title: Colorimetric and fluorescent chemosensor for highly selective and sensitive relay detection of Cu2+and H2PO4-in aqueous media.
abstract: In this manuscript, a new colorimetric and fluorescent chemosensor (T) was designed and synthesized, it could successively detect Cu2+and H2PO4-in DMSO/H2O (v/v=9:1, pH=7.2) buffer solution with high selectivity and sensitivity. When added Cu2+ions into the solution of T, it showed a color changes from yellow to colorless, meanwhile, the green fluorescence of sensor T quenched. This recognition behavior was not affected in the presence of other cations, including Hg2+, Ag+, Ca2+, Co2+, Ni2+, Cd2+, Pb2+, Zn2+, Cr3+, and Mg2+ions. More interestingly, the Cu2+ions contain sensor T solution could recover the color and fluorescence upon the addition of H2PO4-anions in the same medium. And other surveyed anions (including F-, Cl-, Br-, I-, AcO-, HSO4-, ClO4-, CN-and SCN-) had nearly no influence on the recognition behavior. The detection limits of T to Cu2+and T-Cu2+to H2PO4-were evaluated to be 1.609×10-8M and 0.994×10-7M, respectively. In addition, the sensor T also could be served as a recyclable component and the logic gate output was also defined in sensing materials. The test strips based on sensor T were fabricated, which acted as a convenient and efficient Cu2+and H2PO4-test kits.
authors.affiliation: Key Laboratory of Eco-Environment-Related Polymer Materials, Ministry of Education of China, Key Laboratory of Polymer Materials of Gansu Province, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou, Gansu 730070, PR China.
authors.forename: Jun-Xia
authors.initials: JX
authors.lastname: Su
authors.affiliation: Key Laboratory of Eco-Environment-Related Polymer Materials, Ministry of Education of China, Key Laboratory of Polymer Materials of Gansu Province, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou, Gansu 730070, PR China.
authors.forename: Xiao-Ting
authors.initials: XT
authors.lastname: Wang
authors.affiliation: Key Laboratory of Eco-Environment-Related Polymer Materials, Ministry of Education of China, Key Laboratory of Polymer Materials of Gansu Province, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou, Gansu 730070, PR China.
authors.forename: Jing
authors.initials: J
authors.lastname: Chang
authors.affiliation: Key Laboratory of Eco-Environment-Related Polymer Materials, Ministry of Education of China, Key Laboratory of Polymer Materials of Gansu Province, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou, Gansu 730070, PR China.
authors.forename: Gui-Yuan
authors.initials: GY
authors.lastname: Wu
authors.affiliation: Key Laboratory of Eco-Environment-Related Polymer Materials, Ministry of Education of China, Key Laboratory of Polymer Materials of Gansu Province, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou, Gansu 730070, PR China.
authors.forename: Hai-Ming
authors.initials: HM
authors.lastname: Wang
authors.affiliation: Key Laboratory of Eco-Environment-Related Polymer Materials, Ministry of Education of China, Key Laboratory of Polymer Materials of Gansu Province, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou, Gansu 730070, PR China.
authors.forename: Hong
authors.initials: H
authors.lastname: Yao
authors.affiliation: Key Laboratory of Eco-Environment-Related Polymer Materials, Ministry of Education of China, Key Laboratory of Polymer Materials of Gansu Province, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou, Gansu 730070, PR China.
authors.forename: Qi
authors.initials: Q
authors.lastname: Lin
authors.affiliation: Key Laboratory of Eco-Environment-Related Polymer Materials, Ministry of Education of China, Key Laboratory of Polymer Materials of Gansu Province, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou, Gansu 730070, PR China. Electronic address: zhangnwnu@126.com.
authors.forename: You-Ming
authors.initials: YM
authors.lastname: Zhang
authors.affiliation: Key Laboratory of Eco-Environment-Related Polymer Materials, Ministry of Education of China, Key Laboratory of Polymer Materials of Gansu Province, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou, Gansu 730070, PR China. Electronic address: weitaibao@126.com.
authors.forename: Tai-Bao
authors.initials: TB
authors.lastname: Wei
keywords: Aqueous media; Chemosensor; Colorimetric; Copper (II) complex; Fluorescence; H(2)PO(4)(−)