净水技术2018，Vol.37Issue(3)：71-76,6.DOI:10.15890/j.cnki.jsjs.2018.03.013
羟基氧化镍催化臭氧氧化水中草酸
Catalytic Ozonation of Oxalic Acid in Water with Nickel Oxyhydroxide(NiOOH)
摘要
Abstract
Nickel oxyhydroxide is prepared by liquid phase oxidation by use of K2S2O8 and NiOOH as the oxidant and raw material respectively.The characterization of the product is determined by XRD,SEM,Fourier transform infrared spectroscopy and thermogravimetric analysis,and the catalytic performance is investigated in ozonation of oxalic acid.The effects of catalyst dosage,ozone concentration and pH value on the removal of oxalic acid are studied.The results show that nickel oxyhydroxide catalyst enables an interesting improvement of ozonation efficiency during the degradation of oxalic acid compared with ozone alone,and the catalytic ozonation system follows a hydroxyl radical mechanism.The maximum degradation of oxalic acid can reach 92％ in 60 min when 100 mg/L catalytic is added with the ozone concentration of 9.0 mg/L and pH value of 3.4.关键词
羟基氧化镍/草酸/催化臭氧氧化Key words
nickel oxyhydroxide(NiOOH)/oxalic acid/catalytic ozonation分类
资源环境引用本文复制引用
罗梦玉,黄宇,姜杰文,黄远星,穆岩..羟基氧化镍催化臭氧氧化水中草酸[J].净水技术,2018,37(3):71-76,6.基金项目
上海市教育委员会科技创新项目(15ZZ075) （15ZZ075）
