Synthesis of titania nanoparticles using a nonionic water-in-oil microemulsion

سال انتشار: 1389
نوع سند: مقاله کنفرانسی
زبان: انگلیسی
مشاهده: 1,669

فایل این مقاله در 6 صفحه با فرمت PDF قابل دریافت می باشد

استخراج به نرم افزارهای پژوهشی:

لینک ثابت به این مقاله:

شناسه ملی سند علمی:

COMPOSIT02_183

تاریخ نمایه سازی: 24 مهر 1389

چکیده مقاله:

Titanium dioxide (titania) particles were prepared by a water-in-oil emulsion system, and studied for the photodecomposition property of methylene blue. Microemulsion (ME) consisted of water, cyclohexane and a anionic surfactant such as (AOT). The smallest diameter of the particles was 70 nm in the system of cyclohexane with surfactant when the molar ratio of water to surfactant was 5. The effect of the process parameters (water/surfactant ratio, temperatures) on the final characteristics has been investigated, in terms of structural phase and particle size. Titania particles prepared in this condition were collected as amorphous powder, and converted to anatase phase at less than 500°C, which is lower than the ordinal phase transition temperature. In addition, the size of particles increases with an increase of water/surfactant ratio. The titania nanopowders were characterized by means of X-ray diffraction and SEM, TEM, FT-IR, and DTA. The titania calcined at 5000C shows the highest activity on the photocatalytic decomposition of methylene blue.

نویسندگان

Mahnaz karbassi

Graduate student

Ali. Nemati

Professor, Materials science & Engineering Department, Sharif University of Technology, Tehran, Iran

Maryam Hosseini Zori

Professor, Department of Inorganic Pigments and Glazes, Institute for Colorants, Paint and Coatings, Tehran, Iran.

مراجع و منابع این مقاله:

لیست زیر مراجع و منابع استفاده شده در این مقاله را نمایش می دهد. این مراجع به صورت کاملا ماشینی و بر اساس هوش مصنوعی استخراج شده اند و لذا ممکن است دارای اشکالاتی باشند که به مرور زمان دقت استخراج این محتوا افزایش می یابد. مراجعی که مقالات مربوط به آنها در سیویلیکا نمایه شده و پیدا شده اند، به خود مقاله لینک شده اند :
  • J. Eastoe, J. Martin, L. Hollamby and L.Hudson, Recent advances ...
  • P.D.I. Fletcher, A.M. Howe, B.H. Robinson, J. Chem. Soc. Faraday ...
  • Tadao Sugimoto, Underlying mechanisms in size control of uniform nanoparticles, ...
  • Yu J.C, Leung M.K.P., Ho W., Cheng B., Zhao X. ...
  • J.Wang, Jiang Y. F., Zhang Z. H., Zhang X. D., ...
  • Wang X. Y., Yi Z. J., Zhang L. S., Wang ...
  • S.Yamazaki, A. Yoshid. And H.Abe, Photocatalytic degradation of chloroform in ...
  • C. J.Ren, B. H.Zhong, G. Q. Chen and W. M.Fang, ...
  • C.Z.Fang, Y.W.Chen, Preparation of titania particles by thermal hydrolysis of ...
  • M.Yasushige and Y.Okastu and Y.Tsujimoto, Titanium dioxide nanoparticles produced in ...
  • M.S.Lee, G.Lee, S.S Park. And S.S. Hong, Synthesis of TiO; ...
  • H.Sakai, H.Kawahara, M.Shimazaki and M.Abe, Preparation of Ultrafine Titanium Dioxide ...
  • M.S.Lee, S.S.Park, G.D.Lee, C.S Ju and S.S.Hong, Synthesis of TiO, ...
  • M.S.Lee, S.S.Park, G.D.Lee, C.S.Ju and S.S.Hong, Preparations of nanosizedTiO, in ...
  • E.G.Kim and S.H.Hahn, Micros tructural changes of microemulsion -mediated TiOn ...
  • P.D. Moran, J.R. Bartlett, G.A. Bowmaker, J.L. Woolrey, and R.P. ...
  • S.N. Hosseini, S.M. Borghei, M.Vossoughi, N.Taghavinia; Applied catalysis B: Environmenta ...
  • M.Sreemany and, S.Sen; Materials Research Bulletin, 42, (2007). ...
  • S.S.Honga, M.S.Lee, G.D.Lee, K.T.Limb and B.J.Hac, Synthesis of titanium dioxides ...
  • نمایش کامل مراجع