Synthesis of stable ACC using mesoporous silica gel as a support
1 State Key Laboratory of Crystal Materials, Shandong University, Shanda Nanlu Rd No.27, Jinan, Shandong Province 250100, China
2 Shandong Institute of Supervision and Inspection on Product Quality, Jinan 250100, China
Nanoscale Research Letters 2014, 9:450 doi:10.1186/1556-276X-9-450Published: 29 August 2014
Stable amorphous calcium carbonate supported by mesoporous silica gel was successfully synthesized. The silica gel support is prepared through the hydrolytic polycondensation of ethyl silicate under suitable conditions. Laser scanning confocal microscopy (LSCM) observations reveal that the morphology of the products is branched with cruciform-like and flower-like structure. Raman spectroscopic analysis and scanning electron microscopy (SEM) observation of the products confirm the combination of stable amorphous calcium carbonate (ACC) nanoparticles and mesoporous silica gel. A possible growth mechanism for the branched structure has been proposed. Results indicate potential application of this work to ACC storage, crystal engineering, biomimetic synthesis, etc.