固体超强酸纳米光催化剂SO42--TiO2的制备及Ag改性

CIESC Journal

固体超强酸纳米光催化剂SO₄^2--TiO₂的制备及Ag改性

刘红，刘潘，辜孔良，李晶，孙旋

武汉科技大学资源与环境学院

出版日期:2010-07-28 发布日期:2010-12-30

Preparation and modification by Ag of solid super-acid nano- SO₄^2--TiO₂ photo-catalyst

LIU Hong，LIU Pan，GU Kongliang，LI Jing，SUN Xuan

School of Resources and Environment， Wuhan University of Science and Technology

Online:2010-07-28 Published:2010-12-30

摘要/Abstract

摘要： 以钛酸丁酯为原料，通过在TiO₂溶胶中添加质量分数为49%的硫酸，用溶胶–凝胶法制备了固体超强酸纳米光催化剂SO₄²^－-TiO₂，并在此基础上用硝酸银进行了改性。用XRD、IR、UV-vis、BET等手段对所制得的试样进行了表征，同时以甲基橙及苯酚的水溶液为模拟污染物，评价了样品的光催化性能，发现SO₄²^－-TiO₂的光催化活性最高可达单一TiO₂的10倍，SO /Ag-TiO₂的液相光催化活性超过P-25。

Abstract: Solid super-acid nano-SO -TiO₂powder photo-catalyst were prepared by the sol-gel method using Ti(OC₄H₉)₄ as raw material and adding 49% sulfuric acid into the original liquid. Then the SO /Ag-TiO₂photo-catalyst was modified by AgNO₃. The prepared samples were characterized with UV-vis, IR, XRD and BET measurements. The photo-catalytic reactivity of samples was evaluated by using methyl orange and phenol aqueous solution as simulated contaminants. The results showed that the photo-catalytic reactivity of SO -TiO₂ was 10 times higher than that of unmodified TiO₂ and the photo-catalytic reactivity of SO /Ag-TiO₂ was even higher than that of P-25.

刘红，刘潘，辜孔良，李晶，孙旋. 固体超强酸纳米光催化剂SO₄^2--TiO₂的制备及Ag改性 [J]. CIESC Journal.

LIU Hong，LIU Pan，GU Kongliang，LI Jing，SUN Xuan

. Preparation and modification by Ag of solid super-acid nano- SO₄^2--TiO₂ photo-catalyst[J]. .

固体超强酸纳米光催化剂SO₄^2--TiO₂的制备及Ag改性

Preparation and modification by Ag of solid super-acid nano- SO₄^2--TiO₂ photo-catalyst

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