Oxidation of artificial sweetener sucralose by advanced oxidation processes: a review
2014
Sharma, Virender K. | Oturan, Mehmet | Kim, Hyunook
Sucralose, a chlorinated carbohydrate, has shown its increased use as an artificial sweetener and persistently exists in wastewater treatment plant effluents and aquatic environment. This paper aims to review possible degradation of sucralose and related carbohydrates by biological, electrochemical, chemical, and advanced oxidation processes. Biodegradation of sucralose in waterworks did not occur significantly. Electrochemical oxidation of carbohydrates may be applied to seek degradation of sucralose. The kinetics of the oxidation of sucralose and the related carbohydrates by different oxidative species is compared. Free chlorine, ozone, and ferrate did not show any potential to degrade sucralose in water. Advanced oxidation processes, generating highly strong oxidizing agent hydroxyl radicals (•OH), have demonstrated effectiveness in transforming sucralose in water. The mechanism of oxidation of sucralose by•OH is briefly discussed.
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