Characterization of Co2+- and Fe3+-Codoped TiO2 Nanomaterials for Photocatalytic Degradation of Organic Pollutants under Visible Light Irradiation

In this study, TiO2 nanomaterials were prepared using a solvothermal method and codoped with Co2+ and Fe3+ ions for the photocatalytic degradation of organic pollutants under visible light. The physicochemical properties of the obtained materials were studied by powder X-ray diffraction, field emiss...

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Autores principales:	Nguyen Thi Tuyet Mai, Nguyen Kim Nga, Dang Thi Minh Hue, Ta Ngoc Dung, Huynh Dang Chinh, Tran Quang Huy
Formato:	article
Lenguaje:	EN
Publicado:	Hindawi - SAGE Publishing 2021
Materias:	Physical and theoretical chemistry QD450-801
Acceso en línea:	https://doaj.org/article/d9f4952dbdbc4a50938615bbc84e898d
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spelling	oai:doaj.org-article:d9f4952dbdbc4a50938615bbc84e898d2021-11-29T00:56:05ZCharacterization of Co2+- and Fe3+-Codoped TiO2 Nanomaterials for Photocatalytic Degradation of Organic Pollutants under Visible Light Irradiation2048-403810.1155/2021/9193052https://doaj.org/article/d9f4952dbdbc4a50938615bbc84e898d2021-01-01T00:00:00Zhttp://dx.doi.org/10.1155/2021/9193052https://doaj.org/toc/2048-4038In this study, TiO2 nanomaterials were prepared using a solvothermal method and codoped with Co2+ and Fe3+ ions for the photocatalytic degradation of organic pollutants under visible light. The physicochemical properties of the obtained materials were studied by powder X-ray diffraction, field emission electron scanning microscopy, energy-dispersive X-ray spectroscopy, and nitrogen adsorption isotherms. Optical absorption was characterized by UV-vis absorption spectroscopy. The photocatalytic activities of the prepared materials were evaluated through methylene blue (MB) degradation under visible light irradiation. Results showed the excellent performance of MB degradation investigated on TiO2 samples codoped with Co2+ and Fe3+ in comparison with undoped and Co2+-doped TiO2 samples. The codoped TiO2 samples degraded 85%–90% of MB after 120 min, whereas all the prepared TiO2 samples were composed of pure anatase phase and had a spherical-like shape and mean crystalline size ranging from 6.2 nm to 7.8 determined by Scherrer’s equation. The optical absorption of the TiO2 codoped with Co2+ and Fe3+ was significantly enhanced toward the visible light region. The pseudo-second-order kinetic model fits well for the degradation of MB on as-prepared TiO2 codoped with Co2+ and Fe3+.Nguyen Thi Tuyet MaiNguyen Kim NgaDang Thi Minh HueTa Ngoc DungHuynh Dang ChinhTran Quang HuyHindawi - SAGE PublishingarticlePhysical and theoretical chemistryQD450-801ENAdsorption Science & Technology, Vol 2021 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Physical and theoretical chemistry QD450-801
spellingShingle	Physical and theoretical chemistry QD450-801 Nguyen Thi Tuyet Mai Nguyen Kim Nga Dang Thi Minh Hue Ta Ngoc Dung Huynh Dang Chinh Tran Quang Huy Characterization of Co2+- and Fe3+-Codoped TiO2 Nanomaterials for Photocatalytic Degradation of Organic Pollutants under Visible Light Irradiation
description	In this study, TiO2 nanomaterials were prepared using a solvothermal method and codoped with Co2+ and Fe3+ ions for the photocatalytic degradation of organic pollutants under visible light. The physicochemical properties of the obtained materials were studied by powder X-ray diffraction, field emission electron scanning microscopy, energy-dispersive X-ray spectroscopy, and nitrogen adsorption isotherms. Optical absorption was characterized by UV-vis absorption spectroscopy. The photocatalytic activities of the prepared materials were evaluated through methylene blue (MB) degradation under visible light irradiation. Results showed the excellent performance of MB degradation investigated on TiO2 samples codoped with Co2+ and Fe3+ in comparison with undoped and Co2+-doped TiO2 samples. The codoped TiO2 samples degraded 85%–90% of MB after 120 min, whereas all the prepared TiO2 samples were composed of pure anatase phase and had a spherical-like shape and mean crystalline size ranging from 6.2 nm to 7.8 determined by Scherrer’s equation. The optical absorption of the TiO2 codoped with Co2+ and Fe3+ was significantly enhanced toward the visible light region. The pseudo-second-order kinetic model fits well for the degradation of MB on as-prepared TiO2 codoped with Co2+ and Fe3+.
format	article
author	Nguyen Thi Tuyet Mai Nguyen Kim Nga Dang Thi Minh Hue Ta Ngoc Dung Huynh Dang Chinh Tran Quang Huy
author_facet	Nguyen Thi Tuyet Mai Nguyen Kim Nga Dang Thi Minh Hue Ta Ngoc Dung Huynh Dang Chinh Tran Quang Huy
author_sort	Nguyen Thi Tuyet Mai
title	Characterization of Co2+- and Fe3+-Codoped TiO2 Nanomaterials for Photocatalytic Degradation of Organic Pollutants under Visible Light Irradiation
title_short	Characterization of Co2+- and Fe3+-Codoped TiO2 Nanomaterials for Photocatalytic Degradation of Organic Pollutants under Visible Light Irradiation
title_full	Characterization of Co2+- and Fe3+-Codoped TiO2 Nanomaterials for Photocatalytic Degradation of Organic Pollutants under Visible Light Irradiation
title_fullStr	Characterization of Co2+- and Fe3+-Codoped TiO2 Nanomaterials for Photocatalytic Degradation of Organic Pollutants under Visible Light Irradiation
title_full_unstemmed	Characterization of Co2+- and Fe3+-Codoped TiO2 Nanomaterials for Photocatalytic Degradation of Organic Pollutants under Visible Light Irradiation
title_sort	characterization of co2+- and fe3+-codoped tio2 nanomaterials for photocatalytic degradation of organic pollutants under visible light irradiation
publisher	Hindawi - SAGE Publishing
publishDate	2021
url	https://doaj.org/article/d9f4952dbdbc4a50938615bbc84e898d
work_keys_str_mv	AT nguyenthituyetmai characterizationofco2andfe3codopedtio2nanomaterialsforphotocatalyticdegradationoforganicpollutantsundervisiblelightirradiation AT nguyenkimnga characterizationofco2andfe3codopedtio2nanomaterialsforphotocatalyticdegradationoforganicpollutantsundervisiblelightirradiation AT dangthiminhhue characterizationofco2andfe3codopedtio2nanomaterialsforphotocatalyticdegradationoforganicpollutantsundervisiblelightirradiation AT tangocdung characterizationofco2andfe3codopedtio2nanomaterialsforphotocatalyticdegradationoforganicpollutantsundervisiblelightirradiation AT huynhdangchinh characterizationofco2andfe3codopedtio2nanomaterialsforphotocatalyticdegradationoforganicpollutantsundervisiblelightirradiation AT tranquanghuy characterizationofco2andfe3codopedtio2nanomaterialsforphotocatalyticdegradationoforganicpollutantsundervisiblelightirradiation
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Characterization of Co2+- and Fe3+-Codoped TiO2 Nanomaterials for Photocatalytic Degradation of Organic Pollutants under Visible Light Irradiation

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