高负载量Cu7/ACF对苯酚催化氧化的活性及稳定性评价

Activity and Stability Evaluation of High Loading Cu7 / ACF to Catalytic Oxidation of Phenol

采用过量浸渍法制备了Cu7／ACF吸附催化剂，并用X-射线粉末衍射仪（XRD）对催化剂进行表征，通过程序升温氧化（TPO）技术确定Cu7／ACF对苯酚的催化氧化操作温度，通过吸附氧化循环实验评价Cu7／ACF对苯酚催化氧化的活性和稳定性。结果表明：Cu7／ACF在260—280oC温度范围内具有较高的催化氧化活性；在吸附循环实验中，Cu7／ACF在经过8次吸附一氧化循环后降至一稳定值（约58mg／g），显示了Cu7／ACF良好的苯酚催化氧化稳定性。

Cu7/ACF adsorption catalyst are prepared by excess impregnation method,the catalyst is characterized by x -ray powder diffraction （XRD） , through temperature programmed oxidation, the operation temperature of catalytic oxidation of phenol by CuT/ACF is determined ; the activity and stability of CuT/ ACF to catalytic oxidation of phenol are evaluatied by adsorption oxidation circulation experiment. The result shows ： Cu7/ACF has high catalytic oxidation activity at 260 - 280 ℃ ; the adsorption oxidtion circulation experiment, Cu7/ACF down to a stable value （ about 58 mg/g） after eight adsorpition - oxidation circulation, it shows Cu7/ACF has good phenol oxidation stability.