Enhanced adsorption selectivity of 1-hexene / n-hexane mixtures in Cu-BTC metal-organic framework by acid modification

Introducing of Cu(I) in MOFs by In Situ Reduction with Ni as the Catalyst for Efficient Olefin/Paraffin Separation

“…Bentley et al 27 used Cu-BTC to selectively adsorb isobutene and isobutane and found a selectivity of 2.1. Zhu et al 28 used a solvothermal approach to optimize the synthesis of Cu-BTC and discovered that its adsorption capabilities for 1-hexene and n-hexane were 122.31 and 18.95 mg/g, respectively, with a selectivity of 6.45. Furthermore, when the sample was modified by acetic acid, the adsorption amount of 1-hexene increased to 187.90 mg/g, while that of n-hexane decreased from 18.95 to 10.75 mg/g, resulting in an improvement in selectivity from 6.45 to 17.48.…”