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Yue S, Qu HL, Song XX, Feng XN. Novel hydroxyl-functionalized ionic liquids as efficient catalysts for the conversion of CO 2 into cyclic carbonates under metal/halogen/cocatalyst/solvent-free conditions. NEW J CHEM 2022. [DOI: 10.1039/d2nj00257d] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Environmentally friendly synthesis route to carbonates from CO2 and epoxides catalysed by novel hydroxyl-functionalized ionic liquids under metal/halogen/cocatalyst/solvent-free conditions.
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Affiliation(s)
- Shuang Yue
- Institute of Rare and Scattered Elements Chemistry, College of Chemistry, Liaoning University, Shenyang, Liaoning 110036, China
| | - Hong-Liu Qu
- Institute of Rare and Scattered Elements Chemistry, College of Chemistry, Liaoning University, Shenyang, Liaoning 110036, China
| | - Xin-Xin Song
- Institute of Rare and Scattered Elements Chemistry, College of Chemistry, Liaoning University, Shenyang, Liaoning 110036, China
| | - Xuan-Nuo Feng
- Institute of Rare and Scattered Elements Chemistry, College of Chemistry, Liaoning University, Shenyang, Liaoning 110036, China
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Abstract
The study tried to contribute to solving two serious environmental issues: CO2 reducing and sewage sludge disposal. Thus, sewage-sludge-derived materials were obtained in order to be evaluated for CO2 adsorption capacity. Therefore, the char resulted after the sewage sludge pyrolysis was subjected to oxidation and chemical activation processes by using different quantities of alkaline hydroxide. One of the obtained materials, activated with a lower quantity of alkaline hydroxide, was also treated with acid chloride. Further, the materials were structural and texturally characterized, and material treated with acid chloride was used for CO2 adsorption tests, due to high surface area and pore volume. The handmade system coupled to a gas chromatograph allowed the adsorption efficiency evaluation using different feed gases (rich and poor in CO2) by completed purge of pipe line and on-line check. Additionally, the adsorption capacity, separation efficiency, and CO2 recovery were calculated. Taking into account the values for adsorption capacity (separation efficiency and CO2 recovery), it can be concluded that the sewage sludge derived material could be a promising solution for CO2 reduction and waste disposal.
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Lai S, Gao J, Xiong X. Rosin-based porous heterogeneous catalyst functionalized with hydroxyl groups and triazole groups for CO2 chemical conversion under atmospheric pressure condition. REACT FUNCT POLYM 2021. [DOI: 10.1016/j.reactfunctpolym.2021.104976] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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