Controllable Synthesis of CaCO_3 Micro/Nanocrystals with Different Morphologies in Microemulsion  

作　　者：YU Dong CHU Ying DONG Li-hong ZHUO Yu-jiang 

机构地区：[1]Department of Chemistry, Northeast Normal University, Changchun 130024, P. R. China [2]Elementary Normal College, Dalian University, Dalian 116300, P. R. China

出　　处：《Chemical Research in Chinese Universities》2010年第5期678-682,共5页高等学校化学研究（英文版）

基　　金：Supported by the National Natural Science Foundation of China(No.20573017);the Natural Science Young Foundation of Northeast Normal University, China(No.20080303);the Analysis and Testing Foundation of Northeast Normal University,China

摘　　要：Lens-like vaterite CaCO3 microrings composed of CaCO3 nanoparticles were synthesized via a microemulsion-mediated route at room temperature with ethanol and n-hexanol as co-surfactant. This process did not demand any additional energy such as heating or continuous agitation. It was the first time to use ethanol as co-surfactant in the synthesis of micro or nanomaterials. And the ethanol was believed to play an important role in the aggregation fashion of CaCO3 nanoparticles. Moreover, shuttle-shaped nanorods, hexagonal nanoplates, and rice-like nanoparticles were also fabricated by modulating the growth parameters. Additionally, the introduce of ethanol into microemulsions as co-surfactant may be generalized as a novel green route to control the structure of other functional materials.Lens-like vaterite CaCO3 microrings composed of CaCO3 nanoparticles were synthesized via a microemulsion-mediated route at room temperature with ethanol and n-hexanol as co-surfactant. This process did not demand any additional energy such as heating or continuous agitation. It was the first time to use ethanol as co-surfactant in the synthesis of micro or nanomaterials. And the ethanol was believed to play an important role in the aggregation fashion of CaCO3 nanoparticles. Moreover, shuttle-shaped nanorods, hexagonal nanoplates, and rice-like nanoparticles were also fabricated by modulating the growth parameters. Additionally, the introduce of ethanol into microemulsions as co-surfactant may be generalized as a novel green route to control the structure of other functional materials.

关 键 词：CACO3 MICRORING COSURFACTANT 

分 类 号：TB383[一般工业技术—材料科学与工程] TQ132.32[化学工程—无机化工]