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提亚醇功能化的Th/Zr-UiO-66用于高效的C₂H₂/CO₂分离

Xiaokang Wang¹, Hongyan Liu¹, Meng Sun¹

¹State Key Laboratory of Heavy Oil Processing, School of Materials Science and Engineering, College of Chemistry and Chemical Engineering, China University of Petroleum (East China), Qingdao, Shandong 266580, China.

ACS applied materials & interfaces

|February 1, 2024

概括

这项研究使用功能化的金属有机框架 (MOFs) 增强了乙 (C2H2) 和二氧化碳 (CO2) 的分离. 新的UPC-120吸附剂在这个具有挑战性的气体净化任务中表现得更好.

科学领域:

材料科学材料科学材料科学
化学工程是化学工程的重要组成部分.
分离科学分离科学

背景情况:

吸附性分离对于净化具有相似性质的气体至关重要,例如从二氧化碳中分离乙.
金属有机框架 (MOF) 提供可调节的特性,非常适合设计先进的吸附剂.
将乙 (C2H2) 与二氧化碳 (CO2) 分离,由于它们的物理化学性质相似,因此存在重大挑战.

研究的目的:

开发一种高效的吸附剂,用于乙 (C2H2) 和二氧化碳 (CO2) 的分离.
为了微调基于Zr和Th的UiO-66 MOF的孔隙环境,使用异构函数化.
为了研究连接体功能化的影响吸附剂性能,挑战气体分离.

主要方法:

采用异构管状功能化策略,通过自下而上的合成将甲基固定到基于Zr和Th的UiO-66上.
合成和表征了功能化吸附剂,被指定为UPC-120.
通过吸附异温,动态突破实验和理论模拟,评估了C2H2/CO2分离性能.

主要成果:

功能化的UPC-120吸附剂与未经修改的对应物相比,显示出更好的C2H2/CO2分离性能.
吸附等温和和突破曲线证实了UPC-120的优越分离能力.
理论模拟提供了对增强分离背后的机制的见解.

结论:

由异构体化学指导的MOF的联体功能化是改善具有挑战性的气体分离的有效策略.
开发的UPC-120吸附剂显示出从二氧化碳中有效净化乙的承诺.
这种方法为设计用于工业气体分离过程的先进吸附剂提供了新的视角.

关键词:

在C2H2/CO2分离过程中.吸附剂是一种吸附剂.乙二二醇是一种金属-有机的框架.网状化学网状化学

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