title: Oxidation of artificial sweetener sucralose by advanced oxidation processes: a review.
abstract: 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.
authors.affiliation: Department of Environmental and Occupational Health, School of Public Health, Texas A&M University, 1266 TAMU, College Station, TX, 77843, USA, vsharma@srph.tamhsc.edu.
authors.forename: Virender K
authors.initials: VK
authors.lastname: Sharma
authors.forename: Mehmet
authors.initials: M
authors.lastname: Oturan
authors.forename: Hyunook
authors.initials: H
authors.lastname: Kim
mesh_terms: D002713:Chlorine / Q000737:chemistry; D004563:Electrochemistry; D017665:Hydroxyl Radical / Q000737:chemistry; D007501:Iron / Q000737:chemistry; D016877:Oxidants / Q000737:chemistry; D010084:Oxidation-Reduction; D010126:Ozone / Q000737:chemistry; D013395:Sucrose / Q000031:analogs & derivatives* / Q000737:chemistry; D013549:Sweetening Agents / Q000737:chemistry*; D014874:Water Pollutants, Chemical / Q000737:chemistry*; D018508:Water Purification / Q000379:methods*
chemical_list: D016877:Oxidants; D013549:Sweetening Agents; D014874:Water Pollutants, Chemical; C017311:ferrate ion; D017665:Hydroxyl Radical; D002713:Chlorine; D013395:Sucrose; D010126:Ozone; C026285:trichlorosucrose; D007501:Iron