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Developing novel photocatalytic cementitious permeable pavements for depollution of contaminants and impurities in urban cities

Developing novel photocatalytic cementitious permeable pavements for depollution of contaminants and impurities in urban cities

Tota-Maharaj, Kiran and Coleman, Nichola (2017) Developing novel photocatalytic cementitious permeable pavements for depollution of contaminants and impurities in urban cities. In: Proceedings of the 10th International Conference on Environmental Engineering. Vilnius Gediminas Technical University (VGUT) Press, Vilnius, Lithuania, pp. 1-9. ISSN 2029-7092 (Online) (doi:10.3846/enviro.2017.053)

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Abstract

Photocatalyst such as Titanium Dioxide (TiO2) has been recently introduced as a nanoparticle into cementitious permeable pavements. Combining photocatalytic compounds within concrete permeable pavements can aid with depollution of several contaminants found in urban water streams and air impurities. This paper presents research carried out at the Uni-versity of Greenwich, UK using photocatalytic concrete with varying percentages of TiO2 (0 %, 1% and 5%) to assess the levels depollution which can be achieved.Concrete samples were testing against the degradation of 2, 4-Dichlorophenoxyacetic Acid, a harmful chemical found in herbicides. This advanced oxidation process can aid in the re-duction of urban pollution from an air and water perspective, improving sustainability for urban cities. Self-cleaning benefits of photocatalytic concrete permeable pavements can be used to keep urban infrastructure cleaner and more aesthetically pleasing. Experimental tests were carried out on the characterisation of inorganics through X-Ray diffraction and Fourier Transform Infrared Spectroscopy to ensure that the structures of the concrete samples were not altered by addition of the na-noparticles (photocatalyst). Experimental results were compared to that found in previous literature and confirmed that the addition of 5% TiO2 did not affect the structure of the concrete samples and can be a viable option used in urban infrastruc-ture such as permeable pavements.

Item Type: Conference Proceedings
Title of Proceedings: Proceedings of the 10th International Conference on Environmental Engineering
Additional Information: 10th International Conference on Environmental Engineering, Vilnius, Lithuania, 27-28 April 2017. *** © 2017 Kiran Tota-Maharaj, Nichola Coleman. Published by VGTU Press. This is an open-access article distributed under the terms of the Creative Commons Attribution (CC BY-NC 4.0) License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
Uncontrolled Keywords: Permeable pavements, Photocatalyst, Titanium dioxide, Water decontamination, Atmospheric pollution
Subjects: T Technology > TD Environmental technology. Sanitary engineering
Faculty / Department / Research Group: Faculty of Engineering & Science
Faculty of Engineering & Science > Department of Engineering Science
Faculty of Engineering & Science > Department of Pharmaceutical, Chemical & Environmental Sciences
Last Modified: 28 Sep 2017 15:29
URI: http://gala.gre.ac.uk/id/eprint/17545

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