Characterization of Structural, Optical and Hydrophilicity properties of TiO۲ Nano-Powder Synthesized by Sol-Gel Method
- سال انتشار: 1395
- محل انتشار: مجله سرامیک های پیشرفته، دوره: 2، شماره: 2
- کد COI اختصاصی: JR_ACERPT-2-2_001
- زبان مقاله: انگلیسی
- تعداد مشاهده: 330
نویسندگان
Faculty of Materials Science and Engineering, Islamic Azad University, Science & Research Branch
Faculty of Environment and Energy, Science and Research Branch, Islamic Azad Universi
Materials Science and Engineering, Sharif University
Faculty of Chemistry, North Tehran Branch, Islamic Azad University
Faculty of Engineering and Technology, Imam Khomeini International University (IKIU)
چکیده
In this paper, titanium dioxide nano-particles were synthesized by sol-gel method in acidic atmosphere. The microstructure, morphology, optical band gap, and hydrophilicity of the sample were studied. Optical band gap of titanium dioxide was probed via Diffuse Reflectance Spectra (DRS) and contact angle (CA) was measured to investigate surface activity. XRD analysis was used to study crystallinity of the samples. Scanning electron microscopy (SEM) and Transmission electron microscopy (TEM) was also performed. The results presented high crystallinity of particles with average particle size of ~۲۱nm. Very small nano-particles were obtained (as small as ۷nm). The obtained optical band gap of the sample was determined which was ۳.۳۵ eV with direct linear fitness in Tauc relation. Contact angle indicated super- hydrophilicity after ۴۰ minutes under UV-Radiation.کلیدواژه ها
Optical band gap, Nano-Size, Titanium dioxide, XRD, TEMاطلاعات بیشتر در مورد COI
COI مخفف عبارت CIVILICA Object Identifier به معنی شناسه سیویلیکا برای اسناد است. COI کدی است که مطابق محل انتشار، به مقالات کنفرانسها و ژورنالهای داخل کشور به هنگام نمایه سازی بر روی پایگاه استنادی سیویلیکا اختصاص می یابد.
کد COI به مفهوم کد ملی اسناد نمایه شده در سیویلیکا است و کدی یکتا و ثابت است و به همین دلیل همواره قابلیت استناد و پیگیری دارد.