کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5438089 | 1398180 | 2017 | 31 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Optimization of colloidal nanosilica production from expanded perlite using Taguchi design of experiments
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سرامیک و کامپوزیت
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![عکس صفحه اول مقاله: Optimization of colloidal nanosilica production from expanded perlite using Taguchi design of experiments Optimization of colloidal nanosilica production from expanded perlite using Taguchi design of experiments](/preview/png/5438089.png)
چکیده انگلیسی
Colloidal nanosilica was prepared from perlite in two stages: production of wet gel and thermal peptization. The influence of acidic and alkaline solutions concentration, temperature and pH of the gel were investigated in wet gel production using Taguchi design of experiments. Effect of the temperature of the peptization process was studied by full factorial design. The purity of the obtained silica gel was analyzed using X-ray fluorescence (XRF) and the colloidal silica was characterized by dynamic laser scattering (DLS), field emission scanning electron microscope (FESEM) and N2 sorption analyses. Results showed that pure colloidal nanosilica with purity of 99% was produced and the particle size of the product was in the range of 8Â nm and 74Â nm. Specific surface area of dried optimized mesoporous sample was 74.28Â m2/g.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Ceramics International - Volume 43, Issue 14, 1 October 2017, Pages 11318-11323
Journal: Ceramics International - Volume 43, Issue 14, 1 October 2017, Pages 11318-11323
نویسندگان
Zohreh Asadi, Reza Norouzbeigi,