CuO和Cu(Ⅱ)催化臭氧氧化的研究  

EFFECT OF CuO AND Cu(II) ON OZONATION OF OXALIC ACID

作　　者：皮运正[1] 王建龙[1] 吴迪[1] 

机构地区：[1]清华大学核能与新能源研究院环境技术研究室,北京100084

出　　处：《环境化学》2005年第2期197-199,共3页Environmental Chemistry

基　　金：国家自然科学基金项目(编号:50325824);中德政府间合作项目

摘　　要：以乙二酸为实验对象,研究了CuO/Al_2O_3和Cu(II)对臭氧的催化作用实验结果表明,在低pH条件下,CuO/Al2O3有较强的催化臭氧氧化能力,可以将乙二酸的去除率提高约15%而在中性条件下,20g·l-1CuO/Al2O3的催化效果有限磷酸盐缓冲液可以强烈抑制臭氧氧化乙二酸以及CuO/Al2O3的催化作用与CuO/Al2O3相比,Cu(II)To increase the ozonation efficiency, oxalic acid was selected as a target compound to investigate the catalytic ozonation with the presence of CuO/Al_~2 O_~3 and Cu(Ⅱ) ions. The results showed that, at low pH the existence of CuO/Al_~2 O_~3 can enhance the removal rate of oxalic acid by 15%, indicating a strong catalytic effect of CuO/~Al_~2 O_~3 . At neutral pH, 20 g·l^-1 CuO/Al_~2 O_~3 had catalytic effect, however, this effect is limited. Phosphate buffer can strongly inhibit ozonation of oxalic acid and the catalytic effect of CuO/Al_~2 O_~3 . Compared with heterogeneous CuO/Al_~2 O_~3 , Cu(II)ions confirmed a higher catalytic effect on improvement of ozonation of oxalic acid.

关 键 词：乙二酸 催化作用 Al2O3 臭氧氧化 Cu(Ⅱ) 催化效果 研究 去除率 低PH 磷酸盐缓冲液 

分 类 号：O614[理学—无机化学]