关键词: 三维电催化, 粒子电极, 固相焙烧, 2-二乙胺基-6-甲基-4-羟基嘧啶

Abstract: A series of particle electrodes were prepared by solid phase calcination method using pottery clay as substrate，mental oxide as active component. The catalytic activity of particle electrodes were investigated by the treatment of 2-diethylamino-6-methyl-4-hydroxypyrimidine simulated wastewater under three-dimensional electrocatalytic oxidation conditions. When the ratio of copper oxide and zinc oxide was 0.25 mole and 0.1 mole per Kilogram Pottery Clay，respectively，calcined temperature had been kept at 1000 ℃ for 2h，the activity of prepared particle electrode was the highest. The 2-diethylamino-6-methyl-4-hydroxypyrimidine removal rate and CODCr removal rate was 83.45% and 35.17%，respectively，under cell voltage 15V，initial pH 3，electrode span 6cm，supporting electrolyte 30g/L，airflow 40L/h，150 min after the treatment，and the particle electrode indicates high catalytic stability. The study on degradation mechanism shows that the main degradation reaction of the 2-diethylamino-6-methyl-4-hydroxypyrimidine is the opening of pyrimidine ring into small nitrogen-containing compound，while the mineralization rate of the products after pyrimidine ring is destroyed is relatively low.

Key words: three-dimensional electrocatalytic, particle electrode, solid phase calcination, 2-diethylamino-6-methyl-4-hydroxypyrimidine