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CMK-3在低温高压下对一氧化碳的吸附以减少温室效应

CO Adsorption by CMK-3 at Low Temperatures and High Pressure to Reduce the Greenhouse Effect.

作者信息

Cantador-Fernandez David, Otero-Izquierdo Rocio, Van Der Voort Pascal, Jiménez José Ramón, Fernández-Rodríguez José María

机构信息

Departamento de Química Inorgánica e Ingeniería Química, E.P.S. de Belmez, Universidad de Cordoba, Avenida de la Universidad s/n, Belmez, E-14240 Cordoba, Spain.

Instituto Químico para la Energía y el Medioambiente (IQUEMA), Universidad de Cordoba, E-14071 Cordoba, Spain.

出版信息

Materials (Basel). 2024 Aug 3;17(15):3845. doi: 10.3390/ma17153845.

DOI:10.3390/ma17153845
PMID:39124509
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC11313371/
Abstract

In this study, the maximum CO capture capacity of an ordered mesoporous carbon (CMK-3) was evaluated at high pressure (35 atm) and several temperatures (0, 10, 20, and 35 °C). CMK-3 was synthesized with the hard template method (silica SBA-15) using furfuryl alcohol and toluene as carbon sources. The CO adsorption isotherms were fitted to the following adsorption theories: Freundlich, Langmuir, Sips, Toth, Dubinin-Radushkevich, and Temkin. The maximum capture capacity (726.7 mg·g) was achieved at 0 °C and 34 atm. The results of the study of successive adsorption-desorption cycles showed that multi-cycle reversible gas capture processes could be used in optimal temperature and pressure conditions. It was determined that 0.478 g of CMK-3 would be required to reduce the CO concentration in 1 m of air to pre-industrial levels (280 ppm). The obtained results may contribute to technological developments for the mitigation of human impacts on the environment through the capture of atmospheric CO.

摘要

在本研究中，评估了有序介孔碳（CMK-3）在高压（35个大气压）和几个温度（0、10、20和35℃）下的最大CO捕获能力。采用硬模板法（二氧化硅SBA-15），以糠醇和甲苯为碳源合成了CMK-3。将CO吸附等温线拟合到以下吸附理论：弗伦德利希、朗缪尔、西普斯、托特、杜比宁-拉杜舍维奇和坦金。在0℃和34个大气压下实现了最大捕获量（726.7毫克·克）。连续吸附-解吸循环的研究结果表明，多循环可逆气体捕获过程可用于最佳温度和压力条件。经测定，要将1立方米空气中的CO浓度降低到工业化前水平（280 ppm），需要0.478克CMK-3。所得结果可能有助于通过捕获大气中的CO来减轻人类对环境影响的技术发展。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/852c/11313371/998e84c13054/materials-17-03845-g009.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/852c/11313371/998e84c13054/materials-17-03845-g009.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/852c/11313371/e212c1192ab3/materials-17-03845-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/852c/11313371/26d9e3a0d387/materials-17-03845-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/852c/11313371/271db8ed9f26/materials-17-03845-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/852c/11313371/afb3482b7f2b/materials-17-03845-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/852c/11313371/237796d36687/materials-17-03845-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/852c/11313371/998e84c13054/materials-17-03845-g009.jpg

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