Calcium carbonate with three-dimensional chrysanthemun flower-like structure was successfully prepared from calcium chloride and sodium carbonate ethanol/water mixed solution by a simple precipitation method,using trisodium citrate as crystal modifier.The experimental results show that the threedimensional structure of chrysanthemun flower-like calcium carbonate is built up with several symmetrical micrometer multi-layer petals arranged around the multi-layer pancake-liked center,and the micrometer center and petals are assemblied by a large number of nanometer spherical particles with size 10-20 nm.It is found that the amount of trisodium citrate,the ethanol volume content has an important influence on the formation of this morphology.A possible mechanism is proposed to explain the formation of three-dimensional chrysanthemun flower-like calcium carbonate according the results.Scanning electron microscopy (SEM),X-ray powder diffraction (XRD),flourier transform infrared spectroscopy (FT-IR),thermogravimety analysis (TG),transmission electron microscopy (TEM) equipped with energy-dispersive X-ray (EDX),and selected area electron diffraction (SAED) were used to characterize the crystals.
参考文献
| [1] | Li, Q;Dong, LJ;Deng, W;Zhu, QM;Liu, Y;Xiong, CX .Solvent-free Fluids Based on Rhombohedral Nanoparticles of Calcium Carbonate[J].Journal of the American Chemical Society,2009(26):9148-9149. |
| [2] | Su, YL;Yang, HR;Shi, WX;Guo, HX;Zhao, Y;Wang, DJ .Crystallization and morphological control of calcium carbonate by functionalized triblock copolymers[J].Colloids and Surfaces, A. Physicochemical and Engineering Aspects,2010(1/3):158-162. |
| [3] | Liu XH;Zhang LX;Wang YL;Guo CL;Wang EK .Biomimetic crystallization of unusual macroporous calcium carbonate spherules in the presence of phosphatidylglycerol vesicles[J].Crystal growth & design,2008(3):759-762. |
| [4] | 陈先勇,唐琴,胡卫兵,但悠梦,周贵云.孪生球状碳酸钙的直接混合沉淀法制备及表征[J].高等学校化学学报,2010(10):1940-1944. |
| [5] | Shen Q;Chen YK;Wei H;Zhao Y;Wang DJ;Xu DF .Suspension effect of poly(styrene-ran-methacrylic acid) latex particles on crystal growth of calcium carbonate[J].Crystal growth & design,2005(4):1387-1391. |
| [6] | Steven R.Dickinson;K.M.McGrath .Aqueous Precipitation of Calcium Carbonate Modified by Hydroxyl-Containing Compounds[J].Crystal growth & design,2004(6):1411-1418. |
| [7] | Westin KJ;Rasmuson AC .Nucleation of calcium carbonate in presence of citric acid, DTPA, EDTA and pyromellitic acid[J].Journal of Colloid and Interface Science,2005(2):370-379. |
| [8] | Yao, Y;Dong, WY;Zhu, SM;Yu, XH;Yan, DY .Novel Morphology of Calcium Carbonate Controlled by Poly(L-lysine)[J].Langmuir: The ACS Journal of Surfaces and Colloids,2009(22):13238-13243. |
| [9] | Norio Wada;Kiyoshi Kanamura;Takao Umegaki .Effects of Carboxylic Acids on the Crystallization of Calcium Carbonate[J].Journal of Colloid and Interface Science,2001(1):65-72. |
| [10] | Dickinson SR.;McGrath KM. .Switching between kinetic and thermodynamic control: calcium carbonate growth in the presence of a simple alcohol[J].Journal of Materials Chemistry: An Interdisciplinary Journal dealing with Synthesis, Structures, Properties and Applications of Materials, Particulary Those Associated with Advanced Technology,2003(4):928-933. |
| [11] | Yu XL.;Hou WB.;Zhang SJ.;Cheng ZX.;Sun Y. .INTERFACE KINETICS AND CRYSTAL GROWTH MECHANISM OF A NEW ORGANOMETALLIC COORDINATION COMPOUND - TRIALLYLTHIOUREA MERCURY BROMIDE[J].Journal of Crystal Growth,1997(3/4):428-433. |
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