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目的 探讨Co-Cu/SiO_2催化剂对过碳酸钠(SPC)氧化降解邻硝基氯苯废水的催化作用.方法 配制一定浓度的邻硝基氯苯水溶液,用乙酸调节酸度,过碳酸钠为氧化剂,以自制的Co-Cu/SiO_2负载催化剂催化邻硝基氯苯的降解反应,研究反应条件对降解反应的影响.结果 当金属负载量为5%,n_(co):n_(cu)=4:1(物质的量比),n_(co-cu)=1.90×10-3mol,n_(SPC)=6.36×10~(-3)mol,c_(OCNB)=50 mg/L时,在80℃,pH=4的条件下,邻硝基氯苯降解率可达到92%.结论 Co-Cu/SiO_2催化剂能有效催化SPC氧化降解邻硝基氯苯,该方法可应用于邻硝基氯苯废水的处理.“,”Objective To investigate the catalysis of Co-Cu/SiO_2 in oxidation of sodium percarbonate (SPC) for o-nitrochlorobenzene. Methods The solution of o-nitrochlorobenzene was prepared, acetic acid was used to adjust acidity, sodium percarbonate was applied as the oxidant, the self-prepared Co-Cu/SiO_2 was used as the catalyzer to catalyze the degradation reaction of o-nitrochlorobenzene and the effect of reaction condition on degradation was researched. Results In the condition of loading amount of metal was 5%, n_(Co):n_(Cu)= 4:1, n_(Co-Cu)=1.90×l0~(-3)mol,n_(SPC)=6.36×10~(-3) mol,C_(OCNB)=50 mg/L and t=80℃, pH=4,the degradation efficiency of o-nitrochlorobenzen could reach 92%. Conclusion Co-Cu/SiO_2 is efficient in catalyzing the oxidative degradation of sodium percarbonate for o-nitrochlorobenzene and is applicable to the waste water treatment for eliminating o-nitrochlorobenzene