期刊论文

中文

食品与机械

1003-5788

2015

31

2

93-97

10.13652/j.issn.1003-5788.2015.02.019

2012BAD29B05:国家科技支撑计划 2012BAC01B07:国家科技支撑计划 201310128:质检公益性行业科研专项 201210036:质检公益性行业科研专项 201210035:质检公益性行业科研专项

本校为第一机构

采用共沉淀法制备出磁性Fe_3O_4纳米粒子,利用凝胶溶胶法进行表面包覆SiO_2得到Fe_3O_4 -SiO_2纳米粒子,并且以此作为磁核、双酚A作为模板分子、α-甲基丙烯酸作为功能单体、二乙烯基苯为交联剂、偶氮二异丁腈为引发剂乳液聚合制备出磁性双酚A分子印迹聚合物,通过红外衍射光谱(FT-IR)、透射电镜(TEM)以及振动样品磁强计(VSM)对聚合物的表面形貌、结构、磁性质等进行表征。结果表明:聚合物粒径分布均匀,在15 nm左右,磁响应性好,吸附动力学试验表明印记聚合物对双酚A的吸附性能大于非印记聚合物,且聚合物对双酚A具有较高的选择吸附性,Scatchard 方程分析得出MIPS对BPA表观最大吸附量为126. 44 μm...

Fe3O4magnetic nanoparticles were prepared by coprecipitation method and coated with Si O2 via a sol-gel process,then a magnetic molecularly imprinted polymers（Fe3O4—MIPS） of bisphenol A were prepared by emulsion polymerization using BPA as template,α-methacrylicas as functional monomer,divinylbenzene as cross-linker,azobisobutyronitrile as initior.The Fe3O4—MIPS were characterized by Fourier transform infrared spectroscopy（FT—IR）,Transmission electron microscopy（TEM）and Sample vibrating magnetometry（VSM） in order to elucidate the mo...