Sonochemically synthesized rod-like bismuth phosphate and carbon black hybrid electrocatalyst for electrochemical monitoring of hazardous sulfamethazine

Abstract

The environmental toxicity of sulfa drugs has attracted significant attention worldwide. Herein, we constructed a carbon-decorated BiPO4 rod-modified glassy carbon electrode (GCE) for electrochemical detection of sulfamethazine (SMZ). The composite was prepared based on carbon black (CB) and BiPO4 rods by a simple, greener, nontoxic, and cost-effective ultrasonication method. The physicochemical and electrochemical properties of CB/BiPO4 composite has characterized using different physicochemical and electrochemical techniques. The developed CB/BiPO4 composites modified GCE exhibited effective electrochemical active surface area and fast electron transfer rate towards SMZ determination. The developed sensor found wide linear ranges, low limit of detection (LOD), excellent sensitivity, and selectivity. Additionally, the developed sensor successfully analyzed the practical applicability with satisfactory outcomes. Therefore, the present report demonstrates the cheap and cost-effective platform for hazardous SMZ determination.