电解离子水中羟自由基的产生规律

Forming rules of hydroxyl radicals produced in electrolyzed water

摘要: 对不同电解离子水以及次氯酸钠溶液产生羟自由基能力进行了研究,结果表明:当有效氯浓度为17mg/L,p H变化不会对电解离子水的产生羟自由基能力有显著影响;当有效氯浓度为60mg/L时,产生羟自由基能力随着p H升高而升高;微酸电解离子水在0~24h范围内的羟自由基变化不明显,强酸电解离子水在17℃和4℃的贮藏温度下,产生羟自由基的能力均在贮藏时间为5h时达到最大;在不同p H和有效氯浓度范围内,电解离子水产生羟自由基能力均要比次氯酸钠溶液强。

Abstract: The ability to generate hydroxyl radicals of the different electrolyzed water and the sodium hypochlorite solution in the process of storage was investigated.The results showed that the changes of p H did not affect the ability of electrolyzed water to generate hydroxyl radicals when the available chlorine concentration was 17 mg / L.When the available chlorine concentration was 60 mg / L,the ability to generate hydroxyl radicals increased with the p H increasing,the hydroxyl radicals in slightly acidic electrolyzed water did not change significantly within 0~24h,the concentration of hydroxyl radicals reached the maximum when the storage time of 5h both at 17℃ and 4℃.At the different p H and the available chlorine concentration,and the capacity of electrolyzed water to produce hydroxyl radicals was stronger than that of sodium hypochlorite solution.