Conversion of carbon dioxide into cyclic carbonates using wool powder-KI as catalyst

Photocatalytic Properties of Core-Shell Structured Wool-TiO2 Hybrid Composite Powders

“…This is ascribed to the wool powders having larger surface area and exposure of more active groups such as peptide bonds, side chains of amino acid residues, and disulfide cross-links [17]. In addition, wool powders were used as catalysts for cyclo-addition coupling of CO 2 with propylene oxide to generate propylene carbonate, which could be repeatedly used to catalyze coupling of other mono-substituted terminal epoxides with CO 2 without apparently losing the activity [18].…”

Appealing Renewable Materials in Green Chemistry

“…While the capability of complexing metals is attributed to the thiol groups, aminic residues are able to efficiently trap CO 2 . Additionally, this precise characteristic aroused the interest of Chang et al in their work [ 33 ]. Carbon dioxide can be an extremely versatile tool if correctly activated; the only problem is that we are dealing with a basically stable and poorly reactive compound.…”

Metal-assisted synthesis of salen-based porous organic polymer for highly efficient fixation of CO2 into cyclic carbonates

“…Thus far, various homogeneous and heterogeneous catalytic systems have been explored to increase the efficiency of this cyclization reaction, including salen ( N , N ′-bis(salicylidene)ethylenediamine) complexes, 18,19 ionic liquids, 20,21 alkali metal salts, 22 functionalized porous organic polymers, 23–25 metal–organic frameworks (MOFs), 26,27 and others. 28,29 Although a large number of high-performance homogeneous catalysts have been developed to catalyze the cycloaddition reaction of CO 2 , most of them cannot withstand the harsh reaction conditions, and complicated purification processes and weak recyclability limit their large-scale application in industry.…”