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

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

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

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 UVVis 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.

Original language	English
Title of host publication	PHOTOPTICS 2017 - Proceedings of the 5th International Conference on Photonics, Optics and Laser Technology
Editors	David Andrews, Paulo A. Ribeiro, Maria Raposo
Publisher	SciTePress - Science and Technology Publications
Pages	334-340
Number of pages	7
Volume	2017-January
ISBN (Electronic)	9789897582233
Publication status	Published - 1 Jan 2017
Event	5th International Conference on Photonics, Optics and Laser Technology, PHOTOPTICS 2017 - Porto, Portugal Duration: 27 Feb 2017 → 1 Mar 2017

Conference

Conference	5th International Conference on Photonics, Optics and Laser Technology, PHOTOPTICS 2017
Country/Territory	Portugal
City	Porto
Period	27/02/17 → 1/03/17

Keywords

Bilayered Films
Decolorization
Photocatalysis
Reactive Sputtering
Rhodamine 6G

Cite this

Silva, L. C., Barrocas, B., Jorge, M. E. M., & Sério, S. (2017). Photocatalytic degradation of rhodamine 6G using TiO₂/WO₃ bilayered films produced by reactive sputtering. In D. Andrews, P. A. Ribeiro, & M. Raposo (Eds.), PHOTOPTICS 2017 - Proceedings of the 5th International Conference on Photonics, Optics and Laser Technology (Vol. 2017-January, pp. 334-340). SciTePress - Science and Technology Publications.

Silva, L. C. ; Barrocas, B. ; Jorge, M. E.Melo et al. / Photocatalytic degradation of rhodamine 6G using TiO₂/WO₃ bilayered films produced by reactive sputtering. PHOTOPTICS 2017 - Proceedings of the 5th International Conference on Photonics, Optics and Laser Technology. editor / David Andrews ; Paulo A. Ribeiro ; Maria Raposo. Vol. 2017-January SciTePress - Science and Technology Publications, 2017. pp. 334-340

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title = "Photocatalytic degradation of rhodamine 6G using TiO2/WO3 bilayered films produced by reactive sputtering",

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 UVVis 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.",

keywords = "Bilayered Films, Decolorization, Photocatalysis, Reactive Sputtering, Rhodamine 6G",

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Silva, LC, Barrocas, B, Jorge, MEM & Sério, S 2017, Photocatalytic degradation of rhodamine 6G using TiO₂/WO₃ bilayered films produced by reactive sputtering. in D Andrews, PA Ribeiro & M Raposo (eds), PHOTOPTICS 2017 - Proceedings of the 5th International Conference on Photonics, Optics and Laser Technology. vol. 2017-January, SciTePress - Science and Technology Publications, pp. 334-340, 5th International Conference on Photonics, Optics and Laser Technology, PHOTOPTICS 2017, Porto, Portugal, 27/02/17.

Photocatalytic degradation of rhodamine 6G using TiO₂/WO₃ bilayered films produced by reactive sputtering. / Silva, L. C.; Barrocas, B.; Jorge, M. E.Melo et al.
PHOTOPTICS 2017 - Proceedings of the 5th International Conference on Photonics, Optics and Laser Technology. ed. / David Andrews; Paulo A. Ribeiro; Maria Raposo. Vol. 2017-January SciTePress - Science and Technology Publications, 2017. p. 334-340.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

TY - GEN

T1 - Photocatalytic degradation of rhodamine 6G using TiO2/WO3 bilayered films produced by reactive sputtering

AU - Silva, L. C.

AU - Barrocas, B.

AU - Jorge, M. E.Melo

AU - Sério, S.

PY - 2017/1/1

Y1 - 2017/1/1

N2 - 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 UVVis 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.

AB - 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 UVVis 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.

KW - Bilayered Films

KW - Decolorization

KW - Photocatalysis

KW - Reactive Sputtering

KW - Rhodamine 6G

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AN - SCOPUS:85049129714

VL - 2017-January

SP - 334

EP - 340

BT - PHOTOPTICS 2017 - Proceedings of the 5th International Conference on Photonics, Optics and Laser Technology

A2 - Andrews, David

A2 - Ribeiro, Paulo A.

A2 - Raposo, Maria

PB - SciTePress - Science and Technology Publications

T2 - 5th International Conference on Photonics, Optics and Laser Technology, PHOTOPTICS 2017

Y2 - 27 February 2017 through 1 March 2017

ER -

Silva LC, Barrocas B, Jorge MEM, Sério S. Photocatalytic degradation of rhodamine 6G using TiO₂/WO₃ bilayered films produced by reactive sputtering. In Andrews D, Ribeiro PA, Raposo M, editors, PHOTOPTICS 2017 - Proceedings of the 5th International Conference on Photonics, Optics and Laser Technology. Vol. 2017-January. SciTePress - Science and Technology Publications. 2017. p. 334-340

Photocatalytic degradation of rhodamine 6G using TiO₂/WO₃ bilayered films produced by reactive sputtering

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