|Title:||Effect of TiO2 Addition on Mortars: Characterization and Photoactivity||Authors:||Hernandez Rodriguez, María José
Santana Rodríguez, Ricardo Javier
González Díaz, O.
Pérez Luzardo, José Manuel
Pulido Melián, E.
|UNESCO Clasification:||330301 Tecnología de la catálisis||Keywords:||Titanium-Dioxide
Microstructure, et al
|Issue Date:||2019||Project:||Hormigones Fotocatalíticos
Eliminacion Fotocatalitica de Mezclas de Nox y Covs en Emisiones Gaseosas Con Ti02 y Oxidos Mixtos.
|Journal:||Applied Sciences (Basel)||Abstract:||In this study, mortar specimens were prepared with a cement:sand:water ratio of 1:3:0.5, in accordance with standard EN196-1. Portland CEM I 52.5 R grey (G) and white (W) cements were used, together with normalised sand and distilled water. Different amounts of TiO2 photocatalyst were incorporated in the preparation of the mortar samples. The effect of the addition of TiO2 was studied on mechanical properties of the mortar and cement including compressive and flexural strength, consistency (the flow table test), setting time and carbonation. Characterization techniques, including thermogravimetry, mercury porosimetry and X-ray diffraction spectroscopy (XRD), were applied to study the physico-chemical properties of the mortars. It was shown that adding the photocatalyst to the mortar had no negative effect on its properties and could be used to accelerate the setting process. Specimen photoactivity with the incorporated photocatalyst was tested for NOx oxidation in different conditions of humidity (0% RH and 65% RH) and illumination (Vis or Vis/UV), with the results showing an important activity even under Vis radiation.||URI:||http://hdl.handle.net/10553/59376||ISSN:||2076-3417||DOI:||10.3390/app9132598||Source:||Applied Sciences-Basel [ISSN 2076-3417],v. 9 (13), 2598|
|Appears in Collections:||Artículos|
Items in accedaCRIS are protected by copyright, with all rights reserved, unless otherwise indicated.