alexa Facile one-pot fabrication of hollow porous silica nanoparticles.
Chemical Engineering

Chemical Engineering

Journal of Advanced Chemical Engineering

Author(s): Abdelaal HM, Zawrah MF, Harbrecht B

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Abstract A method for the fabrication of hollow silica nanospheres, a facile one-pot hydrothermal route, is described. Heating of an aqueous solution of water glass and D-glucose to 180 °C for 24 h affords-as indicated by transmission electron microscopy-a nanospherical composite consisting of a silica shell sheathing a carbonaceous core. Subsequent removal of the carbonaceous interior through oxidation in air produces hollow silica structures. Variation of the concentration of the two jointly dissolved chemicals enables a variation of the thickness of the silica shell. The hollow silica particles were characterized by means of SEM, TEM, XRD, IR spectroscopy, thermogravimetrical analysis (TGA), and sorption measurements. Copyright © 2014 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. This article was published in Chemistry and referenced in Journal of Advanced Chemical Engineering

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