以橙黄Ⅱ作为水体污染物,研究了UV/H2O2作用下橙黄Ⅱ光去色和光矿化的效果.结果表明,当橙黄Ⅱ起始浓度一定时,随着H2 O2浓度的增大,橙黄Ⅱ光去色和光矿化程度都上升；当H2 O2浓度一定时,随着橙黄Ⅱ起始浓度的增大,其光去色和光矿化程度均下降；当pH值从5.9上升到10.0时,橙黄Ⅱ光去色和光矿化程度很接近.%With orange Ⅱ as pollutant in water, its photodecolorization and photomineralization by UV/ H2O2 were investigated. The result showed that,when orange Ⅱ initial concentration was constant,the photodecolorization and photomineralization extent of orange Ⅱ increased with H2O2 concentration increasing,when H2 O2 concentration was constant, the photodecolorization and photomineralization extent of orange II decreased with its initial concentration increasing,when the pH value rised from 5. 9 to 10. 0,the photodecolorization and photomineralization extent of orange Ⅱ changed a little.
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