A core–shell Fe3O4 nanoparticle–CdTe quantum dot–molecularly imprinted polymer composite for recognition and separation of 4-nonylphenol

Analytical Methods

Xin Li³  Yuan Wang¹  Chao Su⁴  Shuang Han² 

[1] Qiqihar Environmental Monitoring Central Station,Qiqihar 161005,ChinaQiqihar Environmental Monitoring Central Station,Qiqihar 161005,ChinaQiqihar Environmental Monitoring Central Station,Qiqihar 161005,China;Department of Chemistry, Harbin Institute of Technology,Harbin 150090,ChinaCollege of Chemistry and Chemical Engineering, Qiqihar University,Qiqihar 161006,ChinaDepartment of Chemistry, Harbin Institute of Technology,Harbin 150090,ChinaDepartment of Chemistry, Harbin Institute of Technology,Harbin 150090,ChinaCollege of Chemistry and Chemical Engineering, Qiqihar University,Qiqihar 161006,ChinaCollege of Chemistry and Chemical Engineering, Qiqihar University,Qiqihar 161006,ChinaDepartment of Chemistry, Harbin Institute of Technology,Harbin 150090,ChinaCollege of Chemistry and Chemical Engineering, Qiqihar University,Qiqihar 161006,China;Department of Chemistry, Harbin Institute of Technology,Harbin 150090,ChinaState Key Lab of Urban Water Resource and Environment, Harbin Institute of Technology,Harbin 150090,ChinaDepartment of Chemistry, Harbin Institute of Technology,Harbin 150090,ChinaDepartment of Chemistry, Harbin Institute of Technology,Harbin 150090,ChinaState Key Lab of Urban Water Resource and Environment, Harbin Institute of Technology,Harbin 150090,ChinaState Key Lab of Urban Water Resource and Environment, Harbin Institute of Technology,Harbin 150090,ChinaDepartment of Chemistry, Harbin Institute of Technology,Harbin 150090,ChinaState Key Lab of Urban Water Resource and Environment, Harbin Institute of Technology,Harbin 150090,China;College of Chemistry and Chemical Engineering, Qiqihar University,Qiqihar 161006,ChinaCollege of Chemistry and Chemical Engineering, Qiqihar University,Qiqihar 161006,ChinaCollege of Chemistry and Chemical Engineering, Qiqihar University,Qiqihar 161006,China

DOI  :  10.1039/C3AY41924J

学科分类：分析化学

来源: Royal Society of Chemistry

【 摘 要 】

In this work, magnetic fluorescence molecularly imprinted microspheres were prepared for recognition and separation of 4-nonylphenol. The prepared composite was evaluated and characterized in detail by scanning electron microscopy, transmission electron microscopy, energy dispersive X-ray spectroscopy, fluorescence spectroscopy, fluorescence microscopy, vibrating sample magnetometry, and X-ray diffraction analyses. The results showed that the composite exhibited a uniform spherical shape and a core–shell structure. Moreover, this hybrid had a saturation magnetization value of 4.79 emu g−1, which provided an efficient way to separate toxic pollutants from extreme environments. And, the hybrid had the recognition ability for 4-nonylphenol by the changes of fluorescence signals, owning to the intrinsic fluorescent properties. Furthermore, the imprinting factor (IF) reached 2.37, which proved that many specific recognition sites with respect to the template were generated on the surface of MIPs and outstanding binding affinity and recognition selectivity towards 4-nonylphenol over competitive phenolic compounds.

【 授权许可】

Unknown