Formation and stabilization of ZnO nanoparticles inside MCM-48 porous support via post-synthetic org
1Institute of Infrastructure, Technology, Research and Management, IITRAM, Maninagar, Ahmedabad, Gujarat, India
2Laboratory of Crystallography, Ruhr University Bochum, 44780 Bochum, Germany
3Laboratory of Industrial Chemistry, Ruhr University Bochum, 44780 Bochum, Germany
4Sachtleben Pigment GmbH, 47829, Krefeld, Germany
5Laboratory of Physical Chemistry I, Ruhr University Bochum, 44780 Bochum, Germany
Adv. Mater. Lett., 2015, 6 (11), pp 978-983
Publication Date (Web): Oct 26, 2015
Copyright © IAAM-VBRI Press
The interpenetrating 3-dimensional channel system of silica MCM-48 has been selected for the deposition of ZnO nanoparticles. The post-synthetic organometallic route was employed to load the mesoporous silica with ZnO-precursor molecule. Calcination of the composite transformed the organometallic sorbate to the corresponding metal oxide. X-ray powder diffraction, N2-Adsorption and TEM measurement have supported the efficient loading and growth of ZnO particles in the channels of mesoporous silica matrix. EXAFS analysis (ZnK-edges) also complemented the metal uptake. Presence of nano-dispersed and nanosized ZnO particles confined by the mesoporous pore system was established by TEM and EXAFS analysis.
Mesoporous, nanoparticles, TEM, EXAFS.