摘要
采用水热法合成了水溶性儿茶素功能化的Fe_(3)O_(4)纳米粒子。通过傅立叶变换红外光谱、X射线光电子能谱、原子力显微镜、X射线衍射和磁性测试对制备的Fe_(3)O_(4)纳米复合材料进行了表征。结果表明,Fe_(3)O_(4)纳米粒子具有立方尖晶石结构,表面覆盖着儿茶素。儿茶素功能化Fe_(3)O_(4)纳米粒子具有很强的磁性,可以利用永磁体进行收集。所得的Fe_(3)O_(4)纳米粒子具有良好的稳定性,并可以在水中重新分散。在此基础上,实验了儿茶素功能化Fe_(3)O_(4)纳米颗粒吸附水中的重金属离子效果。原子吸收测定结果表明,儿茶素功能化Fe_(3)O_(4)纳米粒子对水中Cu^(2+)、Cd^(2+)和Pb^(2+)的去除率很高,有望应用于废水中重金属离子的处理。
Catechin-functionalized Fe_(3)O_(4)nanoparticles were synthesized via a hydrothermal approach.The obtained Fe_(3)O_(4)nanocomposites were characterized by fourier transform infrared spectroscopy(FT-IR),hysteresisloop,atomic force microscope(AFM),and X-ray diffraction(XRD).The results revealed that the Fe_(3)O_(4)nanoparticles had cubic spinel structure and capped by catechin outside.In addition,the catechin-functionalized Fe_(3)O_(4)nanoparticles had strong magnetic properties,and can be manipulated by apermanent magnet.The obtained Fe_(3)O_(4)nanoparticles were quite stable and can be re-dispersed in water.Furthermore,the catechin-functionalized Fe_(3)O_(4)nanoparticles can be utilized to adsorb the heavy metal ions in water.The primary results indicated that the catechin-functionalized Fe_(3)O_(4)nanoparticles had high removal rate for Cu^(2+),Cd^(2+)and Pb^(2+)in water.Taken together,the catechin-functionalized Fe_(3)O_(4)nanoparticles were expected to be applied in the removal of heavy metal ions in wastewater.
作者
史宇哲
孙聪聪
李静超
邓世贤
赵柏涵
刘志国
Shi Yuzhe;Sun Congcong;Li Jingchao;Deng Shixian;Zhao Baihan;Liu Zhiguo(College of Chemical Engineering and Resource Utilization,Northeast Forestry University,Harbin 150040;Key Laboratory of Forest Plant Ecology,ministry of Education,Northeast Forestry University,Harbin 150040)
出处
《化工新型材料》
CAS
CSCD
北大核心
2021年第6期271-275,共5页
New Chemical Materials
基金
中央高校基本科研业务费专项资金(2572018CT01)
黑龙江省自然科学基金(LH2019B001)。
作者简介
史宇哲(1995-),女,硕士研究生,研究方向为植物化学;通讯作者:刘志国,教授,E-mail:zhiguoliu@163.com。
