Abstract
Adamantane-modified salicylrhodamine B and β-cyclodextrin-modified Fe3O4@SiO2 were assemblied by host-guest interactions which induced novel inclusion complex magnetic nanoparticles (SFIC MNPs) colorimetric sensitive for Cu2+ being prepared. The MNPs exhibit a clear color change from colorless to pink selectively and sensitively with the addition of Cu2+ in the experiments of UV-visible spectra, and the detection limit measures up to 5.99×10-6 M in solutions of CH3CN-H2O =1:10. The SFIC magnetic nanoparticles are superparamagnetic according to magnetic measurements and can be separated and collected easily with a commercial magnet in nine seconds. In addition, the microspheres have also showed good ability of separating for other ions from aqueous solutions due to a large number of hydroxyl groups on the surface.
| Original language | English |
|---|---|
| Pages (from-to) | 33-40 |
| Number of pages | 8 |
| Journal | Talanta |
| Volume | 141 |
| DOIs | |
| State | Published - 2015 |
| Externally published | Yes |
Keywords
- Chemosensor
- Host-guest interaction
- Magnetic microspheres
- Rhodamine B
- β-Cyclodextrin
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