Formation And Stabilization Of ZnO Nanoparticles Inside MCM-48 Porous Support Via Post-synthetic Organometallic Route

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

DOI: 10.5185/amlett.2015.5963

Publication Date (Web): Oct 26, 2015

Copyright © IAAM-VBRI Press

E-mail: mahuyabandyopadhyay@iitram.ac.in

Abstract

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.

Keywords

Mesoporous, nanoparticles, TEM, EXAFS.