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Journal of Sol-Gel Science and Technology
Erschienen in: Journal of Sol-Gel Science and Technology 2/2016

01.02.2016 | Original Paper

Sol–gel synthesis of nanoparticles of gamma alumina and their application in defluoridation of water

verfasst von: I. B. Singh, Akanksha Gupta, Swati Dubey, M. Shafeeq, P. Banerjee, A. S. K. Sinha

Erschienen in: Journal of Sol-Gel Science and Technology | Ausgabe 2/2016

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Abstract

Water solvent-based sol–gel process was employed in the synthesis of nanoparticles of gamma alumina (NPGA) which were used for the removal of fluoride from water of neutral pH. Different techniques like thermogravimetric analysis, Fourier transform infrared spectroscopy, X-ray diffraction, and field emission scanning electron microscopy were employed for the characterization of the synthesized particles. Batch adsorption studies were performed for the optimization of contact time and adsorbent doses to obtain maximum fluoride removal and understanding of the adsorption kinetics and mechanism. The maximum adsorption capacity of NPGA for fluoride removal was estimated to be nearly 14 mg/g at room temperature (30 °C) which is better than fluoride removal reported by earlier using of commercial-grade NPGA. Adsorption kinetics measurement indicated that Langmuir equilibrium model is found to be more suitable for describing the fluoride adsorption mechanism.

Graphical Abstract

Vorheriger Artikel Nanostructured sodium–zeolite imidazolate framework (ZIF-8) doped with potassium by sol–gel processing for biodiesel production from soybean oil
Nächster Artikel Sol–gel synthesis of 0.94(Bi0.5Na0.5)TiO3–0.06BaTiO3 lead-free piezoelectric films: effect of pyrolysis temperature on phase evolution and electrical properties

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Metadaten
Titel
Sol–gel synthesis of nanoparticles of gamma alumina and their application in defluoridation of water
verfasst von
I. B. Singh
Akanksha Gupta
Swati Dubey
M. Shafeeq
P. Banerjee
A. S. K. Sinha
Publikationsdatum
01.02.2016
Verlag
Springer US
Erschienen in
Journal of Sol-Gel Science and Technology / Ausgabe 2/2016
Print ISSN: 0928-0707
Elektronische ISSN: 1573-4846
DOI
https://doi.org/10.1007/s10971-015-3869-z

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