Alkylation of phenol with tert-butyl alcohol catalyzed by ionic liquid-supported MCM-41 with different pore sizes

  • Tingshun Jiang
  • Yingjie Xie
  • Liming Dai
  • Yingying Li
  • Qian Zhao
Article
  • 23 Downloads

Abstract

Mesoporous silica materials (MCM-41) with different pore sizes were synthesized by using 1,3,5-trimethylbenzene as a micelle expander and used as support material for preparation of containing sulfonic acid ionic liquid catalysts. The –SO3H functionalized Brønsted acid ionic liquids ([Ps-mim]HSO4) were loaded on MCM-41 with different pore sizes by impregnation method and the three composites [1-IL@MCM-41 (2.4, 3.6 and 4.8 nm)] were obtained. Their physicochemical properties were characterized by FT-IR, TG-DSC, N2 adsorption technique, XRD and TEM. Also, the catalytic performances of 1-IL@ MCM-41 (2.4, 3.6 and 4.8 nm) were evaluated by the alkylation of phenol with tert-butyl alcohol. The effects of reaction temperature, pore size of MCM-41and the recyclability of catalysts on the conversion of phenol and selectivity to products were investigated. The 1-IL@MCM-41 (4.8 nm) exhibited the best phenol conversion up to 78.7% at temperature as low as 80 °C among the three composite catalysts, and the recyclability of 1-IL@MCM-41 (3.6 nm) is much better than the catalysts of1-IL@MCM-41 (2.4 nm) and 1-IL@MCM-41 (4.8 nm).

Keywords

Pore-expanding –SO3H functionalized ionic liquids MCM-41 Alkylation Phenol 

Notes

Acknowledgements

Financial support from Project supported by the National Natural Science Foundation of China (51572115) is gratefully acknowledged.

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Copyright information

© Akadémiai Kiadó, Budapest, Hungary 2018

Authors and Affiliations

  • Tingshun Jiang
    • 1
  • Yingjie Xie
    • 1
  • Liming Dai
    • 1
  • Yingying Li
    • 1
  • Qian Zhao
    • 1
  1. 1.School of Chemistry and Chemical EngineeringJiangsu UniversityZhenjiangChina

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