Bio-based Micro-/Meso-/Macroporous Hybrid Foams with Ultrahigh Zeolite Loadings for Selective Capture of Carbon Dioxide
Journal article, 2019

Microporous (<2 nm) crystalline aluminosilicates in the form of zeolites offer a great potential as efficient adsorbents for atmospheric CO2 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 CO2 sorption exhibits a linear relationship between the zeolite content and CO2 adsorption capacity and high selectivity over N2, where the gelatin/nanocellulose foam efficiently supports the zeolite crystals without apparently blocking their pores.

nanocellulose

gelatin

CO adsorption 2

zeolites

Hybrid foams

selective capture

Author

Luis Valencia

Stockholm University

Walter Rosas Arbelaez

Chalmers, Chemistry and Chemical Engineering, Applied Chemistry, Applied Surface Chemistry

Andrea Aguilar-Sanchez

Stockholm University

A. P. Mathew

Stockholm University

Anders Palmqvist

Chalmers, Chemistry and Chemical Engineering, Applied Chemistry, Applied Surface Chemistry

ACS Applied Materials & Interfaces

1944-8244 (ISSN) 1944-8252 (eISSN)

Vol. 11 40424-40431

Subject Categories

Bio Materials

Chemical Engineering

Materials Chemistry

DOI

10.1021/acsami.9b11399

More information

Latest update

11/6/2019