With the increasing importance of environmental issues, the cementitious materials with self-cleaning or photocatalytic properties by introducing TiO<sub>2</sub> materials have been gaining a lot of attention. In this work, the influence o...
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https://www.riss.kr/link?id=A107174441
2020
-
광촉매 ; 비표면적 ; 입자 크기 ; 구조 ; 시멘트 페이스트 ; photocatalysis ; anatase TiO<sub>2</ sub> ; specific surface area ; particle size ; structure ; cement paste
500
학술저널
85-86(2쪽)
0
상세조회0
다운로드다국어 초록 (Multilingual Abstract)
With the increasing importance of environmental issues, the cementitious materials with self-cleaning or photocatalytic properties by introducing TiO<sub>2</sub> materials have been gaining a lot of attention. In this work, the influence o...
With the increasing importance of environmental issues, the cementitious materials with self-cleaning or photocatalytic properties by introducing TiO<sub>2</sub> materials have been gaining a lot of attention. In this work, the influence of TiO<sub>2</sub> particle size and structure on its photocatalytic effect in cement paste was investigated. The degradation of methylene blue solution was used as the parameter for evaluating the photocatalytic effect of micro-TiO<sub>2</sub> (m-TiO<sub>2</sub>), nano-TiO<sub>2</sub> (n-TiO<sub>2</sub>), and TiO<sub>2</sub> nanotube (TNT). Moreover, the effect of these three TiO<sub>2</sub> materials on the cement hydration products was characterized by X-ray diffraction (XRD) and thermgravimetric analysis (TG). According to the results, it can be found that all of the TiO<sub>2</sub> materials promoted the formation of hydration products, especially TNT. On the other hand, the m-TiO<sub>2</sub> exhibited a better photocatalytic effect compared to other materials.
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