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Active potassium niobates and titanoniobates as catalysts for organic sulfide remediation

Paper ID Volume ID Publish Year Pages File Format Full-Text
49949 46774 2016 4 PDF Available
Title
Active potassium niobates and titanoniobates as catalysts for organic sulfide remediation
Abstract

•Potassium titano-niobates as active catalysts for organic sulfide remediation•KTixNb(1 − x)O3 activities are the largest among catalysts for this reaction reported.•Reaction parameters were evaluated using aqueous hydrogen peroxide as the oxidant.•Mild reaction conditions were used to obtain the largest catalytic activity.

Pure (KNbO3) and titanium-substituted (KTi0.1Nb0.9O3 and KTi0.2Nb0.8O3) potassium niobates with perovskite crystalline structures were prepared, characterized and tested as catalysts in the selective oxidation of 2-(methylthio)benzothiazole to its corresponding sulfoxide and sulfone. These catalysts, which have not previously been reported for organic sulfide remediation, are the most active catalysts among those discovered to date for this type of oxidation reaction. Hydrogen peroxide was employed as the oxidant, and the reaction parameters were tested in order to find milder reaction conditions.

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Keywords
Niobates; Perovskites; Titanium; Sulfide remediation; Hydrogen peroxide
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Active potassium niobates and titanoniobates as catalysts for organic sulfide remediation
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Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Communications - Volume 76, 10 February 2016, Pages 58–61
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
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