节点文献
官能化磁性纳米颗粒对复杂体系中硒的吸附
Functional magnetic nanoparticles for selenium removal in complex system
【Author】 Sihong Wang;Jishou Piao;Jingdong Zhang;Donghao Li;Analysis and Inspection Center,Yanbian University;Key Laboratory of Natural Resource of the Changbai Mountain and Functional Molecules,Ministry of education, Yanbian University;
【机构】 延边大学分析测试中心; 延边大学长白山生物资源与功能分子教育部重点实验室;
【摘要】 在复杂体系例如植物提取物中等领域,磁性纳米颗粒有着独特的应用价值。磁性纳米颗粒有难进行表征与重现实验等缺陷,通过水热法,控制合成Fe3O4磁性纳米颗粒前体的比例,使用草酰氯作为缩合剂在磁性纳米颗粒表面修饰二甲基吡啶胺[1]合成官能化磁性纳米颗粒,官能化磁性纳米颗粒的表面的正zeta电位可以通过静电吸附复杂体系表面带有负电荷的硒,并使用电感耦合等离子体质谱仪来评估吸附硒的能力。表面修饰二甲基吡啶胺的磁性纳米颗粒,能有效的吸附复杂体系中的硒[2]。
【Abstract】 Functional magnetic nanoparticles with a specific surface area were successfully synthesized.The as-synthesized 2-pyridinemethanamine-coated Fe3O4 nanoparticles have mean diameter of 50 nm. The used capped agent is 2-pyridinemethanamine, which serves as a functionalized molecule to make sure the dispersibility and stability of the 2-pyridinemethanamine-coated Fe3O4 nanoparticles in aqueous solution.The 2-pyridinemethanamine-coated Fe3O4 nanoparticles exhibit superparamagnetic properties at room temperature and saturation magnetization approaches 50 emu/g.The 2-pyridinemethanamine-coated Fe3O4 nanoparticles were evaluated as an absorbent to remove selenium from complex system. Using inductively coupled plasma mass spectrometer, assess the adsorption ability of selenium with a maximum adsorption capacity of 56 mg/g for selenium.
- 【会议录名称】 中国化学会第29届学术年会摘要集——第04分会:纳米生物传感新方法
- 【会议名称】中国化学会第29届学术年会
- 【会议时间】2014-08-04
- 【会议地点】中国北京
- 【分类号】O647.2
- 【主办单位】中国化学会