▎ 摘　　要

NOVELTY - A hydrogel particle electrode loaded with MXene active material comprises a reduced graphene oxide and MXene active material. The reduced graphene oxide is formed by low-temperature hydrothermal reduction of graphene oxide. The hydrogel particle electrode loaded with MXene active material prepared by (1) adding 2 mg/mL graphene oxide dispersion, 2 mg/mL MXene dispersion, and 0.46 mol/L sodium bisulfite solution in a mass ratio of 2:1:12, in a hydrothermal mold, magnetically stirring a mixture for 30 minutes to form a hydrogel precursor with uniform composition, (2) blowing nitrogen into the mold for 5 minutes, and the gas flow rate is 2 m3/hour, and (3) after cooling the mold to room temperature, repeatedly dialyzing the hydrogel containing residual salt with deionized water for 5-20 times, after 30 minutes of dialysis each time, changing water and dialyzing again, removing the remaining sodium bisulfite salt. USE - Hydrogel particle electrode loaded with MXene active material used for dye wastewater treatment. ADVANTAGE - The hydrogel particle electrode loaded with MXene active material has excellent ability to catalyze and degrade pollutants, high degree of mineralization of dye pollutants, reduced secondary pollution, and is simply prepared. DETAILED DESCRIPTION - A hydrogel particle electrode loaded with MXene active material comprises a reduced graphene oxide and MXene active material. The reduced graphene oxide is formed by low-temperature hydrothermal reduction of graphene oxide. The hydrogel particle electrode loaded with MXene active material prepared by (1) adding 2 mg/mL graphene oxide dispersion, 2 mg/mL MXene dispersion, and 0.46mol/L sodium bisulfite solution in a mass ratio of 2:1:12, in a hydrothermal mold, magnetically stirring a mixture for 30 minutes to form a hydrogel precursor with uniform composition, (2) blowing nitrogen into the mold for 5 minutes, and the gas flow rate is 2 m3/hour, after discharging the residual air in the hydrothermal mold, sealing the mold, placing the hydrothermal mold in an electric drying box and increasing the temperature to 80degreesC, and reacting the hydrogel precursor at this temperature for 30 hours to prepare a hydrogel containing residual sodium bisulfite salt, and (3) after cooling the mold to room temperature, repeatedly dialyzing the hydrogel containing residual salt with deionized water for 5-20 times, after 30 minutes of dialysis each time, changing water and dialyzing again, removing the remaining sodium bisulfite salt.