【摘要】 为解决传统均相芬顿体系反应后产生大量含铁污泥、药剂使用量过大等问题,以Fe、Cu和C烧结制备非均相类芬顿体系催化剂,研究催化剂中各物质的最佳配比,考察催化剂的烧结温度和时间对催化剂比表面积和催化效能等方面的影响。通过试验得到各物质的最佳配比为Fe∶C=4∶1、Cu含量为7%、Na2Si O3含量为5%,此时对COD和苯酚的去除率分别为92.61%和98.60%。BET和化学试验结果表明,最优烧结温度和烧结时间分别为850℃和3 h,此条件下利用Fe、Cu和C制备的类芬顿催化剂具有良好的比表面积、平均孔径及催化效果。更多还原

【Abstract】 To solve the problems of large amount of iron-containing sludge produced by traditional homogeneous Fenton system and large dosage of chemicals,Fe,Cu and C were used to prepare heterogeneous Fenton-like catalyst with sintering process.The optimal proportion and the different effect of each material on the catalyst were studied,the influence of sintering temperature and sintering time on the specific surface area of the catalyst and catalytic efficiency were investigated.After the experiment,the optimal proportions of materials were Fe ∶ C = 4 ∶ 1,Cu = 7% and Na2 Si O3= 5%,and the removal rates of COD and phenol were 92.61% and 98.60% respectively.The BET and chemical experiment results showed that the optimum sintering temperature and sintering time were 850 ℃ and 3 h respectively.Under these conditions,Fenton-like catalyst prepared by Fe,Cu and C had ideal specific surface area,average pore diameter and catalytic efficiency.更多还原