溴离子掺杂钨酸钡催化超声降解罗丹明B研究  

Ultrasonic Degradation of Rhodamine B Catalyzed by Bromine-Doped Barium Tung-state

作　　者：陈韫煊 王宇宁 钟雨晴 高峰伟 王新[1] 

机构地区：[1]辽宁大学药学院,辽宁 沈阳 [2]沈阳化工大学应用化学学院,辽宁 沈阳

出　　处：《自然科学》2023年第3期383-391,共9页Open Journal of Nature Science

摘　　要：本文通过水热合成法制备了溴离子(Br−)掺杂的钨酸钡(BaWO4)催化剂材料,并对其进行了多方面表征。研究了不同实验参数对该催化剂超声催化降解罗丹明B (Rhodamine B, Rh B)的影响,并确定了各项实验参数的最优值。得到优化后的实验参数为Br−/BaWO4中Br−掺杂比为5%、5% Br−/BaWO4加入量为1.0 g∙L−1,超声功率200 W,超声时间2 h,Rh B初始浓度5 mg∙L−1,初始溶液pH = 7时,此时对Rh B的降解率高达98.3%,并通过循环实验分析了该催化剂的可实际应用性。In this study, bromine-doped barium tungstate (BaWO4) was prepared by hydrothermal synthesis and characterized in various aspects. The effects of different experimental parameters on the sonocatalytic degradation of rhodamine B (Rh B) were evaluated by UV-v is spectra, and then determined the optimal values of each experimental parameter in the process of degradation. The degradation rate of Rh B by Br−/BaWO4 was 98.3% under the optimized experimental parameters with the ratio of bromine-doping was 5%, the addition amount of 5% Br−/BaWO4 was 1.0 g•L−1, the ultrasonic power was 200 W, the ultrasonic time was 2 h, the initial concentration of Rh B solution was 10 mg•L−1, and the initial pH of solution was 7. The practical applicability of the sonocatalyst was carried out by the cyclic experiments.

关 键 词：声催化降解 钨酸钡 溴离子 罗丹明B 

分 类 号：O64[理学—物理化学]