화학공학소재연구정보센터
학회 한국재료학회
학술대회 2014년 가을 (11/27 ~ 11/28, 대전컨벤션센터)
권호 20권 2호
발표분야 C. 에너지/환경 재료(Energy and Environmental Materials)
제목 Effects of the synthesis conditions to the formation of TiO2 nanotube by microwave-assisted hydrothermal method
초록 TiO2 nanotubes (TNT) synthesized by microwave-assisted hydrothermal method have more attention due to their unique properties: High surface area, ion exchange ability, high yield and low cost. The synthesis conditions such as: precursor, hydrothermal temperature and duration, post treatment (acid washing and calcination), the concentration of alkaline solution, auxiliary methods (ultrasonication and microwave-assistance) play an important role. Therefore, in this work we studied and indicated the effects of hydrothermal temperature (100oC-150oC), hydrothermal time (1-4 hour) and the concentration of NaOH solution (4M-10M) to the formation and properties of products. Samples were characterized by X-ray diffraction (XRD), Raman spectroscopy (RS), Transmission electron microscopy (TEM), Brunauer-Emmett-Teller (BET) and UV-vis DRS spectroscopy. The photocatalytic activity was investigated by degradation of Methylene Blue (MB).
저자 Huy Hao Nguyen1, Sung Hun Cho2, Soo Wohn Lee1
소속 1Research Center for Eco Multi-Functional Nanomaterials, 2Sun Moon Univ.
키워드 TiO2; nanotube; microwave; hydrothermal method; photocatalyst
E-Mail swlee@sunmoon.ac.kr