类Fenton催化剂氢氧化钴制备及其降解甲基橙的研究

Preparation of Fenton-like catalyst cobalt hydroxide and its degradation of methyl orange

以水热法制得非均相类Fenton催化剂氢氧化钴[Co(OH)_(2)]并降解甲基橙,用单因素实验明确影响因素。结果表明,Co(OH)_(2)呈不规则六方晶型片状,粒径为0.5~50.0μm,在pH为2~10内催化性能较优。在优化的药剂用量下,COD_(Cr)降解率随着双氧水用量的增加、反应温度的升高而增加。

The heterogeneous Fenton-like catalyst cobalt hydroxide[Co(OH)_(2)]was prepared by hydrother⁃mal method and used to degrade methyl orange,and the influencing factors were clarified by single factor test.The results showed that Co(OH)_(2)was irregular hexagonal crystal flakes with a particle size of 0.5~50.0μm;it had excellent catalytic performance in the range of pH 2~10.Under the optimized dosage,the degrada⁃tion rate of COD_(Cr) increased with the increase of hydrogen peroxide and reaction temperature.