Nicozn Trimetallic Oxides Nanoflower Spheres and Reduced Graphene Oxide Nanosheets for Electrochemical Sensing Detection of Piroxicam

Abstract

The mixed metal oxides prepared by carbonate hydroxide as template had excellent electrocatalytic activity, rich active spots and great specific surface areas, and their conductivity can be further improved after combining with rGO. Here, NiCoZn glycerol nanospheres are produced by solvothermal method. Then, NiCoZn carbonate hydroxide nanoflower spheres are generated under solvothermal conditions using NiCoZn glycerol nanospheres as template and finally are mixed and annealed to obtain NCZ-MMO@rGO. It exhibits a high sensitivity (0.35 μA·μM-1) and low detection limit (0.055 μM) for electrochemical detection of PX (0-60 μM), as well as good properties such as anti-interference, repeatability, reproducibility and stability. This study provides a guidance for the subsequent detection of PX.

Keywords: transition metal hydroxide carbonates, mixed metal oxides, nanosheet spheres, electrochemical sensors, PX detection