Synthesis of pore-expanded mesoporous ZIF-8/silica composites in the presence of swelling agent

Xinlong Yan, Yingli Yang, Chao Wang, Xiaoyan Hu, Min Zhou, Sridhar Komarneni

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11 Scopus citations


Abstract: The synthesis of mesoporous zeolitic imidazolate framework-8/silica composites with foam-like structure templated by Pluronic P123 (EO20PO70EO20) block copolymer surfactant in the presence of swelling agent was demonstrated in this study. It was found that 1,3,5-trimethylbenzene was a suitable swelling agent, which worked effectively in the pluronic-P123-templated synthesis of zeolitic imidazolate framework-8/silica composites when a moderate amount was added. The pore diameter of the foams in resulting composites increased to 50–60 nm when the 1,3,5-trimethylbenzene /P123 weight ratio of 3/4 was used during the synthesis. In addition, the composite with enlarged diameter of foams showed superior adsorption capacity to phthalic acid (H2-PA) at 20 °C in comparison with aggregated bulk zeolitic imidazolate framework-8. Graphical Abstract: [InlineMediaObject not available: see fulltext.]

Original languageEnglish (US)
Pages (from-to)268-275
Number of pages8
JournalJournal of Sol-Gel Science and Technology
Issue number1
StatePublished - Jan 1 2017

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Ceramics and Composites
  • General Chemistry
  • Biomaterials
  • Condensed Matter Physics
  • Materials Chemistry


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