• 文献标题:   Graphene oxide promotes V-Cu-Ce-ZSM-5 to catalyze SO2 and NO at low temperature: performance and mechanism
  • 文献类型:   Article
  • 作  者:   WANG LM, ZHAO ZK, WANG W, XING GS, ZENG F, QI LQ
  • 作者关键词:   desulfurization, denitration, catalyst, graphene oxide
  • 出版物名称:   ENVIRONMENTAL SCIENCE POLLUTION RESEARCH
  • ISSN:   0944-1344 EI 1614-7499
  • 通讯作者地址:  
  • 被引频次:   0
  • DOI:   10.1007/s11356-022-22434-w EA AUG 2022
  • 出版年:   2023

▎ 摘  要

A catalyst (V-Cu-Ce-ZSM-5) was explored to simultaneously remove the SO2 and NOx from flue gas by use of the ZSM-5 molecular sieve as the carrier, V and Cu as the active components, and Ce as the additive in low temperature of 150 degrees C. The performance of V-Cu-Ce-ZSM-5 was evaluated for the oxidation of NO and SO2 before and after the addition of graphene oxide (GO). The results showed that V-Cu-Ce-ZSM-5@GO0.5 had the best performance at a reaction temperature of 150 degrees C, and the oxidation efficiency of SO2 and NO was 94.60% and 83.64%, respectively. The multiple structural characterizations (BET, SEM, Raman, XRD, and XPS) revealed that the loading of V and Cu with the additive Ce expanded the specific surface area and pore volume of ZSM-5, provided more adsorption sites for SO2 and NO, and had good desulfurization and denitration activity. The addition of GO further improved the dispersibility of active components and auxiliaries, increased the number of active sites in the reaction process, and significantly improved catalytic activity.