活性炭负载铈催化臭氧氧化去除水中邻苯二甲酸二甲酯的研究

用浸渍法在活性炭上负载铈制备催化剂（Ce/AC），并用XRD和SEM对其进行了表征．考察了Ce负载量、催化剂投加量对Ce/AC催化臭氧氧化降解邻苯二甲酸二甲酯（DMP）的影响．结果表明，Ce/AC催化臭氧氧化降解DMP的优化参数是催化剂投加量1.5 g/L，Ce的负载量0.2 %．在优化条件下，Ce/AC加入有利于催化臭氧氧化DMP过程中TOC的去除．质量浓度30 mg/L（pH=5.0）DMP反应60 min后的TOC去除率由以AC为催化剂的48 %提高到68 %，而单独臭氧氧化过程中TOC去除率仅有22 %．

STUDY ON CATALYTIC OZONATION OF DIMETHYL PHTHALATE OVER CERIUM/ACTIVATED CARBON CATALYST

Cerium-doped activated carbon catalyst(Ce/AC) was prepared using dipping method to degrade dimethyl phthalate in water.Activated carbon(AC) and Ce/AC were characterized by XRD and SEM.The effects of cerium content and catalyst dosage on catalytic ozonation of DMP were investigated.The results showed that the catalytic activity reached optimal when 0.2% cerium was doped onto AC support and the optimal dosages of Ce/AC catalyst was 1.5 g/L.Compared with the native activated carbon,Ce/AC could notably enhance ...