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在氮气保护下利用共沉淀方法成功地合成了零价铁无定形磷酸钙复合物(Fe~0/ACP复合物),并采用XRD、EDAX和FTIR对产物进行了表征。同时通过SEM和TEM分析可知所合成材料的粒径为300 nm左右。磁滞回线表明在磁场中可以将该复合物从非磁性材料中分离出来。氮气吸附脱附曲线表明所合成材料具有吸附性能。此外所合成Fe~0/ACP复合物被用来吸附Cd Te量子点,并采用二级动力学方程对吸附过程进行了分析。吸附产物采用XRD、FTIR、荧光和磁滞回线进行了表征,结果表明该吸附产物不仅具有磁性,而且具有很好的荧光性质。
The zero-valent amorphous calcium phosphate complex (Fe ~ 0 / ACP complex) was successfully synthesized by coprecipitation under the protection of nitrogen. The products were characterized by XRD, EDAX and FTIR. At the same time, SEM and TEM analysis showed that the particle size of the synthesized material was about 300 nm. Hysteresis loops indicate that the complex can be separated from the non-magnetic material in a magnetic field. Nitrogen adsorption and desorption curves show that the synthesized material has adsorption properties. In addition, the synthesized Fe ~ 0 / ACP complex was used to adsorb CdTe quantum dots, and the adsorption process was analyzed by the second-order kinetic equation. The adsorption products were characterized by XRD, FTIR, fluorescence and hysteresis loops. The results show that the adsorption products not only have magnetic properties, but also have good fluorescence properties.