Method for electrochemically detecting heavy metal ions by doping modified enhanced nano material

• Main Authors: ZHANG YONGXING, LI SUWEN, LI SHANSHAN, XU QIANQIAN
• Format: Patent
• Language: Chinese; English
• Published: 17.03.2020
• Subjects: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; PHYSICS; TESTING

The invention discloses a method for electrochemically detecting heavy metal ions by doping a modified enhanced nano material. The doped nanosheet is used for modifying a bare glassy carbon electrodeby adopting a dispensing method to be used for a sensitive interface constructed by electrode modification, and the concentration of heavy metal ions to be detected is gradually detected in an acid-base buffer solution by utilizing an electrochemical three-electrode system through a standard addition method. Cobalt nitrate is used as a metal material source, water is used as a solvent, urea is used as a reducing agent and a precipitating agent, the Ni-doped Co3O4 porous nanosheet with excellent adsorption and electro-catalytic properties is obtained and high-sensitivity detection of heavy metal ions in the water environment is realized. The method for hydrothermal preparation of the precursor is simple, and raw materials are easy to obtain, quick and easy to operate, the size is uniform, the nanosheet obtained thr