Ceramics Department, National Research Centre, P.O. 12622, Dokki, Cairo (Egypt), Fax: (+20) 02-333-70931; Fachbereich Chemie und Wissenschaftliches Zentrum für Materialwissenschaften, Philipps-Universität, 35032 Marburg (Germany).
Chemistry. 2014 Jan 13;20(3):673-7. doi: 10.1002/chem.201303656. Epub 2013 Dec 10.
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.
一种制备中空二氧化硅纳米球的方法，即简便的一锅水热法，被描述。将水玻璃和 D-葡萄糖的水溶液加热至 180°C 并保持 24 小时，通过透射电子显微镜可以观察到，得到了一种由二氧化硅壳包裹着碳质核的纳米球复合材料。随后通过在空气中氧化去除碳质核，得到了中空的二氧化硅结构。通过改变两种共同溶解的化学物质的浓度，可以改变二氧化硅壳的厚度。通过 SEM、TEM、XRD、IR 光谱、热重分析（TGA）和吸附测量对中空二氧化硅颗粒进行了表征。
