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Design of a new iron catalyst by mechanochemistry using rice husk as a green silica source
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1  University of Cordoba (Spain)

Published: 30 August 2018 by MDPI in 1st International Online Conference on Nanomaterials session Materials

Biomass has become an alternative to replace petroleum derived materials. Several methodologies for its valorization have been investigated to obtain high value products in a more sustainable way. Rice husk (RH) is an agricultural waste that contains up to 20 wt% of silica. Microwave assisted extraction was employed to remove metal ions from rice husk to obtain a highly pure mesoporous silica. Biogenic silica (RH-Silica) was employed as a support to design a new iron oxide catalyst (Fe/RH-Silica) by an efficient mechanochemical process. Synthesized materials were characterized by different techniques including N2 physisorption, XRD, TEM, SEM and DRIFT. Materials presented excellent properties and a high activity in organic reactions. Fe/RH-Silica catalyst was tested in the selective oxidation of styrene and the alkylation of toluene under microwave irradiation. High conversion and selectivity were achieved for the desire products.

Keywords: Rice Husk ; Silica; Mechanochemistry; Iron oxide; Oxidation; Alkylation
Comments on this paper
Omari Leroy
Conferences like these can help me to understand a thing or two on and it's all about this that I'm learnig so much these days. Thank you so mcuh to evreyone here.

Elina Vanness
It's great method
It's great method bringing high value of economy for us. It's so great abcya We should focus on the research result.