镧掺杂纳米二氧化钛处理印染废水

Lanthanated Doped Nano TiO_2 Processing Printing and Dying Wastewater Research

通过对二氧化钛掺杂金属镧氧化物进行改性,研究了镧掺杂纳米二氧化钛对活性紫模拟印染废水的降解性能。确定了有利于光催化反应的最佳条件,在氧化镧掺杂量占二元复合光催化剂(La2O3/TiO2)总量0.8%,煅烧温度500℃,催化剂添加量为2.0 g/L时,20 min紫外光照下最高降解率可达到60%左右。

Aims to study the photocatalytic degradation of printing and dying wastewater by using La2O3-doped TiO2 as catalyst and ultraviolet as light source,the optimum conditions are found,that is,La2O3 accounts for 0.8 percent of La2O3-doped TiO2 catalysts.The calcining temperature is 500℃.The proper dosage of La2O3-Doped TiO2 is 2.0 g/L.The photocatal-ytic reaction time is 20 min.The highest degradation rate is about 60%.