高吸附性能胭脂虫红超支化磁性吸附剂的制备及其在环境水检测中的应用  

Preparation of Cochineal Hyperbranched Magnetic Adsorbent with High Adsorption Performance and Its Application in Environmental Water

作　　者：王悦 贺一晋 乔晨曦 郝旖[2] 张军杰[1] 吕东梅 高瑞霞[1] WANG Yue;HE Yi-Jin;QIAO Chen-Xi;HAO Yi;ZHANG Jun-Jie;LYU Dong-Mei;GAO Rui-Xia(School of Chemistry,Xi'an Jiaotong University,Xian 710049,China;School of Pharmacy,Xi'an Jiaotong University,Xi'an 710061,China)

机构地区：[1]西安交通大学化学学院,西安710049 [2]西安交通大学药学院,西安710061

出　　处：《分析化学》2023年第2期259-268,共10页Chinese Journal of Analytical Chemistry

基　　金：陕西省自然科学基金项目(Nos.2020JM-066,2020JQ-019);中央高校基础研究基金项目(Nos.xjh012020011,xjh012020001);西安交通大学创新领军人才项目资助。

摘　　要：采用缩水甘油醚为功能单体,胭脂虫红为目标物,裸磁球为载体,通过简单的开环聚合反应首次合成了具有高吸附性能的超支化聚缩水甘油醚磁性吸附剂(Fe_(3)O_(4)-HPG)用于高效吸附胭脂虫红。通过透射电镜(TEM)、红外光谱(FT-IR)、X射线衍射(XRD)、热重分析仪(TGA)以及振动样品磁强计(VSM)对材料的物理化学性能进行表征。结果表明,Fe_(3)O_(4)-HPG具有均一的粒径、良好的磁性和稳定的晶型结构。同时,对Fe_(3)O_(4)-HPG进行动力学吸附、热力学吸附和重复利用性实验考察。所制备的吸附剂具有高的吸附量(106.06 mg/g)、快的吸附速率(60 min)以及较好的重复利用性(8次重复循环使用后吸附效率为95.8%)。以合成的Fe_(3)O_(4)-HPG作为固相萃取吸附剂并与高效液相色谱联用,实现了对环境水中胭脂虫红的高效吸附、富集和检测,回收率>94.6%。本研究制备的新型胭脂虫红吸附剂具有较好的实际应用能力。The cochineal hyperbranched polyglycidyl ether magnetic adsorbents(Fe_(3)O_(4)-HPG)were synthesized for adsorption of cochineal with glycidyl ether as functional monomer,cochineal as target,and Fe_(3)O_(4)as carrier by a simple and ingenious synthesis method for the first time.The physical and chemical properties of the materials were characterized by transmission electron microscopy(TEM),Fourier transform infrared spectroscopy(FT-IR),X-ray diffraction(XRD),thermogravimetric analysis(TGA),and vibrating sample magnetometer(VSM).These results showed that Fe_(3)O_(4)-HPG had uniform particle size,good magnetism,and stable crystal structure.At the same time,the kinetic adsorption,thermodynamic adsorption,and reusability of Fe_(3)O_(4)-HPG were investigated.The prepared materials had high adsorption capacity(106.06 mg/g),fast adsorption rate(60 min)and good reusability(Adsorption efficiency of 95.8%after reusing for 8 times).Moreover,combined with high performance liquid chromatography,the Fe_(3)O_(4)-HPG as adsorbents were successfully used to specifically recognize and detect cochineal in environmental water with recoveries over 94.6%.

关 键 词：重复利用 磁性分离 超支化吸附剂 胭脂虫红 高吸附性能 

分 类 号：TQ424[化学工程] O657.72[理学—分析化学] X832[理学—化学]