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TiO2-based Photocatalytic Cementitious Composites: Materials, Properties, Influential Parameters, and Assessment Techniques

by Fatemeh Hamidi 1 and Farhad Aslani 1,2,*
1
Materials and Structures Innovation Group, School of Engineering, University of Western Australia, Crawley 6009, WA, Australia
2
School of Engineering, Edith Cowan University, Joondalup 6027, WA, Australia
*
Author to whom correspondence should be addressed.
Nanomaterials 2019, 9(10), 1444; https://doi.org/10.3390/nano9101444
Received: 2 September 2019 / Revised: 24 September 2019 / Accepted: 2 October 2019 / Published: 11 October 2019
(This article belongs to the Special Issue Photocatalytic Nanomaterials)
Applications of heterogeneous photocatalytic processes based on semiconductor particles in cement-based materials have received great attention in recent years to enhance the aesthetic durability of buildings and reducing global environmental pollution. Amongst all, titanium dioxide (TiO2) is the most widely used semiconductor particle in structural materials with photocatalytic activity because of its low cost, chemically stable nature, and absence of toxicity. Utilization of TiO2 in combination with cement-based materials would plunge the concentration of urban pollutants such as NOx. In fact, cementitious composites containing TiO2 have already found applications in self-cleaning buildings, antimicrobial surfaces, and air-purifying structures. This paper aims to present a comprehensive review on TiO2-based photocatalysis cement technology, its practical applications, and research gaps for further progression of cementitious materials with photocatalytic activity. View Full-Text
Keywords: self-cleaning surfaces; air purification; antimicrobial surfaces; TiO2; photocatalysis cementitious materials self-cleaning surfaces; air purification; antimicrobial surfaces; TiO2; photocatalysis cementitious materials
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Hamidi, F.; Aslani, F. TiO2-based Photocatalytic Cementitious Composites: Materials, Properties, Influential Parameters, and Assessment Techniques. Nanomaterials 2019, 9, 1444.

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