Effect of Li(I) and TiO2 on the Upconversion Luminance of Pr:Y2SiO5 and Its Photodegradation on Nitrobenzene Wastewater
Joint Authors
Yang, Yi
Xia, Guang-Zhi
Liu, Cheng
Zhang, Jin-Hua
Wang, Lian-Jun
Source
Issue
Vol. 2015, Issue 2015 (31 Dec. 2015), pp.1-7, 7 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2015-01-18
Country of Publication
Egypt
No. of Pages
7
Main Subjects
Abstract EN
Based on the substrate of Pr:Y2SiO5 upconversion nanomaterials, lithium ion Li(I) doped Pr:Y2SiO5 and TiO2 nanofilm coated Li,Pr:Y2SiO5 composites were prepared by using a sol-gel method.
X-ray diffractometer, SEM, and fluorescence spectrometer have been employed to test the crystal structure, microimages, and upconversion luminescence performances.
The doping of Li(I) affects highly the crystal transition of Pr:Y2SiO5 and X2-Y2SiO5 phase was well formed by doping 8% Li(I).
Furthermore, the doping of Li(I) also brings high luminance intensity of Pr:Y2SiO5 and contributes to a maximum intensity of 9.76 × 106 cps doped 8%.
Too much of Li(I) doping would result in big crystal size and fluorescence quenching of Pr:Y2SiO5 material.
However, the coating of TiO2 nanofilm is not helping in increasing the upconversion fluorescence of Li,Pr:Y2SiO5 but is promoting the full use of the fluorescence.
The luminescence intensities of TiO2/Li,Pr:Y2SiO5 composites are getting down sharply with the coating amount since the luminescence emitted by Li,Pr:Y2SiO5 is quickly adsorbed in situ by the TiO2 coating film.
With the optimum coating concentration of 1%, the TiO2/Li,Pr:Y2SiO5 composite shows excellent photodegradation performances on nitrobenzene wastewater, though it shows a low luminescence intensity.
For 5 mg/L nitrobenzene wastewater, the composite presents a photodegradation rate of 97.08% in 4 hours.
American Psychological Association (APA)
Yang, Yi& Xia, Guang-Zhi& Liu, Cheng& Zhang, Jin-Hua& Wang, Lian-Jun. 2015. Effect of Li(I) and TiO2 on the Upconversion Luminance of Pr:Y2SiO5 and Its Photodegradation on Nitrobenzene Wastewater. Journal of Chemistry،Vol. 2015, no. 2015, pp.1-7.
https://search.emarefa.net/detail/BIM-1067710
Modern Language Association (MLA)
Yang, Yi…[et al.]. Effect of Li(I) and TiO2 on the Upconversion Luminance of Pr:Y2SiO5 and Its Photodegradation on Nitrobenzene Wastewater. Journal of Chemistry No. 2015 (2015), pp.1-7.
https://search.emarefa.net/detail/BIM-1067710
American Medical Association (AMA)
Yang, Yi& Xia, Guang-Zhi& Liu, Cheng& Zhang, Jin-Hua& Wang, Lian-Jun. Effect of Li(I) and TiO2 on the Upconversion Luminance of Pr:Y2SiO5 and Its Photodegradation on Nitrobenzene Wastewater. Journal of Chemistry. 2015. Vol. 2015, no. 2015, pp.1-7.
https://search.emarefa.net/detail/BIM-1067710
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1067710