Facile and Economic Method for the Preparation of Core-Shell Magnetic Mesoporous Silica
سال انتشار: 1398
نوع سند: مقاله ژورنالی
زبان: انگلیسی
مشاهده: 50
فایل این مقاله در 9 صفحه با فرمت PDF قابل دریافت می باشد
- صدور گواهی نمایه سازی
- من نویسنده این مقاله هستم
استخراج به نرم افزارهای پژوهشی:
شناسه ملی سند علمی:
JR_IJCCE-38-5_001
تاریخ نمایه سازی: 17 خرداد 1404
چکیده مقاله:
In this work core-shell structure Fe۳O۴@SiO۲@meso-SiO۲ microsphere has been successfully prepared. An inorganic magnetic core has been coated with multi-shell structure, dense nonporous silica as an inner layer and mesoporous silica as an outer layer. The dense silica shell can enhance the stability and minimize the negative effect of acidic conditions on the inner core and the porous outer shell can provide high surface area and enhance the loading of a functionalized group. Cetyltrimethylammonium bromide (CTAB) has been used as a pore-forming agent and a modified methodology was adopted to improve the extraction condition of this kind of surfactant. The as-prepared microspheres were characterized by Field Emission Scanning Electron Microscope (FESEM), X-Ray Diffraction (XRD), Fourier Transform InfraRed (FT-IR) spectroscopy, Vibration Sample Magnetometer (VSM), N۲ adsorption-desorption, and Particle Size Analyzer (PSA). The resulted materials possessing uniform core-shell structure, and well preserved structural stability. Additionally, they can be collected readily by using an external magnetic field. The prepared material has considerable potential applications in various fields including catalysis, drug delivery, and water treatment.
کلیدواژه ها:
نویسندگان
Zeinab Kheshti
Department of Chemical Engineering, School of Chemical and Petroleum Engineering, Shiraz University, Shiraz, I.R. IRAN
Shadi Hassanajili
Department of Chemical Engineering, School of Chemical and Petroleum Engineering, Shiraz University, Shiraz, I.R. IRAN
Zahra Shahrashoob
Institute for Applied Surfactant Research and School of Chemical, Biological & Materials Engineering, University of Oklahoma, Norman, Oklahoma ۷۳۰۱۹, UNITED STATES
مراجع و منابع این مقاله:
لیست زیر مراجع و منابع استفاده شده در این مقاله را نمایش می دهد. این مراجع به صورت کاملا ماشینی و بر اساس هوش مصنوعی استخراج شده اند و لذا ممکن است دارای اشکالاتی باشند که به مرور زمان دقت استخراج این محتوا افزایش می یابد. مراجعی که مقالات مربوط به آنها در سیویلیکا نمایه شده و پیدا شده اند، به خود مقاله لینک شده اند :