Microwave-assisted synthesis of calcium carbonate (vaterite) of various morphologies in water-ethylene glycol mixed solvents.
A fast microwave-assisted method is reported for the synthesis of CaCO3 (vaterite) with various morphologies in the water/ethylene glycol (EG) system with surfactants. Our experiments show that microwave heating, reaction time, surfactant, and the water-EG mixed solvents play important roles in the morphology of vaterite. Vaterite with dagger-like, bicone-like, shuttle-like morphology and microspheres self-assembled from nanoparticles have been obtained by adjusting the experimental parameters. The products were characterized by X-ray powder diffraction, transmission electron microscopy, and scanning electron microscopy.
Qi
Rui-Juan
RJ
State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, PR China.
Zhu
Ying-Jie
YJ
D002119:Calcium Carbonate / Q000138:chemical synthesis* / Q000737:chemistry; D003460:Crystallization; D005026:Ethylene Glycols / Q000737:chemistry; D007202:Indicators and Reagents; D007536:Isomerism; D008855:Microscopy, Electron, Scanning; D046529:Microscopy, Electron, Transmission; D008872:Microwaves; D012997:Solvents; D014867:Water / Q000737:chemistry; D014961:X-Ray Diffraction
D005026:Ethylene Glycols; D007202:Indicators and Reagents; D012997:Solvents; D014867:Water; D002119:Calcium Carbonate