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Enhancement of Photocatalytic Activity of ZnOSiO2 by Nanosized Pt for Photocatalytic Degradation of Phenol in Wastewater
Joint Authors
Source
International Journal of Photoenergy
Issue
Vol. 2012, Issue 2012 (31 Dec. 2012), pp.1-8, 8 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2012-07-26
Country of Publication
Egypt
No. of Pages
8
Main Subjects
Abstract EN
ZnO-SiO2 nanoparticles were synthesized by a sol-gel technique from Zn(NO3)2·6H2O and tetraethyl orthosilicate (TEOS).
The synthesized samples were further modified by nanosized Pt from H2PtCl6 solution through photoassisted deposition (PAD) and impregnation (Img) routes.
The obtained samples were characterized by a series of techniques including X-ray diffraction (XRD), UV-Vis diffuse reflectance spectroscopy, N2 adsorption, extended X-ray absorption fine structure (EXAFS), and transmission electron microscopy (TEM).
The photocatalytic activity of the Pt-ZnO/SiO2 was evaluated by photocatalytic degradation of phenol in synthetic wastewater under UV-irradiation.
Results obtained revealed that the surface area and the photocatalytic activity of the prepared samples were increased in the order ZnO/SiO2 < PAD: Pt-ZnO/SiO2 < img: Pt-ZnO/SiO2.
The surface area decreased from 480 to 460 and 450 m2/g, while the efficiency of the phenol degradation increased from 80 to 85 and 100%, with the ZnO/SiO2, Img: Pt-ZnO-SiO2, and PAD: Pt-ZnO-SiO2 samples, respectively.
American Psychological Association (APA)
Mohamed, R. M.& Barakat, M. A.. 2012. Enhancement of Photocatalytic Activity of ZnOSiO2 by Nanosized Pt for Photocatalytic Degradation of Phenol in Wastewater. International Journal of Photoenergy،Vol. 2012, no. 2012, pp.1-8.
https://search.emarefa.net/detail/BIM-446590
Modern Language Association (MLA)
Mohamed, R. M.& Barakat, M. A.. Enhancement of Photocatalytic Activity of ZnOSiO2 by Nanosized Pt for Photocatalytic Degradation of Phenol in Wastewater. International Journal of Photoenergy No. 2012 (2012), pp.1-8.
https://search.emarefa.net/detail/BIM-446590
American Medical Association (AMA)
Mohamed, R. M.& Barakat, M. A.. Enhancement of Photocatalytic Activity of ZnOSiO2 by Nanosized Pt for Photocatalytic Degradation of Phenol in Wastewater. International Journal of Photoenergy. 2012. Vol. 2012, no. 2012, pp.1-8.
https://search.emarefa.net/detail/BIM-446590
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-446590