradation of MB decreased from 3.5 to 2 h with the immersion of TiO2 powders in SBF for 3 h. In terms of acetaldehyde gas decomposition, less than 1 h was sufficient to achieve complete removal for HAp-TiO2 powder but at least 2 h were required for the bare TiO2 powder. HAp-TiO2 powders could therefore be a promising candidate photocatalyst for environmental purification.

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Keywords

Apatite, Photocatalyst, Simulated body fluid, TiO<sub>2</sub>Powder

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Citation

5

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Q3

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Q3

Source

Journal of Ceramic Processing Research

Volume

12

Issue

2

Start Page

176

End Page

182

URI

https://hdl.handle.net/20.500.14411/9303

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Scopus