| 核壳结构型纳米CaCO3-SiO2.nH2O复合粒子的制备 |
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| 引用本文： | 刘润静,邹海魁,郭奋,陈建峰,赵永华,高立东. 核壳结构型纳米CaCO3-SiO2.nH2O复合粒子的制备[J]. 材料研究学报, 2001, 15(1): 61-64 |
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| 作者姓名： | 刘润静 邹海魁 郭奋 陈建峰 赵永华 高立东 |
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| 作者单位： | 北京化工大学 |
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| 基金项目： | 八六三计划新材料领域资助项目!863—715—009—0080 |
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| 摘 要： | 在搅拌槽式反应器中，以用超重力法合成的纳米 ＣａＣＯ３和 Ｎａ２ＳｉＯ３为原料，用溶胶－凝胶技术制备具有核壳结构的纳米 ＣａＣＯ３－ＳｉＯ２·ｎＨ２Ｏ复合粒子 用 ＸＰＳ、 ＴＥＭ、 ＸＲＤ等方法对粒子的化学组成、形貌、晶型等作了分析和表征
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| 关 键 词： | 复合粒子 纳米碳酸钙 溶胶-凝胶 核-壳结构 |
| 文章编号： | 1005-3093(2001)01-0061-04 |
| 修稿时间： | 2000-12-05 |
PREPARATION OF CORESHELL NANOSIZED CaCO3-SiO2@nH2O COMPOSITE PARTICLES |
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| LIU Runjing,ZOU Haikui,GUO Fen,CHEN Jianfeng,ZHAO Yonghua,GAO Lidong. PREPARATION OF CORESHELL NANOSIZED CaCO3-SiO2@nH2O COMPOSITE PARTICLES[J]. Chinese Journal of Materials Research, 2001, 15(1): 61-64 |
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| Authors: | LIU Runjing ZOU Haikui GUO Fen CHEN Jianfeng ZHAO Yonghua GAO Lidong |
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| Abstract: | Nanosized CaCO3-SiO2.nH2O core-shell particles were prepared by Sol-gel process of CaCO3 by using RPB and Na2SiO3 in agitated tank reactor. The measurement of XPS, TEM, XRD were used to characterize the chemical composition, morphology, size and superficial crystal structure of the particles. According to the difFerence of 2p orbital electron energy of Ca in XPS after being coated, it can be inferred that Si in coating layer combines to CaCO3 surface through chemical bond. The average composite particle size of was about 40nm. The crystal structure of the coating layer is in agreement with that of SiO2 .nH2O. |
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| Keywords: | composite particle nanosized carbonate calcium sol-gel core-shell |
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