Published in

Elsevier, Chemical Engineering Science, (124), p. 170-178, 2015

DOI: 10.1016/j.ces.2014.07.017

Links

Tools

Export citation

Search in Google Scholar

Recovery of HMF from aqueous solution by zeolitic imidazolate frameworks

Journal article published in 2015 by Hua Jin, Yanshuo Li, Xinlei Liu ORCID, Yujie Ban, Yuan Peng, Wenmei Jiao, Weishen Yang
This paper is available in a repository.
This paper is available in a repository.

Full text: Download

Green circle
Preprint: archiving allowed
Orange circle
Postprint: archiving restricted
Red circle
Published version: archiving forbidden
Data provided by SHERPA/RoMEO

Abstract

Three zeolitic imidazolate frameworks (ZIF-8, ZIF-90 and ZIF-93) were investigated for adsorption of 5-hydroxymethylfurfural (HMF) from aqueous solution. The equilibrium uptake of HMF decreased following the order of ZIF-8 (465 mg g−1)>ZIF-90 (307 mg g−1)>ZIF-93 (279 mg g−1), in accordance with the hydrophobicity of the frameworks. The adsorption equilibrium data were found to follow Langmuir adsorption model. The sorption kinetics could be well described by the pseudo-second-order kinetic equation. The HMF-loaded ZIFs could be fully regenerated with ethanol as the desorption solvent. Selective adsorption of HMF from HMF/fructose/water mixtures was also carried out. The uptake of HMF remained unchanged, with no observable adsorption of fructose. In liquid phase breakthrough experiments, the uptake of HMF on ZIF-8 in column was consistent with the batch study. Furthermore, the ZIF-8 packed column could be regenerated effectively and recycled with no discernible loss of adsorption capacity. These findings confirm that ZIF-8 can be employed as an effective and reusable adsorbent for HMF recovery from aqueous solution.