邻氯酚红-Fenton体系对金属离子的光化学传感研究  

Spectral properties of chlorophenol red-Fenton system and its colorimetric chemosensing for metal ions

作　　者：郑宽[1] 赖承钺[1] 郝丽萍[1] 李方[1] 

机构地区：[1]四川大学化学学院,绿色化学与技术教育部重点实验室,四川成都610064

出　　处：《化学研究与应用》2010年第2期232-234,共3页Chemical Research and Application

基　　金：教育部“大学生创新实验计划”国家级项目(071061021)资助

摘　　要：Based on typical Fenton reaction,a specific kind of triphenylmethane dyestuff,chlorophenol red was developed to be a colorimetric chemosensor for Fe2+,and its sensing behavior toward metal ions was further investigated by UV-Vis spectroscopy.The results obtained showed that CPR exhibited high selectivity for Fe2+ over other metal ions.In the presence of H2O2,the addition of Fe2+ made the absorption peak of 435nm descended with a distinct color change of the CPR solution from yellow to colorless.After the necessary condition as well as the spectrophotometric properties of the sensing system was explored in detail,we suggested CPR a new colorimetric chemosensor for the rapid,easy,and highly selective detection of Fe2+ in solution.Based on typical Fenton reaction, a specific kind of triphenylmethane dyestuff, chlorophenol red was developed to be a colorimetric chemosensor for Fe^2＋ , and its sensing behavior toward metal ions was further investigated by UV - Vis spectroscopy. The results obtained showed that CPR exhibited high selectivity for Fe^2＋ over other metal ions. In the presence of H2O2, the addition of Fe2＋ made the absorption peak of 435nm descended with a distinct color change of the CPR solution from yellow to colorless. After the necessary condition as well as the spectrophotometric properties of the sensing system was explored in detail, we suggested CPR a new eolorimetric chemosensor for the rapid, easy, and highly selective detection of Fe^2＋ in solution.

关 键 词：氯代酚 FENTON反应 Fe2+ 化学传感 

分 类 号：O657.3[理学—分析化学]