Next Article in Journal
Cellular Response to Doping of High Porosity Foamed Alumina with Ca, P, Mg, and Si
Next Article in Special Issue
One-Step Formation of WO3-Loaded TiO2 Nanotubes Composite Film for High Photocatalytic Performance
Previous Article in Journal
Structure and Transport Properties of the BiCuSeO-BiCuSO Solid Solution
Previous Article in Special Issue
TiO2-Mediated Photocatalytic Mineralization of a Non-Ionic Detergent: Comparison and Combination with Other Advanced Oxidation Procedures
Article Menu

Export Article

Open AccessArticle
Materials 2015, 8(3), 1059-1073;

Photocatalytic, Morphological and Structural Properties of the TiO2-SiO2-Ag Porous Structures Based System

Faculty of Chemistry and Chemical Engineering, Babeș-Bolyai University, Arany János 11, RO-400028 Cluj-Napoca, Romania
Faculty of Physics, Babeș-Bolyai University, M. Kogălniceanu 1, RO-400084 Cluj-Napoca, Romania
Faculty of Science and Informatics, Department of Applied and Environmental Chemistry, University of Szeged, Rerrich Béla tér 1, H-6720 Szeged, Hungary
Institute for Interdisciplinary Research on Bio-Nano-Sciences, Babeș-Bolyai University, M. Kogălniceanu 1, RO-400084 Cluj-Napoca, Romania
These authors contributed equally to this work.
Author to whom correspondence should be addressed.
Academic Editor: Klara Hernadi
Received: 18 December 2014 / Revised: 19 February 2015 / Accepted: 28 February 2015 / Published: 12 March 2015
(This article belongs to the Special Issue Photocatalytic Materials)
Full-Text   |   PDF [900 KB, uploaded 12 March 2015]   |  


TiO2-SiO2-based nanocomposites with highly porous structures are gaining ever increasing attention due to their specific properties and large variability of synthesis pathways together with wide information on the impact of the synthesis on the activity of the catalyst. This thereby offers an alternative approach to traditional/commercially available photocatalysts. In our work TiO2-SiO2 based aerogels were obtained and modified with various amount of Ag nanoparticles, using different synthesis pathways. In the first instance their photocatalytic activity was examined in detail, by observing major differences toward salicylic acid and correlating them with their morphological and structural properties (investigating their mesoporous character, band-gap values, crystallinity grade etc.). Applying different techniques such as diffuse reflectance spectroscopy (DRS), X-ray diffraction measurements (XRD), transmission electron microscopy (TEM), Raman- and X-ray photoelectron spectroscopy (XPS) the nanoparticles and their composite morphological and structural details were successfully evaluated. Major differences were observed in the activity towards salicylic acid. View Full-Text
Keywords: titanium-dioxide; aerogels; silver nanoparticles; photocatalysis titanium-dioxide; aerogels; silver nanoparticles; photocatalysis

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).

Share & Cite This Article

MDPI and ACS Style

Kovács, G.; Pap, Z.; Coteț, C.; Coșoveanu, V.; Baia, L.; Danciu, V. Photocatalytic, Morphological and Structural Properties of the TiO2-SiO2-Ag Porous Structures Based System. Materials 2015, 8, 1059-1073.

Show more citation formats Show less citations formats

Related Articles

Article Metrics

Article Access Statistics



[Return to top]
Materials EISSN 1996-1944 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top