کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1651850 1007632 2008 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Control the polymorphism and morphology of calcium carbonate precipitation from a calcium acetate and urea solution
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد فناوری نانو (نانو تکنولوژی)
پیش نمایش صفحه اول مقاله
Control the polymorphism and morphology of calcium carbonate precipitation from a calcium acetate and urea solution
چکیده انگلیسی

Two metastable calcium carbonate polymorphs, rod-like aragonite and spherical vaterite are selectively formed in this study. Aragonite rods were synthesized from a calcium acetate (Ca(AC)2) and urea (CO(NH2)2) solution under a given condition. In contrast, the addition of polyacrylamide (PAM) and oleic acid results in the formation of spherical vaterite. The morphology, size and crystal structure were characterized by means of Fourier transform infrared spectroscopy (FT-IR), scanning electron microscope (SEM), and X-ray diffraction (XRD). The results show that PAM and oleic acid can be used as additives to select the polymorph from aragonite and vaterite. The contact angle of the modified products reached 112.49°. We have succeeded in surface modification of particles in situ at the same time.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Letters - Volume 62, Issue 16, 15 June 2008, Pages 2377–2380
نویسندگان
,