节点文献

SO₄^2-/TiO₂-WO₃光催化氧化邻硝基苯酚

Photocatalytic Oxidation of o-Nitrophenol Using SO₄^2-/TiO₂-WO₃ Catalyst

推荐 CAJ下载
PDF下载
不支持迅雷等下载工具，请取消加速工具后下载。

【Author】 Peng Shaohong~1,2,Huang Yunfeng~2,Zhong Li~1,Mi Jie~3,Zhang Yuanming~3 (1.Faculty of Chemical Engineering,South China University of Technology,Guangzhou Guangdong 510640,China;2.Guangzhou City College,Guangzhou Guangdong 510405,China;3.Department of Chemistry,Jinan University,Guangzhou Guangdong 510632,China)

【机构】华南理工大学化工学院；广州城市职业学院；暨南大学化学系；暨南大学化学系广东广州510640；广东广州510405；广东广州510640；广东广州510632；

【摘要】研究了用H2SO4溶液浸渍处理T iO2-WO3,制备SO24-/T iO2-WO3催化剂的方法;考察了该催化剂对邻硝基苯酚的光催化氧化性能。T iO2-WO3的最佳处理工艺条件:H2SO4浓度为0.2m o l/L,WO3加入量为3%,于550℃焙烧3h。实验结果表明,反应30m in后SO24-/T iO2-WO3催化剂可使邻硝基苯酚降解97%;邻硝基苯酚的光催化氧化降解过程遵循一级动力学规律。更多还原

【Abstract】 The method for preparation of SO₄^2-/TiO₂-WO₃ catalyst by dip treating TiO₂-WO₃ in H₂SO₄ solution was studied.The photocatalytic oxidation activity of this catalyst to o-nitrophenol was investigated.The optimum process conditions are:H₂SO₄ concentration 0.2mol/L,WO₃ doping content 3% and calcinating at 550℃ for 3h.The experimental results indicate that the SOSO₄^2-/TiO₂-WO₃ catalyst can degrade 97% of o-nitrophenol after 30min and the degradation of o-nitropheno approximately follows the rule of first order kinetics.更多还原