Degradation of Artificial Sweetener Saccharin Sodium by Advanced Oxidation Technology

Abstract:

In this paper, the advanced oxidation processes of photocatalytic oxidation and Photo-Fenton oxidation were used in degradation of emerging pollutants saccharin sodium. The concentration of saccharin sodium was determined by HPLC. The results showed both photocatalytic oxidation and Photo-Fenton oxidation had an effective degradation of saccharin sodium. The degradation process was followed the first-order reaction. The best conditions of photocatalytic oxidation system: 500W mercury lamp, 0.04 g TiO₂, pH=7 and the best ratio of photo-Fenton was SAC:H₂O₂:Fe²⁺=5:60:1. The total organic carbon (TOC) of sample has significantly reduced to about 93% by the two systems.

• Periodical: Applied Mechanics and Materials (Volumes 448-453)
• Pages: 7-10
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.448-453.7
• Online since: October 2013
• Authors: Sheng Wen Chen*, Wen Chao Li, Zhi Guo Sun, Hong Yong Xie
• Keywords: Advanced Oxidation, Artificial Sweetener, Photocatalytic Oxidation, Photo-Fenton, Saccharin Sodium

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