零价铁/无定形磷酸钙复合物的合成及其对CdTe量子点吸附性能（英文）  

Synthesis and Adsorption Properties for CdTe Quantum Dots of Zero-Valent Iron/Amorphous Calcium Phosphate Composites

作　　者：金丽[1] 那丽华[2] 刘芳同 龚丽莹 娄大伟[1] 张建坡[1] 

机构地区：[1]吉林化工学院化学与制药工程学院,吉林132022 [2]中国科学院长春应用化学研究所合成橡胶重点实验室,长春130022

出　　处：《无机化学学报》2016年第11期2025-2033,共9页Chinese Journal of Inorganic Chemistry

基　　金：国家自然科学基金(No.21405058,21403087)资助项目

摘　　要：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。A zero-valent iron amorphous calcium phosphate composite （Fe0/ACP composites） was prepared via coprecipitation method under a nitrogen atmosphere. Powder X-ray diffraction patterns, EDAX and FTIR all illustrated the formation of the Fe0/ACP composites. Meanwhile SEM and TEM analysis showed the formation of particles with size of 300 nm. Hysteresis loops indicated that Fe0/ACP composites could be separated from the nonmagnetic materials in a magnetic field. Nitrogen adsorption-desorption isotherm showed the adsorption capacity for the Fe0/ACP composites. Additionally, as-prepared product was used to absorb CdTe quantum dots, whose absorption process was analyzed by the pseudo-second-order rate equation. The XRD, FTIR, fluorescence spectrum and hysteresis loops were also used to characterize the absorption product, which indicated that these adsorption products not only maintained the magnetic properties, but also exhibited good fluorescence emission ability.

关 键 词：无定形磷酸钙 零价铁 沉淀法 CDTE量子点 

分 类 号：O611.4[理学—无机化学]