Simultaneous detection and removal of metal ions based on a chemosensor composed of a rhodamine derivative and cyclodextrin-modified magnetic nanoparticles
- 617 Downloads
A variety of chemosensors have been reported for detection of metal ions. However, the metal ions could not be separated and removed at the same time for the goal of water purification. This paper presents to detect and remove metal ions from aqueous solution simultaneously by a fluorescence chemosensor and functional magnetic nanoparticles. A novel probe adamantyl (AD)–maleic anhydride (MAH)–rhodamine B (RhB) was designed and synthesized from RhB, ethylene diamine, MAH, and AD. AD–MAH–RhB showed high selectivity and sensitivity to metal ions in aqueous solution. The sensing mechanism was explored by FTIR and mass spectra. The results suggested that AD–MAH–RhB could conjugate with metal ions and form the binding complexes with various stoichiometries of probe and metal ions. Moreover, β-cyclodextrin-modified magnetic nanoparticles (CD-MNP) were fabricated and used as host materials to form inclusion complex of CD-MNP and AD–MAH–RhB-metal ions. Then, the metal ions could be removed by an outer magnet, which were confirmed by fluorescent spectrum. The probe and CD-MNP had the great potential application for sewage treatment.
KeywordsInclusion Complex Attenuate Total Reflection Maleic Anhydride Adamantyl Carbon Nitride
This study was supported by the National Natural Science Foundation of China (No. 21004029), MOE & SAFEA for the 111 Project (B13025) and Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application (Soochow University, KJS1141).
- 3.Yean LP, Ahmad ZA (2012) Effect of low Fe3+ doping on characteristics, sonocatalytic activity and reusability of TiO2 nanotubes catalysts for removal of Rhodamine B from water. Hazardous Mater 235–236:326–335Google Scholar
- 27.Xie J, Yin YX, Jin GL, He MX, Diao GW (2011) Theoretical study on the inclusion complex of β-cyclodextrin and nitrobenzene. Chinese J Struc Chem 30:706–716Google Scholar
- 33.Qin W, Zou B, Zhang Y, Yi XH, Pan ZH (2013) UV–VIS, fluorescence and mass spectrometry investigation on the transition metal ion chelation of two bioisosteres of resveratrol. Asian J Chem 25:2185–2188Google Scholar