Preparation Titanium Dioxide Combined Hydrophobic Polymer with Photocatalytic Self-Cleaning Properties

*Sayekti Wahyuningsih orcid scopus  -  Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Sebelas Maret, Indonesia
Rochmad E. Cahyono  -  Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Sebelas Maret, Indonesia
Fitri N. Aini  -  Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Sebelas Maret, Indonesia
Received: 20 Oct 2020; Revised: 9 Dec 2020; Accepted: 10 Dec 2020; Published: 28 Dec 2020; Available online: 22 Dec 2020.
Open Access Copyright (c) 2020 Bulletin of Chemical Reaction Engineering & Catalysis
License URL: http://creativecommons.org/licenses/by-sa/4.0

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Abstract

Titanium dioxide (TiO2) and hydrophobic of TiO2/PDMS (PDMS = polydimethylsiloxane) have been prepared as photocatalytic self-cleaning materials. Synthesis of TiO2 was carried out using the sol-gel method with titanium(IV) isopropoxide (TTIP) as a precursor and acetic acid as a solvent at a temperature of about 10–15 °C, while the synthesis of hydrophobic of TiO2/PDMS composites was carried out by a sonication method under ethanol solution. The results of XRD analysis of synthesized TiO2 showed that TiO2 was anatase phase. The glass-coated TiO2/PDMS were prepared by dip-coating under an ultrasonication bath. TiO2/PDMS composites at a ratio of TiO2/PDMS (1) on the glass plate showed hydrophobic properties, as evidenced by the contact angle of 104° before irradiation and the contact angle of 99.7° after irradiation. The synthesized titanium dioxide has irregular spherical morphology. The increase in PDMS content was correlated with an increase in the roughness of TiO2. PDMS not only acts as low surface energy but also binds TiO2. The hydrophobic behavior of PDMS creates TiO2/PDMS repel each other, gain irregular agglomeration structures. Beside having optimum contact angle, glass-coated TiO2/PDMS (1) is the best composition for degradation of methylene blue in 69.68% for 20 minutes irradiation. Copyright © 2020 BCREC Group. All rights reserved

 

Keywords: Self-cleaning; Photocatalytic; Sol-gel; TiO2/PDMS, methylene blue
Funding: Universitas Sebelas Maret under contract (PM-UNS) (Penelitian Mandatory 2019)

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Section: Original Research Articles
Language: EN
In 2020: BCREC Volume 15 Issue 3 Year 2020 (SCOPUS and Web of Science Indexed,December 2020)
Statistics: 463 307
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