کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7703220 | 1496862 | 2018 | 28 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Green synthesis of nanocrystalline faujasite zeolite
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موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی (عمومی)
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
In this work, the synthesis of 28 and 38â¯nm Na-Y zeolite nanocrystals is reported. The process was performed via green synthesis without any organic structure directing agents (SDAs), at low temperature and applying ultrasound-assisted aging. The zeolite nanoparticles obtained were characterized by X ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM) and N2 adsorption - desorption isotherm at 77â¯K. A simple, fast, efficient and environmentally friendly procedure to synthetize nanocrystalline FAU zeolite is described in the present study. The sonochemical pretreatment was found to directly affect the Na-Y zeolite properties. The final product obtained via ultrasound pretreatment shows high phase purity and crystallinity degree with crystal size smaller than 38â¯nm and elevated surface area (SBETâ¯â¼â¯950â¯m2â¯gâ1). The hierarchical micro- and mesoporous FAU zeolites exhibit a pore volume of â¼0.4â¯cm3â¯gâ1.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Ultrasonics Sonochemistry - Volume 42, April 2018, Pages 303-309
Journal: Ultrasonics Sonochemistry - Volume 42, April 2018, Pages 303-309
نویسندگان
Deborath Reinoso, MarÃa Adrover, Marisa Pedernera,