کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6376260 1624844 2015 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
A novel two-staged thermal synthesis method of generating nanosilica from rice husk via pre-pyrolysis combined with calcination
ترجمه فارسی عنوان
یک روش جدید سنتز دو مرحله ای برای تولید نانوسلیکا از پوسته برنج با استفاده از پیش پریولیز همراه با کلسیم
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم کشاورزی و بیولوژیک علوم زراعت و اصلاح نباتات
چکیده انگلیسی
Rice husk is a promising precursor for producing amorphous nanosilica particles. Nanosilica particles with controllable surface areas and pore volumes have been obtained from rice husk using a novel two-staged thermal method via pre-pyrolysis combined with calcination. Nanosilica particles of different levels of purity and textural properties were produced under CO2 and N2 pyrolysis atmosphere within the temperature range of 300-800 °C. The materials synthesized at the designated pyrolysis temperature were characterized to have a purity of 95.85-99.62%, a specific surface area of 204.3-352.6 m2/g, and a total pore volume of 0.3513-0.5228 cm3/g. The morphology and non-crystal structure of the particles was studied by transmission electron microscope and X-ray powder diffractometer. The controllable textural characteristics allow these particles to be used in several scientific and technological fields, where different levels of purity and textural properties are required.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Industrial Crops and Products - Volume 65, March 2015, Pages 1-6
نویسندگان
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