首页|分子模拟研究Mg-MOF-74吸附工业废气中的CS2

分子模拟研究Mg-MOF-74吸附工业废气中的CS2

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二硫化碳(CS2)是工业废气中常见的污染物,即使较低浓度也会对人体健康、环境、工业设备造成巨大危害。吸附法是分离工业废气中CS2经济环境效益较高的方法之一。本文采用巨正则蒙特卡洛和分子动力学方法研究了金属-有机框架材料(Mg-MOF-74)及其改性材料(NH2-Mg-MOF-74)对CS2的吸附性能和微观吸附机制,以期获得高效富集CS2的材料并有望应用于工业生产。研究结果表明:材料对CS2的吸附量高于活性炭、沸石等传统材料,属于Langmiur单分子层吸附;低压条件下,氨基(-NH2)有效增大了金属Mg附近的吸附密度,提高了材料的吸附性能。
Molecular Simulation Study on the Adsorption of CS2 in Industrial Exhuast by Mg-MOF-74
Carbon disulfide(CS2)is a common pollutant in industrial exhuast.Even low concen-trations can cause great harm to human health,environment and industrial equipment.Adsorption is one of the potential methods with higher economic and environmental benefits for separating CS2 from industrial exhaust.In this paper,the grand canonical Monte Carlo and molecular dynamics methods are used to study the adsorption performance and microscopic mechanism of metal-organic framework(Mg-MOF-74)and its chemical modification material(NH2-Mg-MOF-74)on CS2,in or-der to find a material that can efficiently enrich CS2 and are expected to be used in industrial production.The results indicate that the adsorption capacity of Mg-MOF-74 to CS2 is higher than that of traditional materials such as activated carbon and zeolite,which belongs to Langmiur mono-layer adsorption.Under low pressure conditions,the amino group(-NH2)effectively increases the adsorption density near the metal Mg and improves the adsorption of the material performance.

grand canonical Monte Carlocarbon disulfidemetal-organic frameworksphysical adsorption

李婕、刘佳祥、陶文铨、李卓

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同济大学环境科学与工程学院,上海 200092

巨正则蒙特卡洛 二硫化碳 金属有机框架材料 物理吸附

2024

工程热物理学报
中国工程热物理学会 中国科学院工程热物理研究所

工程热物理学报

CSTPCD北大核心
影响因子:0.4
ISSN:0253-231X
年,卷(期):2024.45(12)