文献类型：会议论文

英文题名：A novel colorimetric chemosensor for Cu2+ with high selectivity and sensitivity based on Rhodamine B

作者：Li, Changjiang[1,2,3];Xiang, Kaiqiang[2,3];Liu, Yunchang[2,3];Zheng, Yuchuan[1];Tian, Baozhu[2,3];Zhang, Jinlong[2,3]

机构：[1]Huangshan Univ, Dept Chem, Huangshan 245041, Peoples R China;[2]E China Univ Sci & Technol, Key Lab Adv Mat, Shanghai 200237, Peoples R China;[3]E China Univ Sci & Technol, Inst Fine Chem, Shanghai 200237, Peoples R China

会议论文集：7th Tokyo Conference on Advanced Catalytic Science and Technology (TOCAT)

会议日期：JUN 01-06, 2014

会议地点：Kyoto, JAPAN

语种：英文

外文关键词：Rhodamine B; 8-Hydroxyjulolidine; Chemosensor; High selectivity; Cu2+ ions

摘要：9-formyl-8-hydroxy-2,3,6,7-tetrahydro-1H, 5H-benzo[ij]-quinolizine rhodamine B hydrazone (FHQRH), a novel colorimetric chemosensor for Cu2+, was synthesized by a three-step synthetic route. It was found that FHQRH showed a high selectivity for Cu2+ ions and excellent anti-interference capability toward other metal ions. The FHQRH solution exhibited a visual color change after the addition of Cu2+, owing to the open spirocyclic structure via coordination with Cu2+. The complexation coefficient of FHQRH toward Cu2+ was measured to be 1:1. Furthermore, this Cu2+ chemosensor has a remarkable low detection limit of 0.45 mu M, which is 2 % of the toxic level (20 mu M) in drinking water as defined by the US Environment Protection Agency (EPA).