Preparation of Transparent ZIF-8/TiO2 Nanocomposite Thin Films for Photocatalytic Applications

Year 2023, Volume: 12 Issue: 3, 764 - 772, 28.09.2023

Onur İloğlu Hüsnü Arda Yurtsever

https://doi.org/10.17798/bitlisfen.1297654

Abstract

Transparent ZIF-8/TiO2 nanocomposite thin films were prepared by a two-stage dip-coating method. TiO2 was first deposited on glass substrates by sol-gel dip-coating. Heat treatment temperature, number of layers and doping metal type/level were optimized in the first step. In the next step, ZIF-8 was grown by solvent based crystallization method on TiO2 layers. Cu, Ce, Fe or Zn doped TiO2 thin films were prepared in order to increase the photocatalytic performance of ZIF-8/TiO2 nanocomposite. The highest photocatalytic methylene blue degradation activities were obtained with the ZIF-8/TiO2 nanocomposite thin films prepared by using 1% Cu or 1% Ce doped TiO2 thin films as the substrates. Both films exhibited 19% dye removal in 1 hour under 254 nm LED light irradiation whereas the dye removal efficiencies were 36% and 29%, respectively, in 1 hour under 365 nm LED light irradiation.

Keywords

Photocatalysis, ZIF-8, TiO2, Nanocomposite, Thin film

Supporting Institution

Adana Alparslan Türkeş Science and Technology University Scientific Research Coordination Unit, Turkey / The Scientific and Technological Research Council of Turkey (TUBITAK)

Project Number

20303001 / BİDEB 2210-C National Scholarship in Priority Fields in Science Program for MSc students

Thanks

This study was supported by Adana Alparslan Türkeş Science and Technology University Scientific Research Coordination Unit, Turkey. Project Number: 20303001. Onur İloğlu was supported by the TÜBİTAK-BİDEB 2210-C National Scholarship in Priority Fields in Science Program for MSc students.

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