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Nanocrystalline sodalite: Preparation and application to epoxidation of 2-cyclohexen-1-one with hydrogen peroxide

Paper ID Volume ID Publish Year Pages File Format Full-Text
41039 45875 2012 6 PDF Available
Title
Nanocrystalline sodalite: Preparation and application to epoxidation of 2-cyclohexen-1-one with hydrogen peroxide
Abstract

In this study, we have synthesized nanocrystalline sodalite and investigated its activity for the epoxidation of α,β-unsaturated ketone with hydrogen peroxide. Nanocrystalline sodalite was prepared by hydrothermal synthesis using sodium metasilicate (Na2SiO3·9H2O), sodium aluminate (NaAlO2), and sodium chloride at 423 K. The obtained samples were characterized by X-ray diffraction, the Brunauer–Emmet–Teller (BET) method using nitrogen adsorption isotherms, scanning electron microscopy (SEM), and energy dispersive X-ray analysis. The maximum BET surface area of the nanocrystalline sodalite prepared in this study was 73 m2 g−1, and the average crystallite diameter of the sample was determined to be 47 nm by SEM. Nanocrystalline sodalite was found to promote the epoxidation of 2-cyclohexen-1-one with hydrogen peroxide. Epoxidation was observed to proceed mainly in the liquid phase and not on the surface of the nanocrystalline sodalite, and nanocrystalline sodalite was found to play a role in the pH adjustment of the liquid phase, which was required for the reaction to proceed. Further, nanocrystalline sodalite could be easily recovered by filtration after the epoxidation of 2-cyclohexen-1-one and used repeatedly for the reaction.

Graphical abstractFigure optionsDownload full-size imageDownload high-quality image (201 K)Download as PowerPoint slideHighlights► Nanocrystalline sodalite with an average diameter of 48 nm was synthesized. ► The nanocrystalline sodalite promoted the epoxidation of 2-cyclohexen-1-one with H2O2. ► The nanocrystalline sodalite was recovered by filtration after reaction and reused.

Keywords
Sodalite; Nanocrystalline solid; Epoxidation; Electron deficient alkene; Hydrogen peroxide
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Nanocrystalline sodalite: Preparation and application to epoxidation of 2-cyclohexen-1-one with hydrogen peroxide
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Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis A: General - Volumes 419–420, 29 March 2012, Pages 164–169
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us