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Title |
Evaluation of the Removal Performance of Nitrogen Oxides of Foam Composites Using Activated Carbon and Titanium Dioxide
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Authors |
최현철(Hyun-Chul Choi) ; 최영철(Young-Cheol Choi) |
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DOI |
https://doi.org/10.11112/jksmi.2022.26.6.120 |
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Keywords |
질소산화물; 활성탄소; 이산화타이타늄; 폼 복합체; 비표면적 Nitogen oxide; Activated carbon; Titanium dioxide; Foam composite; Specific surface area |
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Abstract |
Nitrogen oxide(NOx) is a major cause of air pollution, exists in the form of nitrogen monoxide and nitrogen dioxide, and is harmful to thehuman body. Recently, a number of studies to reduce NOx in the atmosphere have been conducted, and these efforts have been the same in the fieldof construction materials. It is known that NOx can be efficiently removed by using a photocatalytic reaction. In this study, the NOx removal performanceof the foam composite using activated carbon(AC) and titanium dioxide(TiO2) was investigated. AC was used to enhance the photocatalytic reactionof TiO2 by increasing the internal specific surface area of the foam composite. In this study, foam composites were prepared using the substitutionrate of AC as the main variable. The NOx removal performance of specimen was evaluated according to the test method presented in ISO-22197-1. The specific surface area of the foam composite showed a tendency to increase according to the AC content, but decreased at 15% or more. Also, whenthe AC substitution rate was 15%, the NOx removal efficiency was the highest.
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