Bio-based Micro-/Meso-/Macroporous Hybrid Foams with Ultrahigh Zeolite Loadings for Selective Capture of Carbon Dioxide

Luis Valencia (Corresponding Author), Walter Rosas, Andrea Aguilar-Sanchez, Aji P. Mathew, Anders E.C. Palmqvist (Corresponding Author)

Research output: Contribution to journalArticleScientificpeer-review

45 Citations (Scopus)

Abstract

Microporous (<2 nm) crystalline aluminosilicates in the form of zeolites offer a great potential as efficient adsorbents for atmospheric CO 2 in the eminent battle against global warming and climate change. The processability of conventional zeolite powders is, however, poor, which limits their implementation in many applications, such as in gas filtration industrial systems. In this work, we overcome this issue through the preparation of hybrid foams using mesoporous/macroporous supporting materials based on the strong network properties of gelatin/nanocellulose, which can support ultrahigh loadings of silicalite-1, used as a model sorbent nanomaterial. We achieved up to 90 wt % of zeolite content and a microporous/mesoporous/macroporous hybrid material. The application of hybrid foams for selective CO 2 sorption exhibits a linear relationship between the zeolite content and CO 2 adsorption capacity and high selectivity over N 2, where the gelatin/nanocellulose foam efficiently supports the zeolite crystals without apparently blocking their pores.

Original languageEnglish
Pages (from-to)40424−40431
Number of pages8
JournalACS Applied Materials & Interfaces
Volume11
Issue number43
DOIs
Publication statusPublished - 30 Oct 2019
MoE publication typeA1 Journal article-refereed

Keywords

  • hybrid foams
  • nanocellulose
  • gelatin
  • zeolites
  • selective capture
  • CO2 adsorption
  • CO adsorption

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