Fateme Mirjalili
Department of material engineering,faculty of engineering,Islamic azad university Maybod beranch,Iran
[ 1 ] - The effect of different pHs, Surfactants and dialyses times on preparation of nano Rod Hydroxyapatite
Nano HA rod was synthesized by precipitation method using Ca(NO3)24H2O and (NH4)2HPO4 as starting materials and ammonia solution as an agent for pH adjustment. The Ca/P molar ratio was maintained at 1.67. Then, the effect of different pH (4, 6, 8, 10, 11), different surfactants and different times for dialyses on nano HA rod were studied in this study. The samples were characterized by differen...
[ 2 ] - بررسی اثر عوامل فعال سطحی مختلف بر سنتز پودر نانو کامپوزیت β-TCP/HA
پودر نانو کامپوزیت بتا تری‌کلسیم فسفات/ هیدروکسی آپاتیت (β-TCP/ HA) از روش رسوب شیمیایی در دمای 1100 درجه سانتی‌گراد به مدت 2 ساعت سنتز و شناسایی شد و سپس تأثیر عوامل فعال سطحی مختلف بر پودر حاصل مورد بررسی قرارگرفت. ساختار بلوری و فازهای حاصل با پراش پرتو ایکس (XRD) و طیف سنجی فروسرخ تبدیل فوریه (FTIR) مورد مطالعه قرار گرفت. بررسی اندازه و ریخت‌شناسی ذرات و اگلومراسیون پودرهای به‌دست آمده توسط...
[ 3 ] - Preparation and Characterization of TiO2 Nanoparticles Prepared by Sol-Gel Method
In this study, TiO2 nanoparticles have been synthesized by sol-gel method. Then, the effects of the different pHs, stirring times, surfactants (CTAB and Span 20) and temperatures on TiO2 nanoparticles were studied. The X-ray diffraction (XRD), Fourier transforms infrared spectroscopy (FTIR), and transmission electron microscopy (TEM) analyses were used to characterize the samples. The obs...
[ 4 ] - Investigation of the effect of different percentages of material on the microstructure and morphology of montmorillonite nanoparticles
In this research, Montmorillonite clay nanoparticles were produced using mechanical methods and the effect of different percentages of tetra n-butyl ammonium chloride (TNBAC) as a surfactant and butyl ammonium chloride as a modifier (TNBAC) was performed. The microstructural and morphological properties of montmorillonite clay nanoparticles in the presence and absence of surfactant as well as s...
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