Naked Eye and Selective Detection of Copper(II) in Mixed Aqueous Media Using a Cellulose-based Support

作     者：FETTOUCHE Souad BOUKHRISS Aicha TAHIRI Mohamed CHERKAOUI Omar BAZI Fathallaah GMOUH Said 

作者机构：Laboratoire Recherche sur les Materiaux Textile(REN4TEX) Ecole Supeneure des Induseries de Textile et de L'habillement(ESITH)CasablancaBP 7731Maroc Laboratoire Hydrogeochimie et Bassin versant Faculte des Sciences Ain ChockUniversite Hassan IICasablancaB. P 5366Maroc Laboratore Chimie Analytique et Physico-chimie des Materiaux Faculte des Sciences Ben M'sik Universitie Hassan II CasablancaBP 150Macro Laboratoire d'lngeniene et Materiaux(LIMAT)Faculte des Sciences Ben MsikUniv er site Hassan IICasablanceBP 150Maroc 

出 版 物：《Chemical Research in Chinese Universities》 (高等学校化学研究（英文版）)

年 卷 期：2019年第35卷第4期

页      面：598-603页

核心收录：

学科分类：07[理学] 0703[理学-化学] 

主　　题：Copper(II) ions detection Azo dye Chromogenic chemosensor Cellulose-based probe 

摘      要：A new colorimetric sensor based-azo dye for Cu^2+ detection was synthesized and characterized by FTIR and NMR spectroscopies. The results showed that the azo dye had a high selective and sensitive recognition toward Cu^2+. The solution containing the sensor changed color from pink to pale yellow with a hypsochromic shift in the presence of Cu^2+. The sensor selectivity and sensitivity toward Cu^2+ ions were investigated by colorimetry and UV-Vis spectroscopy. For practical applications, a cellulosic textile test strip for high-selectivity detection of Cu^2+ ions in aqueous solution was developed using the synthesized azo dye as chromogenic chemosensor molecule, while using a solid cellulose textile as a substrate. As a result, a spectacular color change of the test strip was observed do pending on the amount of copper ions in contact with the strip, which allows an estimation of Cu^2+ concentration by naked eye.