مشخصات پژوهش

صفحه نخست /Development and Application ...
عنوان
Development and Application of a Potentiometric Hg+2 Imprinted Polymer/graphitic Carbon Nitride/Carbon Paste Electrode
نوع پژوهش مقاله چاپ شده
کلیدواژه‌ها
Ion-imprinted polymers (IIP), Potentiometric sensors, Mercury determination, Graphitic carbon nitride (g-C3N4), Carbon paste electrode
چکیده
A potentiometric electrode was developed for Hg+2 through modifying a carbon paste electrode using Hg+2 ion imprinted polymer and graphitic carbon nitride (g-C3N4). The optimal composition of the developed electrode (Hg+2 -IP/g-C3N4/ CPE) was observed for a composition of Hg+2-IP: g-C3N4 nano-sheets: nujol oil: graphite powder at a weight ratio of5:5:25:65 w:w). The sensor’s response had a Nernstian slope (30.5±0.4 mVdecade-1 and a short response time of around 10 s, and produced a linear response over a broad concentration window extending from 1.0×10−9 M to 1.0×10−3M and a detection limit of 4.3×10−10M was determined for it. Effects of the presence of Na+, K+, Ag+, Ca2+, Mg2+, Cu2+, Ni2+, Zn2+, Cd2+and Co2+in the test solution, on the response of Hg2+-IP/g-C3N4/ CPE was evaluated and the sensor was found to be high selectivity. The developed sensor was also evaluated through analyzing the concentration of Hg2+in different water samples.
پژوهشگران محمد خزائی (هیئت علمی) (نفر اول)، علیرضا رحمانی (نفر دوم)، رضا شکوهی (نفر سوم)، عباس فرمانی (نفر چهارم)، محمدرضا گنجعلی (نفر پنجم)