Volume 8 Issue 2
Apr.  2023
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Article Navigation >  Green Energy&Environment  > 2023  >  8(2): 452-458
Yingying Yang, Honglei Fan, Tianbin Wu, Guanying Yang, Buxing Han. Complete degradation of high-loaded phenol using tungstate-based ionic liquids with long chain substituent at mild conditions. Green Energy&Environment, 2023, 8(2): 452-458. doi: 10.1016/j.gee.2021.05.009
Citation: Yingying Yang, Honglei Fan, Tianbin Wu, Guanying Yang, Buxing Han. Complete degradation of high-loaded phenol using tungstate-based ionic liquids with long chain substituent at mild conditions. Green Energy&Environment, 2023, 8(2): 452-458. doi: 10.1016/j.gee.2021.05.009
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Complete degradation of high-loaded phenol using tungstate-based ionic liquids with long chain substituent at mild conditions

doi: 10.1016/j.gee.2021.05.009

  • a. Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Colloid and Interface and Thermodynamics, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China;

  • b. Education Research Center of Chaoyang District, Beijing, 100021, China;

  • c. School of Chemistry and Chemical Engineering, University of Chinese Academy of Sciences, Beijing, 100049, China;

  • d. College of Chemistry and Chemical Engineering, Yantai University, Yantai, China

Funds:

This work was financially supported by the National Natural Science Foundation of China (21875265, 22293015, 22121002).

  • Received date 18 January 2021, Accepted date 19 May 2021, RevRecd date 06 May 2021, Publish date 21 May 2021,
    Abstract
  • Phenol in waste water threatens human health and is difficultly to be decomposed by nature. Efficient degradation of high-loaded phenol in water under mild condition is still a great challenge. Herein, ionic liquids with tungstate anion were designed and prepared. It was found that dodecyltrimethylammonium tungstate could catalyzed degradation of phenol into gases and water thoroughly at 323 k in 8 h. Tungstate anion revealed good catalytic oxidative activity and long carbon chain group connecting with cation of ionic liquids enriched phenol around catalysts, which induced the complete degradation of phenol at mild conditions. Increasing the amounts of hydrogen peroxide benefited to the total degradation of phenol. In addition, the ionic liquid could be reused for its excellent thermal stability. Our work provided a different strategy to treat waste water containing phenol efficiently.

     

    • • Tungstate-based ionic liquids with different chain substituent was prepared. • Tungstate-based ionic liquid could degrade high-loaded phenol (48 g L–1) into gases and water completely at 323 K. • Tungstate anion revealed good catalytic oxidative activity. • Long carbon chain group connecting with cation of ionic liquids enriched phenol around catalysts.
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