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CDs-Induced Polymorphous CaCO3 Mineralization and Formation Mechanism |
Author Name | Affiliation | E-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 | |
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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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