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Visible sequestration of Cu2+ ions using amino-functionalized cotton fiber

机译:氨基官能化棉纤维对Cu 2 + 离子的可见螯合

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In this study, an amino functionalized cotton fiber, which was used to adsorb Cu2+ ions via visible sequestration, was prepared and investigated. The amino-functionalized cotton fiber (named as ACF) exhibited enhanced adsorption, selectivity and distinct color response to Cu2+ ions in aqueous solutions. The absorbance responses of ACF to Cu2+ ions (named as ACF–Cu), obtained from the a fiber optic spectrometer, were monitored with different pH values and initial Cu2+ ion concentrations. A linear relationship between the absorbance response and the initial concentrations of Cu2+ ions was established and can be used for the determination of Cu2+ ion concentrations in aqueous solutions. Furthermore, in the interference study, ACF showed great selectivity to Cu2+ ions when other ions (e.g., Pb2+ or Zn2+ ions) coexisted with the Cu2+ ions in solution. The ability of ACF to effectively detect Cu2+ ions with the presence of other interfering ions in solution was of great significance.
机译:本研究制备并研究了一种氨基官能化棉纤维,该纤维用于通过可见螯合法吸附Cu 2 + 离子。氨基官能化棉纤维(称为ACF)对水溶液中Cu 2 + 离子具有增强的吸附,选择性和明显的颜色响应。用不同的pH值和初始Cu <监测ACF对从光纤光谱仪获得的Cu 2 + 离子(称为ACF–Cu)的吸收响应。 small> 2 + 离子浓度。建立了Cu 2 + 离子的吸光度响应与初始浓度之间的线性关系,可用于测定Cu 2+ <水溶液中的/ sup> 离子浓度。此外,在干扰研究中,ACF对Cu 2 + 离子显示出很高的选择性,而其他离子(例如例如,Pb 2 + 或Zn 2 + 离子与Cu 2 + 共存溶液中的离子。在溶液中存在其他干扰离子的情况下,ACF有效检测Cu 2 + 离子的能力具有重要意义。

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