Current synthesis processes for titanium dioxide (TiO2) nanoparticles require expensive precursors or templates as well as complex steps and long reaction times. In addition, these processes produce highly agglomerated nanoparticles. In this study, we demonstrate a simple and continuous approach to synthesize TiO2 nanoparticles by a salt-assisted ultrasonic spray pyrolysis method. We also investigate the effect of salt content in a precursor solution on the morphology and size of synthesized products. The synthesized TiO2 nanoparticles are systematically characterized by X-ray diffraction, transmission electron micrograph, and UV-Vis spectroscopy. These nanoparticles appear to have a single anatase phase and a uniform particle-size distribution with an average particle size of approximately 10 nm. By extrapolating the plots of the transformed Kubelka-Munk function versus the absorbed light energy, we determine that the energy band gap of the synthesized TiO2 nanoparticles is 3.25 eV

Abstract
 1. 서 론
 2. 실험 방법
 3. 결과 및 고찰
 4. 결 론
 References

• 지명준(서울과학기술대학교 신소재공학과) | Myeong-Jun Ji (Department of Materials Science and Engineering, Seoul National University of Science and Technology)
• 박우영(서울과학기술대학교 신소재공학과) | Woo-Young Park (Department of Materials Science and Engineering, Seoul National University of Science and Technology)
• 유재현(서울과학기술대학교 신소재공학과) | Jae-Hyun Yoo (Department of Materials Science and Engineering, Seoul National University of Science and Technology)
• 이영인(서울과학기술대학교 신소재공학과) | Young-In Lee (Department of Materials Science and Engineering, Seoul National University of Science and Technology) Corresponding Author