کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
591458 1453869 2016 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Synthesis method for crystalline hollow titania micron-cubes
ترجمه فارسی عنوان
روش سنتز متبلور تیتانیا توخالی میکرون مکعب
کلمات کلیدی
تیتانیا آناتاز؛ تیتانیا روتیل؛ کلوئید مکعب؛ مکعبها؛ هسته-پوسته
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی شیمی کلوئیدی و سطحی
چکیده انگلیسی


• A straightforward synthesis method for cubic titania colloids is presented.
• The synthesis method only requires conventional chemicals and ambient conditions.
• Hollow and core–shell hematite@titania colloids are prepared.
• The cubic shape allows for the formation of dense colloidal arrays.

We report the synthesis of novel micron-sized titania cubes comprising a hematite core and a titania shell. Single core particles are entirely coated with a homogeneous titania shell of tunable thickness. Our convenient and straightforward synthesis method is mediated by the surfactant cetyltrimethylammonium bromide (CTAB) and proceeds under ambient conditions. Subsequent calcination transforms the amorphous titania shell to anatase/rutile titania; dissolution of the hematite core eventually results in hollow porous titania cubes. The resulting core–shell and hollow titania cubes display the tendency to align face-to-face, indicating their potential for utilization in close-packed arrays.

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ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Colloids and Surfaces A: Physicochemical and Engineering Aspects - Volume 504, 5 September 2016, Pages 228–233
نویسندگان
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