Add time:08/03/2019 Source:sciencedirect.com
The evaluation of different persulfate activation methods (UV, solar light, electron, Fe(II)) on the degradation of Sulfaclozine (cas 102-65-8) was investigated along with the effect of persulfate concentrations. UV/TiO2/K2S2O8 resulted in the highest degradation rate regardless persulfate concentrations. However, persulfate addition on the UV/TiO2 system was not as efficient as expected and the use of radical scavengers showed that pH played an important role in the distribution of dominant radicals. It was found that at pH 7, hydroxyl and sulfate radicals were involved in the degradation of sulfaclozine, whereas at pH 11 no contribution of sulfate radicals was observed.Following the formation of the six by-products of the first generation formed in UV/TiO2 system, we obtained the formation of two by-products out of six in the UV/K2S2O8 system and four in the UV/TiO2/K2S2O8 system but with different concentrations, confirming the hypothesis suggested about the intervention of O2− in the degradation mechanism of sulfaclozine.The second order rate constant of the reaction between sulfaclozine and SO4− radicals was determined by a competitive kinetics method and two values of 7.5 × 109 M−1 s−1 and 1.7 × 1010 M−1 s−1 were obtained depending on the references used, and found to be close to those obtained between sulfaclozine and OH radicals (7.2 × 109 M−1 s−1 and 5.9 × 109 M−1 s−1).
We also recommend Trading Suppliers and Manufacturers of Sulfaclozine (cas 102-65-8). Pls Click Website Link as below: cas 102-65-8 suppliers
About|Contact|Cas|Product Name|Molecular|Country|Encyclopedia
Message|New Cas|MSDS|Service|Advertisement|CAS DataBase|Article Data|Manufacturers | Chemical Catalog
©2008 LookChem.com,License: ICP
NO.:Zhejiang16009103
complaints:service@lookchem.com Desktop View