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Open AccessArticle

Multifunctional and Environmentally Friendly TiO2–SiO2 Mesoporous Materials for Sustainable Green Buildings

1
CATMAT Lab, Department of Molecular Sciences and Nanosystems, Ca’ Foscari University Venice and Consortium INSTM, RU of Venice, Via Torino 155, 30172 Venezia, Italy
2
Department of Drug Science and Technology & NIS—Centre for Nanostructured Interfaces and Surfaces, University of Turin, Via P. Giuria 7, 10125 Turin, Italy
3
Department of Physics and Geology, University of Perugia, Via Pascoli, 06123 Perugia, Italy
4
Civil and Environmental Engineering Department, University of Perugia, UdR INSTM, Strada di Pentima 4, 05100 Terni, Italy
*
Author to whom correspondence should be addressed.
Academic Editor: Giuseppina Pinuccia Cerrato
Molecules 2019, 24(23), 4226; https://doi.org/10.3390/molecules24234226
Received: 8 October 2019 / Revised: 12 November 2019 / Accepted: 15 November 2019 / Published: 20 November 2019
(This article belongs to the Special Issue Advances in TiO2 Photocatalysis)
This work deals with the formulation of environmentally friendly, cheap, and readily-available materials for green building applications, providing the function of air purificator by improving the safety and the comfort of an indoor environment. High surface area TiO2–SiO2 samples, prepared by a simple, cost effective, and scalable synthetic approach, proved to be effective in maximizing the properties of each component, i.e., the photocatalytic properties of titania and the high surface area of silica. TiO2 was introduced onto an ordered mesoporous silica Santa Barbara Amorphous-15 (SBA-15), that is featured by interesting insulating features, by using an incipient wetness impregnation method. The photocatalytic activity was evaluated in gas phase oxidation of ethylbenzene, which was selected as model volatile organic compound (VOC) molecule. The morphological, textural and structural features along with the electronic properties, the hydrophilicity and heat capacity of the materials were investigated in depth by scanning electron microscopy, powder X-ray diffraction, N2 physisorption, diffuse reflectance UV-Vis, FT-IR spectroscopies, and modulated DSC (MDSC) dynamic scan. Outstanding performances in the ethylbenzene abatement results are promising for further application in the green building sector. View Full-Text
Keywords: TiO2; silica; VOC; photocatalysis; surface area; anatase; green building; insulating TiO2; silica; VOC; photocatalysis; surface area; anatase; green building; insulating
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MDPI and ACS Style

Ghedini, E.; Menegazzo, F.; Manzoli, M.; Di Michele, A.; Puglia, D.; Signoretto, M. Multifunctional and Environmentally Friendly TiO2–SiO2 Mesoporous Materials for Sustainable Green Buildings. Molecules 2019, 24, 4226.

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