Abstract
The past two decades have witnessed the potentials of metal–organic frameworks (MOFs) for the adsorptive separation of difficult mixtures due to their designable porosity and significant surface area. In this work, two Zr6-based metal–organic framework materials with different pore sizes, NU-906 and NU-1008, were synthesized and evaluated as adsorbents for fructose/glucose separation, which is very important for sustainable biomass utilization. The two materials were characterized and studied, including the kinetics, isotherms, and thermodynamics by batch adsorption experiments, which can be well described by pseudo-second-order kinetics and Langmuir model (NU-906), Freundlich model (NU-1008), and the adsorption mechanism is described in terms of pore exclusion. The experimental results showed that NU-906 exhibited record-breaking adsorption selectivity towards fructose, whose static selectivity factor was up to 13.7. The NU-906 material with expanded particle size was further studied as filling of the chromatographic column for dynamic adsorption, and the dynamic selectivity factor was about 4.0, which was much higher than the column selectivity factor (∼2.5) used in the industry at present. In addition, three adsorption/regeneration experiments demonstrated its reusability.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
