摘要
选取球状堇青石蜂窝陶瓷作为催化剂基体,制备了堇青石蜂窝陶瓷负载CuO/CeO2-ZrO2/TiO2催化剂,采用XRD、BET等方法对其进行了结构表征,测定了其催化湿式氧化含酚废水的活性及抗压强度、脱落率、Cu2+溶出浓度等性能指标。结果表明,CuO/CeO2-ZrO2/TiO2堇青石蜂窝陶瓷催化剂在反应温度180℃、压力5Mpa、搅拌速率为600r/min时,催化湿式氧化反应200minCOD去除率可达92.7%;球状堇青石蜂窝陶瓷CuO/CeO2-ZrO2/TiO2催化剂具有强度高、易装填、易更换、脱落率低特点,Cu2+溶出浓度低于环保排放标准,适合工业化处理含酚废水。
CuO/CeO2-ZrO2 /TiO2 catalysts were prepared using cordierite honeycomb ball as support.The catalysts were characterized by XRD and BET.The catalytic activity of CuO/CeO2-ZrO2/TiO2 in wet air oxidation of phenol was investigated.The efficient catalyst was obtained by measuring the COD removal of phenol in the reaction.With the reaction at 180？C,under 5 Mpa and the mixing at 600r/min,the COD removal reached 92.7% in 200min.The as-prepared cordierite honeycomb ball-supported CuO/CeO2-ZrO2/TiO2 catalysts are suitable for the industrialized treatment of phenol-containing wastewater owing to their high strength,easy application,low dropping percentage and Cu2＋ leaching below the effluent standard for environment protection.
出处
《陶瓷学报》
CAS
北大核心
2011年第4期529-533,共5页
Journal of Ceramics
基金
江西省教育厅2010年科技基金项目(编号:GJJ10650)
