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Preparation of N-TiO2 Using a MicrowaveSol-Gel Method and Its Photocatalytic Activity for Bisphenol A under Visible-Light and Sunlight Irradiation
Joint Authors
Lin, Chin-Jung
Kuo, Chao-Yin
Wu, Chung-Hsin
Chiu, Peng-Ke
Source
International Journal of Photoenergy
Issue
Vol. 2013, Issue 2013 (31 Dec. 2013), pp.1-9, 9 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2013-02-24
Country of Publication
Egypt
No. of Pages
9
Main Subjects
Abstract EN
This study applied the microwave/sol-gel method to prepare nitrogen-doped TiO2 (N-TiO2).
The N-TiO2 was immobilized in glass balls to form N-TiO2/glass beads and applied to degrade Bisphenol A (BPA) under visible-light and sunlight irradiation.
The characteristics of the prepared photocatalysts were analyzed by X-ray diffraction (XRD), UV-Vis spectroscopy, Fourier transform infrared spectroscopy (FTIR), and X-ray photoelectron spectroscopy (XPS).
Experimental results demonstrate that the percentage of anatase increased as the amount of N in N-TiO2 increased.
Compared with the undoped TiO2 (420 nm), spectra show that the absorption edge shifted to a longer wavelength (445 nm) after N doping.
The XPS characterization confirms the substitution of crystal lattice O to N species in N-TiO2, forming Ti–O–N and N–Ti–O.
With an increased N/Ti ratio, photodegradation efficiency increased and then decreased; moreover, the optimal amount for N doping was determined as an N/Ti mole ratio of 0.08 (0.1 NT).
The efficiency of 0.1 NT in doing BPA photodegradation was greater than that of Degussa P25.
After reaction for 61 min, the mineralization percentage of 0.1 NT under visible-light irradiation reached 41%.
Photocatalyst efficiency decreased as the number of repeats increased in the visible-light/N-TiO2 system; however, these systems were stable during reaction.
American Psychological Association (APA)
Wu, Chung-Hsin& Kuo, Chao-Yin& Lin, Chin-Jung& Chiu, Peng-Ke. 2013. Preparation of N-TiO2 Using a MicrowaveSol-Gel Method and Its Photocatalytic Activity for Bisphenol A under Visible-Light and Sunlight Irradiation. International Journal of Photoenergy،Vol. 2013, no. 2013, pp.1-9.
https://search.emarefa.net/detail/BIM-472412
Modern Language Association (MLA)
Wu, Chung-Hsin…[et al.]. Preparation of N-TiO2 Using a MicrowaveSol-Gel Method and Its Photocatalytic Activity for Bisphenol A under Visible-Light and Sunlight Irradiation. International Journal of Photoenergy No. 2013 (2013), pp.1-9.
https://search.emarefa.net/detail/BIM-472412
American Medical Association (AMA)
Wu, Chung-Hsin& Kuo, Chao-Yin& Lin, Chin-Jung& Chiu, Peng-Ke. Preparation of N-TiO2 Using a MicrowaveSol-Gel Method and Its Photocatalytic Activity for Bisphenol A under Visible-Light and Sunlight Irradiation. International Journal of Photoenergy. 2013. Vol. 2013, no. 2013, pp.1-9.
https://search.emarefa.net/detail/BIM-472412
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-472412