SYNTHESS OF NANO SIZE GAMMA ALUMNA PARTICLES BY PRECIPITATION/DIGESTION METHOD
Publish Year: 1390
نوع سند: مقاله کنفرانسی
زبان: English
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شناسه ملی سند علمی:
UFGNSM03_100
تاریخ نمایه سازی: 10 تیر 1396
Abstract:
Nano gamma alumina was prepared by precipitation/digestion reaction between aluminum nitrate and sodium carbonate. At the first stage bohemite was prepared by strictly controlled pH and reaction temperature then calcination process take placed in a specific thermal program, finally bohemite was changed to gamma alumina. The results showed that the alumina particles have spherical shape and their sizes are about 38 nanometer. Also, EDAX analysis showed that sodium ion impurities are removed completely from the produced alumina. Also, FTIR analysis showed that carbonate ion is removed from the prepared alumina. X-ray diffraction pattern confirmed the bohemite and gamma alumina phase formation.
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Authors
ALI ELLASSI
Department of Chemical Technologies, Iranian Research Organization for Science and Technology (IROST), No. ۲۷, Shahid Mousavi Street, Enghelab Ave., Tehran, Iran Tel: ++۹۸۲۲۸-۲۲۷۶۶۳۷. Fax: ++۹۸۲۲۸-۲۲۷۶۲۶۵
MARYAM RANJBAR
Department of Chemical Technologies, Iranian Research Organization for Science and Technology (IROST), No. ۲۷, Shahidmousavi Street, Enghelab Ave., Tehran, Iran