عنوان	Electroanalytical sensing of Cd2+based on metal–organic frameworkmodified carbon paste electrode
نوع پژوهش	مقاله چاپ‌شده در مجلات علمی
کلیدواژه‌ها	Metal-organic framework,Cadmium,Graphene,Differential pulse voltammetry,Carbon paste electrode
چکیده	This paper reports, for the first time, the fabrication and characterization of sensitive electrochemicalsensor for the efficient detection of cadmium ion using metal organic framework (MOF). TMU-16-NH2([Zn2(NH2-BDC)2(4-bpdh)]·3DMF) a kind of metal organic frame works was used as a modifier. The inter-action between cadmium and amine groups of TMU-16-NH2are conditioned by dative attachment thatcaused Cd2+-N complexation by soft–soft interactions. To achieve the highest efficiency of the sensor,effective factors on analytical response such as pH, deposition potential and deposition time have beenoptimized. Under optimal experimental conditions, the oxidation current increased by the addition ofcadmium in the sample and dynamic ranges obtained from 0.7 to 120 by differential pulse voltammetry(DPV). This method exhibited a lower limit of detection (LOD) of 0.2 g L−1(S/N = 3). The presented workdemonstrates that the MOFs are effective materials to fabricate efficient electrochemical sensors for theeasy and costly effective detection of cadmium ions in solutions.
پژوهشگران	محمود روشنی (نفر اول)، اکرم ولی پور (نفر دوم)، زهرا ساعدی (نفر سوم)