Facile One‐Pot Fabrication of Hollow Porous Silica Nanoparticles. Issue 3 (10th December 2013)

• Record Type: Journal Article
• Authors: Abdelaal, Haitham Mohammad; Zawrah, Mahmoud Farag; Harbrecht, Bernd
• Is Part Of: Chemistry. Volume 20:Issue 3(2014)
• Page Start: 673
• Page End: 677
• Publication Date: 2013-12-10
• Subjects: Chemistry -- Periodicals; 540
• DOI: 10.1002/chem.201303656
• Languages: English
• ISSNs: 0947-6539

Abstract

<abstract abstract-type="main" xml:lang="en"> <title>Abstract</title> <p>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 <sc>D</sc>‐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.</p> </abstract>