What is it about?
In this study, a side-by-side comparison was performed to examine the effects of nano-TiO2 (nT) on the photocatalytic activity of Portland cement (PC) mixtures and its effectiveness compared to similar replacement percentages of micro-TiO2 (mT), both of which were 100% anatase.
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Why is it important?
The photocatalyst materials represent a promising solution to remediate air pollution in urban areas, which demonstrates their effectiveness and sustainability. This study focuses on evaluating the effect of humidity on the photocatalytic NO degradation of PC composites that incorporate TiO2 nano- and micro-particles introduced in the bulk of the final cementitious layer. The natural atmospheric effects on the NOx and VOC removal ability of the PC samples were evaluated.
Perspectives
In terms of industrial applications, the findings of this study can provide insight into new nano-sized TiO2 photocatalytic material applications in cement-based finishing layers as an alternative to its predecessor, which is micro-sized TiO2.
Dr. Maan S Hassan
University of Technology, Baghdad, Iraq
Read the Original
This page is a summary of: Humidity Effect on the Photocatalytic Activity of Sustainable Cement-Based Composites, The Open Civil Engineering Journal, November 2018, Bentham Science Publishers,
DOI: 10.2174/1874149501812010383.
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