In:
Journal of Nano Research, Trans Tech Publications, Ltd., Vol. 54 ( 2018-8), p. 54-65
Abstract:
Surface β-cyclodextrin polymer coated Fe 3 O 4 magnetic nanoparticles (NPs) were prepared by anchoring pyromellitic dianhydride derivate-b-cyclodextrin polymer (b-CD-P) onto the surface of Fe 3 O 4 magnetic NPs, which is generated in situ through a co-precipitation method. The transmission electron microscopy (TEM) result indicates that Fe 3 O 4 @β-CD-P NPs have an effective average size of 15 ± 2 nm. The surface coated layer β-CD-P was confirmed by Fourier-Transformed Infrared Spectroscopy, and the amount of which was determined to be 138.2 mg g -1 by thermogravimetric analysis. To explore the potential application of such nanocomposites for organic pollutants adsorption, malachite green (MG), a typical cancer-causing water pollutant was evaluated by spectrophotometric method. It was finally learnt that, the adsorption rate of MG by Fe 3 O 4 @β-CD-P NPs follows pseudo-second-order kinetics with adsorption isotherm fitted by the Langmuir isotherm model well. The maximum adsorption capacity was measured to be 88.49 mg g -1 at 25 °C. Additionally, a good recyclability of the Fe 3 O 4 @β-CD-P was observed over four usage cycles, with slight decrease of adsorption capability.
Type of Medium:
Online Resource
ISSN:
1661-9897
DOI:
10.4028/www.scientific.net/JNanoR.54
DOI:
10.4028/www.scientific.net/JNanoR.54.54
Language:
Unknown
Publisher:
Trans Tech Publications, Ltd.
Publication Date:
2018
detail.hit.zdb_id:
2410713-X
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