Enhanced Photocatalytic Activity of ZrO2-SiO2Nanoparticles by Platinum Doping-Reference-Cited by-同舟云学术

Enhanced Photocatalytic Activity of ZrO2-SiO2Nanoparticles by Platinum Doping

Published:2013 Issue: Volume:2013 Page:1-7
ISSN:1110-662X
Container-title:International Journal of Photoenergy
language:en
Short-container-title:International Journal of Photoenergy

Author:

Kadi Mohammad W.¹,Mohamed R. M.¹²³

Affiliation:

1. Department of Chemistry, Faculty of Science, King Abdulaziz University, P.O. Box 80203, Jeddah 21589, Saudi Arabia

2. Advanced Materials Department, Central Metallurgical R&D Institute, CMRDI, P.O. Box 87, Helwan, Cairo 11421, Egypt

3. Center of Excellence in Environmental Studies, King Abdulaziz University, P.O. Box 80216, Jeddah 21589, Saudi Arabia

Abstract

ZrO2-SiO2mixed oxides were prepared via the sol-gel method. Photo-assisted deposition was utilized for doping the prepared mixed oxide with 0.1, 0.2, 0.3, and 0.4 wt% of Pt. XRD spectra showed that doping did not result in the incorporation of Pt within the crystal structure of the material. UV-reflectance spectrometry showed that the band gap of ZrO2-SiO2decreased from 3.04 eV to 2.48 eV with 0.4 wt% Pt doping. The results show a specific surface area increase of 20%. Enhanced photocatalysis of Pt/ZrO2-SiO2was successfully tested on photo degradation of cyanide under illumination of visible light. 100% conversion was achieved within 20 min with 0.3 wt% of Pt doped ZrO2-SiO2.

Publisher

Hindawi Limited

Subject

General Materials Science,Renewable Energy, Sustainability and the Environment,Atomic and Molecular Physics, and Optics,General Chemistry

Link

http://downloads.hindawi.com/journals/ijp/2013/812097.pdf

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