二氧化钛/膨润土复合光催化材料协同Fenton反应去除景观水中多环芳烃研究  

TiO/bentonite photocatalyst work together with Fenton reaction to remove PAHs from iandscape water

作　　者：杨春娣[1] 王文文 周婉姣 高玉梅 杨幸 Yang Chundi;Wang Wenwen;Zhou Wanjiao;Gao Yumei;Yang Xing(Xi'an University of Architecture and Technology Huaqing Collage,Xi'an 710043)

机构地区：[1]西安建筑科技大学华清学院土木工程学院,西安710043

出　　处：《化工新型材料》2021年第5期186-189,194,共5页New Chemical Materials

基　　金：陕西省教育厅专项科研计划项目(18JK024);陕西省教育厅教改项目(17BY127);西安建筑科技大学华清学院“大学生创新创业训练项目”(Y201913679005)。

摘　　要：以Na基膨润土和TiO_(2)为原料制备复合光催化材料,借助扫描电镜、X射线衍射技术对材料进行表征,再将其应用到Fenton-紫外协同催化体系中去除水中的多环芳烃。在研究催化剂投加量、搅拌方式、Fenton投加量等单因素影响的基础上进行正交试验。结果表明:协同催化体系对多环芳烃(PAHs)的去除率大于普通TiO_(2)光催化;室温条件下磁力搅拌、紫外光照射3h,复合催化材料投加量1.8g,Fenton投加30mL时,协同催化体系对PAHs的去除效果最高为94%。Na-bentonite and TiO_(2)were used as raw materials to prepare composite photocatalytic materials,which were characterized by SEM and XRD,and then applied to the fenton-uv co-catalytic system to remove polycyclic aromatic hydrocarbon(PAHs)in water.Orthogonal experiments were carried out on the basis of studying the influence of single factors such as catalyst dosage,agitation mode and fenton dosage.The results showed that the removal rate of PAHs in the collaborative catalytic system was higher than that of ordinary TiO_(2).At room temperature,when magnetic stirring and ultraviolet irradiation were applied for 3 h,the adding amount of TiO_(2)/bentonite was 1.8 g,and when fenton was added 30 mL,the removal effect of PAHs was up to 94%.

关 键 词：多环芳烃 复合光催化材料制备 协同去除 

分 类 号：TQ426.7[化学工程]