【摘要】 研究了紫外光照射下 ,KNO3对罗丹明B光解的敏化作用 .结果表明 ,KNO3的加入可以显著提高罗丹明B的光降解率 ,反应液的酸度愈强愈有利于反应的进行 .KNO3不仅对罗丹明B的降解有敏化作用 ,而且还能够直接提供氧化罗丹明B所需要的氧 .更多还原

【Abstract】 The photosensitization of nitrate to the photooxidation of Rhodamine B under the UV irradation has been studied in this paper.The result showed that the presence of KNO 3 could promote the photooxidation of Rhodamine B markedly.The lower pH value of reaction solution corresponds with the higher reaction rate.KNO 3 not only promotes the degradation of Rhodamine B,but also directly supplys the oxygen to the oxidation of Rhodamine B.更多还原