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CDs-Induced Polymorphous CaCO3 Mineralization and Formation Mechanism
Author NameAffiliationE-mail
ZHANG Da-Qin School of Chemistry and Chemical Engineering, Anhui University of technology, Maanshan, Anhui 243002, China  
JIA Zhi-Gang School of Chemistry and Chemical Engineering, Anhui University of technology, Maanshan, Anhui 243002, China zjchemyue@126.com 
LUO Guang-Cheng School of Chemistry and Chemical Engineering, Anhui University of technology, Maanshan, Anhui 243002, China  
WANG Hong-Zhou School of Chemistry and Chemical Engineering, Anhui University of technology, Maanshan, Anhui 243002, China  
LI Chao-Yong School of Chemistry and Chemical Engineering, Anhui University of technology, Maanshan, Anhui 243002, China  
WU Lin School of Chemistry and Chemical Engineering, Anhui University of technology, Maanshan, Anhui 243002, China  
CHEN Qi-Hou School of Chemistry and Chemical Engineering, Anhui University of technology, Maanshan, Anhui 243002, China  
Abstract: Carbon dots (CDs) with various chemical structures can be obtained under the condition of different heat treat temperatures. The morphology and phase of CaCO3 has been successfully controlled by the as-prepared CDs. Peanut-like, dumbbell-like and sphere-like particles were prepared in the presence of CDs. The CDs with changeable chemical structures, such as carboxyl group, aldehyde group, hydroxyl group, were deemed to be responsible for the variation in morphology. The as-obtained samples were characterized by scanning electron microscope (SEM), Fourier transform infrared spectrometer (FTIR), photoluminescence (PL) and X-ray diffraction (XRD). The growth mechanism of CaCO3 twin sphere particles was investigated in detail. Ostwald ripening and oriented aggregation mechanisms were proposed to be the drive power of the final morphology formation in the presence of CDs.
Keywords: material science  crystal growth  carbon dot  synthesis method
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ZHANG Da-Qin,JIA Zhi-Gang,LUO Guang-Cheng,WANG Hong-Zhou,LI Chao-Yong,WU Lin,CHEN Qi-Hou.CDs-Induced Polymorphous CaCO3 Mineralization and Formation Mechanism[J].Chinese Journal of Inorganic Chemistry,2020,36(8):1557-1566.
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Chinese Journal of Inorganic Chemistry