Solar photocatalytic oxidation of methyl orange with TiO2 suspension
二氧化钛悬浆体系太阳光催化降解甲基橙研究

The photocatalytic degradation of methyl orange in solar irradiating with TiO 2 suspension was investigated.The effects of methyl orange initial concentration,solution pH,catalyst quantity,irradiation intensity and the ration of reactor's aperture to volume( A/V ) on decolorization rate and TOC removal rate were discussed in detail.The results showed that in typical sunny day,when solar irradiation average intensity was 91600lx,initial concentration of methyl orange was 20mg/L,initial pH was 3 88, A/V is 36 m -1 ,after 2h irradiation the decolorization ration was 90% and after 4h TOC removal achieved 70%.