| 학회 |
한국재료학회 |
| 학술대회 |
2019년 봄 (05/15 ~ 05/17, 평창 알펜시아 리조트) |
| 권호 |
25권 1호 |
| 발표분야 |
E. 환경/센서 재료 분과 |
| 제목 |
Photocatalytic Activities of Brookite TiO2 Nanorods Synthesized by a Facile Salt-assisted Ultrasonic Spray Pyrolysis Method |
| 초록 |
Brookite is the least investigated of the major three phases of TiO2 because obtaining pure brookite phase is still difficult. Here, we present the first ever the synthetic method based on salt-assisted ultrasonic spray pyrolysis process of pure brookite TiO2 nanorods. H2TiF6 and NaNO3 were used as a titanium precursor and salt for the synthesis, the NaNO3 contributes to the individual separation of primary nanostructures and the stabilization of brookite phase generated by the pyrolysis reaction of the precursor in a droplet. The synthesized nanorods were highly crystalline and phase pure as determined by X-ray diffraction and Raman spectroscopy studies. Scanning and transmission electron microscopy investigations showed the effect of the salt addition on the morphological features and the nanorods to have a one-dimensional morphology with the average diameter of about 10 nm. The photocatalytic activity of the synthesized brookite nanorod was tested employing the photodegradation of methylene blue as under Xenon lamp irradiation. The results indicated that the brookite nanorod synthesized salt-assisted ultrasonic spray pyrolysis process were superior to commercial anatase nanoparticles. |
| 저자 |
지명준, 유재현, 이영인
|
| 소속 |
서울과학기술대 |
| 키워드 |
Titanium dioxide; Brookite; Nanorod; Ultrasonic spray pyrolysis; Photocatalysis
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| E-Mail |
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