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

Mahuya Bandyopadhyay1*, Hermann Gies2, Wolfgang Grünert3, Maurits Van Den Berg4, Alexander Birkner5

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

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.

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