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Structural and wettability investigation of titanium dioxide coating: influence of dopant concentration (Si and Sr)

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Abstract

In this study, different samples of Si and Sr co-doped TiO2 thin films (5 mol% Si and 5-10-15-20 mol% Sr) were prepared via simple sol–gel synthesis method by using strontium acetate as strontium precursor, tetraethoxysilane as silicon precursor, and titanium (IV) isopropoxide (TTIP) as titanium precursor. The effects of co-doping process on the structural, optical, and wettability properties of thin films were studied by X-ray diffraction (XRD), Scanning electron microscope (SEM) and contact angle measurement. XRD results showed that, the anatase phase formation was promoted by Si+4 and Sr+2 co-doped TiO2 samples at higher percentage of Sr.Accordingly, the titania thin films showed various water contact angles, the water contact angles first decreased from 55.1° to 8.1° then increased to 40.7° by changing the content of Sr dopant from 5 to15 mol% and then to 20% mol.

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Authors and Affiliations

  1. Faculty of Material Engineering, Sahand University of Technology, Tabriz, Iran

    Mahdi Mozammel, Ebrahim Feyzi Tanour Aghaj, Nasrollah Najibi Ilkhechi & Amin Ranjbar Aghjehkohal

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  1. Mahdi Mozammel
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  2. Ebrahim Feyzi Tanour Aghaj
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  3. Nasrollah Najibi Ilkhechi
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  4. Amin Ranjbar Aghjehkohal
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Correspondence to Mahdi Mozammel.

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Mozammel, M., Aghaj, E.F.T., Ilkhechi, N.N. et al. Structural and wettability investigation of titanium dioxide coating: influence of dopant concentration (Si and Sr). J Mater Sci: Mater Electron 28, 12467–12474 (2017). https://doi.org/10.1007/s10854-017-7068-2

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  • DOI: https://doi.org/10.1007/s10854-017-7068-2

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