Photocatalytic Degradation of Rhodamine 6G using TiO2/WO3 Bilayered Films Produced by Reactive Sputtering

L. C. Silva, B. Barrocas, M. E. Melo Jorge, S. Sério

2018

Abstract

TiO2/WO3 and WO3/TiO2 bilayered films were deposited onto glass substrates by DC reactive magnetron sputtering and their photocatalytic activity was evaluated on the decolorization of Rhodamine 6G (Rh6G) aqueous solutions. The structures, morphologies and optical properties of TiO2 and WO3 layers and also of the bilayered films were studied by X-ray diffraction, field emission scanning electron microscopy and UV-Vis spectroscopy. It was found that the bilayered films exhibit good adherence to the substrates and high mechanic stability. The structural characterization revealed that in both nanocomposites independently of the above layer, the main phase observed in the X-ray patterns corresponds to WO3 and the optical properties are similar to the WO3 layer. The photocatalytic efficiency of the nanocrystalline bilayered films was further compared with TiO2 and WO3 films also produced by sputtering and the results show that the higher photocatalytic activity was achieved by the bilayered film with WO3 as the upper layer.

Paper Citation

in Harvard Style

Silva L., Barrocas B., Melo Jorge M. and Sério S. (2018). Photocatalytic Degradation of Rhodamine 6G using TiO2/WO3 Bilayered Films Produced by Reactive Sputtering.In Proceedings of the 6th International Conference on Photonics, Optics and Laser Technology - Volume 1: AOMatSens, ISBN 978-989-758-286-8, pages 334-340. DOI: 10.5220/0006751203340340

in Bibtex Style

@conference{aomatsens18,
author={L. C. Silva and B. Barrocas and M. E. Melo Jorge and S. Sério},
title={Photocatalytic Degradation of Rhodamine 6G using TiO2/WO3 Bilayered Films Produced by Reactive Sputtering},
booktitle={Proceedings of the 6th International Conference on Photonics, Optics and Laser Technology - Volume 1: AOMatSens,},
year={2018},
pages={334-340},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0006751203340340},
isbn={978-989-758-286-8},
}

in EndNote Style

TY - CONF

JO - Proceedings of the 6th International Conference on Photonics, Optics and Laser Technology - Volume 1: AOMatSens,
TI - Photocatalytic Degradation of Rhodamine 6G using TiO2/WO3 Bilayered Films Produced by Reactive Sputtering
SN - 978-989-758-286-8
AU - Silva L.
AU - Barrocas B.
AU - Melo Jorge M.
AU - Sério S.
PY - 2018
SP - 334
EP - 340
DO - 10.5220/0006751203340340