摘要
为了优化MnO2的吸附性能和电化学性能,以硫酸锰为锰源、Si、Bi为掺杂元素制备了两种改性MnO2,并进行了BET表征分析。结果表明,掺杂Bi的质量分数为1.5%的MnO 2吸附性能最好。其对亚甲基蓝的吸附效率高达95%,比纯MnO2的效率提高了34%。掺杂Si的质量分数为18%的MnO 2的电化学性能最好。其电流密度明显增大至51.4 mA/cm^2。
In order to optimize the adsorption performance and electrochemical performance of MnO2,two modified MnO2 were prepared with manganese sulfate as manganese source and Si and Bi as doping elements,and BET characterization analysis was performed.The results show that the adsorption performance of MnO2 doped with 1.5% Bi is the best.Its adsorption efficiency for methylene blue is as high as 95%,which is 34% higher than that of pure MnO2.MnO2 doped with Si with a mass fraction of 18%has the best electrochemical performance.The current density is significantly increased to 51.4 mA/cm^2.
作者
周巧云
赵星云
王淑勤
Zhou Qiaoyun;Zhao Xingyun;Wang Shuqin(Department of Environmental Science and Engineering,North China Electric Power University,Baoding 071003,China;State Grid Tianjin Electric Power Company Maintenance company,Tianijn 300000,China)
出处
《山东化工》
CAS
2021年第1期1-3,共3页
Shandong Chemical Industry
关键词
MNO2
掺硅
掺铋
吸附
亚甲基蓝
manganese dioxide
silicon doped
bismuth doped
adsorption
methylene blue
