کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
597566 | 1454070 | 2007 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Silylated calcium phosphates and their new behavior for copper retention from aqueous solution
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
شیمی کلوئیدی و سطحی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Anhydrous calcium phosphate (CaP) was modified by surface silylation using three organosilanes (H3CO)3SiR, where R corresponds to the organic moieties CH2CH2CH2NH2, CH2CH2CH2NHCH2CH2NH2 and CH2CH2CH2NHCH2CH2NHCH2CH2NH2, originating nanomaterials named CaPSil1, CaPSil2, and CaPSil3. The products were characterized by elemental analysis, infrared spectroscopy, X-ray diffraction, thermogravimetry and 31P and 13C NMR. The amounts of attached amino groups on surfaces were 0.32 ± 0.05, 0.54 ± 0.04, and 1.21 ± 0.04 mmol g−1 for CaPSilx (x = 1–3), respectively. Suspended silanized phosphates adsorbed copper cations from aqueous solution at liquid/solid interface.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Colloids and Surfaces A: Physicochemical and Engineering Aspects - Volume 301, Issues 1–3, 5 July 2007, Pages 376–381
Journal: Colloids and Surfaces A: Physicochemical and Engineering Aspects - Volume 301, Issues 1–3, 5 July 2007, Pages 376–381
نویسندگان
Oberto Grangeiro da Silva, Maria G. da Fonseca, Luiza N.H. Arakaki,