以在不同的熱處理溫度下合成的具有可變化學(xué)結(jié)構(gòu)的碳點（CDs）為添加劑調(diào)控合成礦物碳酸鈣。在室溫條件下合成了花生狀、啞鈴狀和球形碳酸鈣顆粒。用掃描電鏡（SEM）、傅里葉紅外光譜儀（FTIR）、熒光光譜儀（PL）和X射線衍射儀（XRD）對樣品進(jìn)行了表征,詳細(xì)研究了碳酸鈣雙球粒子的生長過程。CDs表面隨處理溫度可調(diào)變的極性官能團(tuán)（主要為羧基、醛基、羥基等）被認(rèn)為是導(dǎo)致合成碳酸鈣粒子形貌變化的原因。對碳酸鈣雙球粒子的生長機(jī)理研究表明,Ostwald成熟和定向聚集機(jī)制是在CDs存在下最終雙球粒子形貌形成的驅(qū)動力。 

【文章來源】：無機(jī)化學(xué)學(xué)報. 2020,36(08)北大核心SCICSCD

【文章頁數(shù)】：10 頁

【文章目錄】：
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



本文編號：3606118