固体超强酸SO_4~(2-)/TiO_2-Fe_2O_3光催化降解含酚废水

采用固体超强酸SO42-/TiO2-Fe2O3为光催化剂,苯酚的光催化降解为模型反应,考察了pH值、苯酚初始浓度、催化剂投加量、光照距离、光照时间、助催化剂H2O2对光催化降解过程的影响。结果表明,苯酚初始浓度为50mg/L,催化剂投加量5g/L,光照距离11cm,光照时间为150min,降解率达61.29%,添加助催化剂H2O2后,反应60min,苯酚降解率达到85.12%。

Photocatalystic degradation of phenol-containing wastewater by solid superacid SO_4~(2-)/TiO_2-Fe_2O_3

Solid surperacid catalysts SO_4~(2-)/TiO_2-Fe_2O_3 were used as photocatalyst in the photocatalystic degrada-tion of phenol The properties of photocatalystic degradation were investigated by phenol-containing wastewater used as objective compound, and the influence of the factors enhanced degradation conditions on the removal rate were explored, including pH, initial concentration, quantity of catalyst, light distance, reaction time and promotor H_2O_2. The results in-dicated that, initial concentration was 50mg/L, quantity of catalyst was 5g/L, light distance was llcm and reaction time was 150min, the degradation rate of phenol-containing wastewater was over 61.29%. Adding promotor catalyst H_2O_2, phenol degradation rate reached 85.12% when reacted 60min.