【摘要】 TiCl4为原料采用常压沸腾回流工艺合成的纳米TiO2 粉体 ,经超声分散成溶胶后 ,用浸渍提拉的方法将TiO2 固定在导电玻璃上制成多孔纳米薄膜光电复合催化剂 ,并就该催化剂对甲醇的光电复合催化氧化性能进行了研究。结果表明 :在碱性环境中氧化甲醇比在酸性环境中有利的多 ,这可能是OH-和TiO2 纳米多孔膜电极上的吸附有关。在酸性和中性条件的溶胶涂膜制备的TiO2 薄膜电极有高的光电氧化活性 ;而在强碱溶胶中涂膜的电极没有光电催化性能。更多还原

【Abstract】 The porous TiO 2 anatase nanometer thin films were prepared from titania powder by ultrasonic wave and dip coating technique.Its photo electrocatalytic performance for the oxidation of methanol was investigated.The experiment indicated that the effect of pH value plays an important role in changing the photo electrocatalytic activity of the TiO 2 thin films. Photo electrochemical performance of the TiO 2 thin films electrode prepared by different pH value colloid was studied.更多还原