摘要
用含钛炉渣制备了光催化剂GN,通过催化降解罗丹明B废水,分析了催化剂投加量,废水pH值等因素对脱色率的影响。实验结果表明:催化剂GN具有较高的光催化活性,选取适当的催化剂投加量以及合适的废水pH值有助于罗丹明B的降解,GN最佳投加量为0.25g.L-1,适宜的废水pH值为2。当罗丹明B废水浓度为25mg.L-1时,在最佳条件下,光催化反应1h后,罗丹明B废水的降解率达95%以上。
The photocatalytic GN is prepared by using Ti - containing slag. The degradation of rhodamine B with GN and the effects of various factors on the degradation possesses such as catalyst dosages, pH values of rhodamine B etc. are studied. The experimental results have shown that GN has a high activity in photocatalytic reaction. The degradation rate is greatly increased under the optimal condition. In the experiment, the optimal dosages of catalyst and pH value are 0.25g·L^-1 and 2, respectively. When the concentration of rhodamine B is 25mg·L^-1 the degradation rate is increased to 95% after an hour photocatalytic reaction under the optimal condition,.
出处
《化学工程师》
CAS
2008年第4期53-56,共4页
Chemical Engineer
关键词
含钛炉渣
光催化剂GN
罗丹明B
降解率
Ti- containing slag
photocatalyst GN
rhodamine B
degradation rate
