【作者】 孙亚萍； 赵景联；

【Author】 Sun yaping Zhao jinlian School of Environment and Chemistry Engineering, Xi’an Jiao Tong University, Xi’an, 710049

【机构】 西安交通大学环境与化学工程学院；

【摘要】 以杂多酸为催化剂,研究了酸性品红染料废水的光催化降解特性和工艺。在均相和固载的不同条件下的比较实验中得出固载型杂多酸催化剂具有较高光解效率。选取浸泡浓度、浸泡时间、烧结功率和烧结时间四个因素进行正交实验,得出催化剂的最佳制备条件:用0.10mol/1磷钨酸的水溶液浸泡TiO228h,于120℃烘干,再在微波炉650w功率下烧结40min。将此条件下制得的TiO2固载磷钨酸催化剂用于光催化耦合降解酸性品红溶液,在最优化反应条件下:反应时间50min、固载型催化剂用量0.17g/L、光照距离17cm、pH值小于5、酸性品红溶液的初始浓度小于60mg/L、通气量100ml/s·L,酸性品红溶液的降解率可高达94.76%。更多还原

【Abstract】 The photodegradation of the acid fuchsin wastwater using the heteropolyacid was studied. The homogeneorous reaction was compared with the catalyst-supported reaction, and the latter one has the higher efficiency. The concentration and duration of soak were choosen to form orthogonal table with the power and duration of the agglutination, and then the condition for the preparation of the supported catalyst was optimized.The optimal catalyst was used in the photodegradation of the acid fushsin wastwater using the heteropolyacid, and the efficiency was up to 94.76%.更多还原