Co-doped mesoporous titania photocatalysts prepared from a peroxo-titanium complex solution

El Saliby, Ibrahim and Erdei, Laszlo and McDonagh, Andrew and Kim, Jong-Beom and Kim, Jong-Ho and Shon, Ho Kyong (2014) Co-doped mesoporous titania photocatalysts prepared from a peroxo-titanium complex solution. Materials Research Bulletin , 49 (1). pp. 7-13. ISSN 0025-5408


In this study, nitrogen doped and nitrogen/silver co-doped TiO2 photocatalsysts were fabricated using a sol-gel method at room temperature. The obtained gels were neutralized, washed with pure water, and calcined at 400 C for 4 h. The photocatalysts were characterized by scanning and transmission electron microscopy, X-ray diffraction, diffuse reflectance spectroscopy, X-ray photoelectron spectroscopy, and BET specific surface area. The results showed that spherical particles with anatase structure were produced after annealing at 400 C. N 1s (400 eV) and Ag 3d (367.3 eV) states indicated that nitrogen doping and silver co-doping were in the form of NO bonds and AgO, respectively. The photocatalytic activity of photocatalysts was investigated using a batch reactor system exposed to artificial solar irradiation. Both nitrogen and silver/nitrogen co-doped materials were effective in the photocatalytic degradation of hexamethyl pararosaniline chloride.

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Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Additional Information: © 2013 Elsevier Ltd. All rights reserved. Published version deposited in accordance with the copyright policy of the publisher.
Faculty/School / Institute/Centre: Current - Faculty of Health, Engineering and Sciences - School of Agricultural, Computational and Environmental Sciences
Date Deposited: 02 Oct 2013 22:53
Last Modified: 01 Jul 2016 03:47
Uncontrolled Keywords: oxide; TiO2; transmission electron microscopy; TEM; X-ray diffraction; catalytic properties
Fields of Research : 09 Engineering > 0904 Chemical Engineering > 090409 Wastewater Treatment Processes
10 Technology > 1007 Nanotechnology > 100701 Environmental Nanotechnology
03 Chemical Sciences > 0306 Physical Chemistry (incl. Structural) > 030601 Catalysis and Mechanisms of Reactions
Socio-Economic Objective: E Expanding Knowledge > 97 Expanding Knowledge > 970103 Expanding Knowledge in the Chemical Sciences
Identification Number or DOI: 10.1016/j.materresbull.2013.08.047

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