碳量子点诱导的多形碳酸钙粒子矿化及其形成机理(英文)

发布时间：2022-01-24 07:13

　　以在不同的热处理温度下合成的具有可变化学结构的碳点（CDs）为添加剂调控合成矿物碳酸钙。在室温条件下合成了花生状、哑铃状和球形碳酸钙颗粒。用扫描电镜（SEM）、傅里叶红外光谱仪（FTIR）、荧光光谱仪（PL）和X射线衍射仪（XRD）对样品进行了表征,详细研究了碳酸钙双球粒子的生长过程。CDs表面随处理温度可调变的极性官能团（主要为羧基、醛基、羟基等）被认为是导致合成碳酸钙粒子形貌变化的原因。对碳酸钙双球粒子的生长机理研究表明,Ostwald成熟和定向聚集机制是在CDs存在下最终双球粒子形貌形成的驱动力。 

【文章来源】：无机化学学报. 2020,36(08)北大核心SCICSCD

【文章页数】：10 页

【文章目录】：
0 Introduction
1 Experimental
    1.1 Materials
    1.2 Synthesis of CDs with different degree of carboxylation
    1.3 Preparation of CaCO3particles mediated by CDs
    1.4 Characterization
2 Result and discussion
    2.1 FTIR characterization and photolumines-cence behaviour of CDs
    2.2 Effect of heat treat temperature of CDs on morphology of CaCO3particles
    2.3 Effect of concentration of CDs-180 solution on morphology of CaCO3twin spheres
    2.4 Morphology evolution of CaCO3twin spheres with reaction time in the presence of CDs-180
    2.5 Live observation of CaCO3twin spheres with reaction time
    2.6 Growth mechanism of CaCO3twin spheres mediated by CDs-180
    2.7 Fluorescence property of CaCO3twin spheres According to the above analysis,CDs not only me?
3 Conclusions



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