این سایت در حال حاضر پشتیبانی نمی شود و امکان دارد داده های نشریات بروز نباشند
Advanced Ceramics Progress، جلد ۸، شماره ۴، صفحات ۱۵-۲۰
عنوان فارسی
چکیده فارسی مقاله
کلیدواژه‌های فارسی مقاله
عنوان انگلیسی Green Synthesis of Silica Extracted from Rice Husk Ash
چکیده انگلیسی مقاله There has been a significant rise in the scientific, technological, ecological, economic, and social popularity of applications of by-products or waste materials in various industries including the agricultural sector. A by-product of rice4 milling is Rice Husk (RH), which, when burned, produces Rice Husk Ash (RHA). RHA is considered an economically viable raw material used for developing silica-based products since it contains a significant amount of amorphous silica (between 85 and 95 percent). The current research aims to create a green process for producing silica powders from RHA, an inexpensive source rich in biocompatible silica. High-purity silica was successfully generated from RHA through alkaline extraction using the reflux technique and subsequent acidification. For this purpose, RH was burned in an electric furnace for five hours to create RHA at 700 °C. The obtained ash was washed with hydrochloric acid to eliminate the metallic impurities. The sodium silicate solution was then obtained by refluxing the acid-washed RHA in a NaOH solution. The final step was to precipitate silica from sodium silicate solution by adding hydrochloric acid to decrease the pH by 4. Characterizations made in general are Thermo-Gravimetric Analysis (TGA), X-Ray Fluorescence (XRF) for identifying the mineral contents of RHA, Fourier-Transform Infrared Spectroscopy (FTIR), X-Ray Diffraction (XRD), and Scanning Electron Microscopy (SEM). Simple, efficient, environmentally-friendly, and ideal for mass production are all attributes of the synthetic process.
کلیدواژه‌های انگلیسی مقاله Rice husk,Amorphous silica,Agricultural waste,Green synthesis
نویسندگان مقاله Nazli Aharipour |
MSc, Department of Materials Science and Engineering, Sharif University of Technology, Tehran, Tehran, Iran

Ali Nemati |
Professor, Department of Materials Science and Engineering, Sharif University of Technology, Tehran, Tehran, Iran

Adrine Malek Khachatourian |
Assistant Professor, Department of Materials Science and Engineering, Sharif University of Technology, Tehran, Tehran, Iran

نشانی اینترنتی https://www.acerp.ir/article_159416_6b956222b8b1b1ef86d406a2b2bc4365.pdf
فایل مقاله فایلی برای مقاله ذخیره نشده است
کد مقاله (doi)
زبان مقاله منتشر شده en
موضوعات مقاله منتشر شده
نوع مقاله منتشر شده
برگشت به: صفحه اول پایگاه   |   نسخه مرتبط   |   نشریه مرتبط   |   فهرست نشریات