zif-67 derived cobalt sulfide/g-c 3 n 4 nanohybrid as catalyst for electroreduction ofchloramphenicol

Zif-67-derived cobalt sulfide wrapped by graphitic carbon nitride (g-c3n4) nanohybrid was synthesized and used for modification of glassy carbon electrode (gce) to prepare chloramphenicol (cap) sensor. the catalytic activity of the cobalt sulfide/g-c3n4/gce toward cap electroreduction has been investigated using cyclic voltammetry. at the surface of the electrocatalyst, the cathodic peak current .for reduction of cap is higher than that g-c3n4 and zif-67-derived cobalt sulfide at lower overpotential