Preparation of Copper and Phosphorus Co Doped Three-Dimensional Layered Hexagonal Cobalt Nanodisks for Monitoring Nitrobenzene in Environmental Pollutants

Abstract

Environmental protection is an eternal topic, and now we need to strengthen environmental monitoring and management. Nitrobenzene, classified as a Group 2B carcinogen, should receive widespread attention. We have synthesized copper and phosphorus co-doped three-dimensional layered hexagonal cobalt nanodisks using a fast and simple method, and applied them for the detection of the environmental pollutant nitrobenzene. The incorporation of phosphorus into the three-dimensional layered hexagonal cobalt nanodisks creates catalytic sites, while the incorporation of copper increases the density of active sites and promotes rapid charge transfer. The co-doping of phosphorus and copper enables the composite material (CuCo NDs/P) to exhibit good catalytic activity towards nitrobenzene. Experimental results have shown that CuCo NDs/P has a lower detection limit and a wider linear range. Therefore, this sensor has significant development potential.

Keywords: Transition metal phosphides, Heteroatom doping, Electrochemical Sensor, Nitrobenzene