Vol.:(0123456789) Reaction Kinetics, Mechanisms and Catalysis https://doi.org/10.1007/s11144-019-01646-1 1 3 Immobilizaion of Preyssler type heteropoly acids on siliceous mesporous supports and their catalytic activities in the dehydration of ethanol Mahuya Bandyopadhyay 1  · Divya Jadav 1  · Nao Tsunoji 2  · Tsuneji Sano 2  · Masahiro Sadakane 2 Received: 17 May 2019 / Accepted: 31 July 2019 © Akadémiai Kiadó, Budapest, Hungary 2019 Abstract Porous materials with diferent pore structure were synthesized and modifed with Preyssler-type heteropolyacid material by post-synthetic wet-impregnation method. The functionalized materials were thoroughly characterized by diferent physic- chemical techniques. As reveled by characterization, the structures were well pre- served after the modifcation. All the materials were catalytically active as proved by the catalytic results in dehydration of alcohol to ethylene. On comparison with Prey- ssler (without any support), which did not show activity at all, mesoporous matrices provided active support for hosting heteropolyacids which was found to be an excel- lent catalyst for this reaction. Keywords Porous materials · Polyoxometalates · Ethanol · Ethylene · Preyssler modifed mesoporous materials Introduction Functionalized hybrid materials by the combination of various inorganic moieties have created remarkable attention for their versatile applications like material sci- ences, catalysis, medicine and crystal engineering [1–4]. Polyoxometalates (POMs), a class of inorganic multidentate oxygen-donor, having variety of structures, Electronic supplementary material The online version of this article (https://doi.org/10.1007/s1114 4-019-01646-1) contains supplementary material, which is available to authorized users. * Mahuya Bandyopadhyay mahuyabandyopadhyay@iitram.ac.in 1 Institute of Infrastructure, Technology, Research and Management, IITRAM, Maninagar, Ahmedabad, Gujarat, India 2 Department of Applied Chemistry, Graduate School of Engineering, Hiroshima University, Higashi-Hirosima 739-8527, Japan