CeO2-TiO2 for Photoreduction Of CO2 To Methanol Under Visible Light: Effect Of Ceria Loading

A visible light-driven photocatalyst, CeO2-TiO2 catalyst with different ceria loading was synthesized by impregnation method between TiO2 powder and cerium oxide nanoparticles slurry. The prepared catalyst samples were characterized by X-ray diffraction (XRD), surface area analysis, UV-vis absorp...

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Main Authors: Hamidah, Abdullah, Nur Aminatulmimi, Ismail, Zahira, Yaakob, Khan, Maksudur R., Syarifah, Abd Rahim
Format: Article
Language:English
Published: The Malaysian Analytical Sciences Society 2017
Subjects:
Online Access:http://umpir.ump.edu.my/id/eprint/17702/1/fkksa-2017-hamidah-%20CeO2-TiO2%20for%20Photoreduction.pdf
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author Hamidah, Abdullah
Nur Aminatulmimi, Ismail
Zahira, Yaakob
Khan, Maksudur R.
Syarifah, Abd Rahim
author_facet Hamidah, Abdullah
Nur Aminatulmimi, Ismail
Zahira, Yaakob
Khan, Maksudur R.
Syarifah, Abd Rahim
author_sort Hamidah, Abdullah
collection UMP
description A visible light-driven photocatalyst, CeO2-TiO2 catalyst with different ceria loading was synthesized by impregnation method between TiO2 powder and cerium oxide nanoparticles slurry. The prepared catalyst samples were characterized by X-ray diffraction (XRD), surface area analysis, UV-vis absorption spectroscopy and photoluminescence spectroscopy (PL). The band gap of CeO2-TiO2 catalyst was found to be 2.15–2.4 eV. The band gap reduction clearly indicated the successful loading of CeO2 on TiO2. The photocatalytic activity was determined by measuring the photoreduction of CO2 to methanol in aqueous solution under visible light. The effect of cerium loading in the range of 1 to 5 wt% on the photocatalytic activity was studied and 2 wt% CeO2-TiO2 was found to exhibit the maximum photoactivity of 18.6 μmo l/g.catalyst after 6 hours irradiation. Results showed that the prepared photocatalyst is visible light active and may be used as effective catalyst in photoreduction of CO2 to methanol.
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spelling UMPir177022018-03-27T04:15:49Z http://umpir.ump.edu.my/id/eprint/17702/ CeO2-TiO2 for Photoreduction Of CO2 To Methanol Under Visible Light: Effect Of Ceria Loading Hamidah, Abdullah Nur Aminatulmimi, Ismail Zahira, Yaakob Khan, Maksudur R. Syarifah, Abd Rahim TP Chemical technology A visible light-driven photocatalyst, CeO2-TiO2 catalyst with different ceria loading was synthesized by impregnation method between TiO2 powder and cerium oxide nanoparticles slurry. The prepared catalyst samples were characterized by X-ray diffraction (XRD), surface area analysis, UV-vis absorption spectroscopy and photoluminescence spectroscopy (PL). The band gap of CeO2-TiO2 catalyst was found to be 2.15–2.4 eV. The band gap reduction clearly indicated the successful loading of CeO2 on TiO2. The photocatalytic activity was determined by measuring the photoreduction of CO2 to methanol in aqueous solution under visible light. The effect of cerium loading in the range of 1 to 5 wt% on the photocatalytic activity was studied and 2 wt% CeO2-TiO2 was found to exhibit the maximum photoactivity of 18.6 μmo l/g.catalyst after 6 hours irradiation. Results showed that the prepared photocatalyst is visible light active and may be used as effective catalyst in photoreduction of CO2 to methanol. The Malaysian Analytical Sciences Society 2017 Article PeerReviewed application/pdf en http://umpir.ump.edu.my/id/eprint/17702/1/fkksa-2017-hamidah-%20CeO2-TiO2%20for%20Photoreduction.pdf Hamidah, Abdullah and Nur Aminatulmimi, Ismail and Zahira, Yaakob and Khan, Maksudur R. and Syarifah, Abd Rahim (2017) CeO2-TiO2 for Photoreduction Of CO2 To Methanol Under Visible Light: Effect Of Ceria Loading. Malaysian Journal of Analytical Sciences, 21 (1). pp. 166-172. ISSN 1394-2506. (Published) http://dx.doi.org/10.17576/mjas-2017-2101-19 doi: 10.17576/mjas-2017-2101-19
spellingShingle TP Chemical technology
Hamidah, Abdullah
Nur Aminatulmimi, Ismail
Zahira, Yaakob
Khan, Maksudur R.
Syarifah, Abd Rahim
CeO2-TiO2 for Photoreduction Of CO2 To Methanol Under Visible Light: Effect Of Ceria Loading
title CeO2-TiO2 for Photoreduction Of CO2 To Methanol Under Visible Light: Effect Of Ceria Loading
title_full CeO2-TiO2 for Photoreduction Of CO2 To Methanol Under Visible Light: Effect Of Ceria Loading
title_fullStr CeO2-TiO2 for Photoreduction Of CO2 To Methanol Under Visible Light: Effect Of Ceria Loading
title_full_unstemmed CeO2-TiO2 for Photoreduction Of CO2 To Methanol Under Visible Light: Effect Of Ceria Loading
title_short CeO2-TiO2 for Photoreduction Of CO2 To Methanol Under Visible Light: Effect Of Ceria Loading
title_sort ceo2 tio2 for photoreduction of co2 to methanol under visible light effect of ceria loading
topic TP Chemical technology
url http://umpir.ump.edu.my/id/eprint/17702/1/fkksa-2017-hamidah-%20CeO2-TiO2%20for%20Photoreduction.pdf
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