title: Highly Selective and Sensitive Colorimetric and Fluorescent Chemosensor for Rapid Detection of Ag+, Cu2+and Hg2+Based on a Simple Schiff Base.
abstract: A new reversible colorimetric and fluorescent chemosensor MMIP based on a simple Schiff base has been successfully synthesized. MMIP exhibited high selectivity and sensitivity towards Ag+, Cu2+and Hg2+ions with a short response time in DMSO/H2O (1/1, v/v) solution among various metal ions, and the results could be monitored directly by naked eyes. The binding stoichiometry between MMIP and Ag+/Hg2+/Cu2+has been determined to be 1:2 by Job's plot and FT-IR analysis. MMIP could effectively detect Ag+, Cu2+and Hg2+over a wide pH range of 3-10. The good linear correlations were obtained in the concentration ranges of 0-20 μM for Ag+, Cu2+and Hg2+. Thus sensor MMIP could be potentially used for the quantification of Ag+, Cu2+and Hg2+in aqueous solution.
authors.affiliation: Shandong Provincial Key Laboratory of Fine Chemicals, School of Chemistry and Pharmaceutical Engineering, Qilu University of Technology, Jinan, 250353, People's Republic of China.
authors.forename: Shanshan
authors.initials: S
authors.lastname: Zhang
authors.affiliation: Shandong Provincial Key Laboratory of Fine Chemicals, School of Chemistry and Pharmaceutical Engineering, Qilu University of Technology, Jinan, 250353, People's Republic of China.
authors.forename: Xingxing
authors.initials: X
authors.lastname: Wu
authors.affiliation: Shandong Provincial Key Laboratory of Fine Chemicals, School of Chemistry and Pharmaceutical Engineering, Qilu University of Technology, Jinan, 250353, People's Republic of China. qf_niu1216@qlu.edu.cn.
authors.forename: Qingfen
authors.initials: Q
authors.lastname: Niu
authors.affiliation: Shandong Provincial Key Laboratory of Fine Chemicals, School of Chemistry and Pharmaceutical Engineering, Qilu University of Technology, Jinan, 250353, People's Republic of China.
authors.forename: Zongrang
authors.initials: Z
authors.lastname: Guo
authors.affiliation: Shandong Provincial Key Laboratory of Fine Chemicals, School of Chemistry and Pharmaceutical Engineering, Qilu University of Technology, Jinan, 250353, People's Republic of China.
authors.forename: Tianduo
authors.initials: T
authors.lastname: Li
authors.affiliation: Shandong Provincial Key Laboratory of Fine Chemicals, School of Chemistry and Pharmaceutical Engineering, Qilu University of Technology, Jinan, 250353, People's Republic of China.
authors.forename: Haixia
authors.initials: H
authors.lastname: Liu
keywords: Ag+; Colorimetric; Cu2+; Fluorescent sensor; Hg2+; Schiff base