کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10625144 | 989615 | 2014 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Synthesis of anatase TiO2 nanotubes derived from a natural leucoxene mineral by the hydrothermal method
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سرامیک و کامپوزیت
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چکیده انگلیسی
Anatase TiO2 nanotubes were synthesized from a natural leucoxene mineral by the hydrothermal method at 105 °C over a period of 24 h. The prepared samples were calcined at various temperatures from 100 to 1000 °C in air for 2 h. The samples were characterized by X-ray diffraction (XRD), energy-dispersive X-ray spectroscopy (EDX), thermogravimetry-differential thermal analysis (TG-DTA), field emission scanning electron microscopy (FE-SEM), transmission electron microscopy (TEM), and Brunauer-Emmett-Teller (BET) analysis to determine the specific surface area. The XRD patterns revealed that the as-synthesized samples were titanate (H2Ti3O7) nanotubes. The as-synthesized samples calcined at 400 °C showed anatase TiO2 with inner and outer diameters of ~6 nm and 16 nm, respectively, and lengths in the range of 20-100 nm. The BET surface area of the anatase TiO2 nanotubes was ~82.98 m2/g. The photocatalytic activity of the anatase TiO2 nanotubes was observed to be higher than that of commercial anatase TiO2 nanoparticles (JRC-01).
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Ceramics International - Volume 40, Issue 7, Part A, August 2014, Pages 9241-9247
Journal: Ceramics International - Volume 40, Issue 7, Part A, August 2014, Pages 9241-9247
نویسندگان
Deaw Aphairaj, Thanakorn Wirunmongkol, Sutham Niyomwas, Sorapong Pavasupree, Pichet Limsuwan,