Cu对MnCeO_x催化苯酚水相氧化的促进作用

Promoting Effect of Cu on MnCeO_x-Catalyzed Phenol Oxidation in Aqueous Phase

制备了Cu修饰的MnCeOx催化剂,并用于苯酚水溶液氧化降解反应.结果表明,Cu的加入可以显著提高MnCeOx催化剂上苯酚氧化深度和溶液化学耗氧量去除率.通过X射线衍射和程序升温还原等手段对催化剂中Cu的作用进行了考察,发现Cu加入后形成了CuMn2O4物相,从而有利于提高催化剂的氧化活性.

Cu-modified MnCeOx catalysts were prepared and applied to the oxidative degradation of aqueous phenol solutions.The modification by Cu increased phenol oxidation and chemical oxygen demand removal of aqueous phenol solutions.The promotion effects of Cu were analyzed by X-ray diffraction and temperature-programmed reduction.It was found that CuMn2O4 formed with the addition of Cu,which was favorable for the increase of catalytic activity.