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辐射诱导Zn(bdc)(dabco)0.5膜的制备及其轻烃吸附性能

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本研究采用辐射诱导法在柔性聚合物基材上制备了连续金属-有机框架Zn(bdc)(dabco)0.5膜,通过X射线衍射、傅里叶红外光谱和扫描电子显微镜等对其形貌和结构进行了表征,并通过BET比表面积测定、密度泛函理论孔径分析以及单组分吸附等温线的测定来研究了连续金属-有机框架Zn(bdc)(dabco)0.5膜的轻烃吸附性能.研究结果表明,相比甲烷,Zn(bdc)(dabco)0.5膜对乙烷和丙烷具有较高的吸附.且Zn(bdc)(dabco)0.5膜具有更高的乙烷/甲烷选择性(常压下达到11)和丙烷/甲烷选择性(常压下达到10),这一工作体现了MOF膜在分离领域中独特的优势.
Radiation-induced preparation of Zn(bdc)(dabco)0.5 membrane and its light hydrocarbon adsorption performance
This article describes the preparation of continuous metal-organic framework(MOF)Zn(bdc)(dabco)0.5 membranes on flexible polymer substrates using a radiation-induced method.The morphologies and structures of the membranes were investigated using X-ray diffraction,Fourier-transform infrared spectroscopy,and scanning electron microscopy.Their light hydrocarbon-adsorption properties were characterized using Brunauer-Emmett-Teller specific surface area measurements,density functional theory pore-size analysis,and single-component adsorption isotherms.The results indicated that the Zn(bdc)(dabco)0.5 membranes exhibited higher adsorption for ethane and propane than for methane.Moreover,the Zn(bdc)(dabco)0.5 membranes showed enhanced ethane/methane selectivity(reaching 11 at atmospheric pressure)and propane/methane selectivity(reaching 10 at atmospheric pressure).This study demonstrates the unique advantages of MOF membranes in the field of separation.

RadiationAdsorptionLight hydrocarbonMetal-organic frameworksMembrane

王兴兴、崔帅川、黄一凡、刘诗涵、张依帆、李志刚、邓鹏飏

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中国科学技术大学应用化学与工程学院 合肥 230026

中国科学院长春应用化学研究所 高分子物理与化学国家重点实验室 长春 130022

黑龙江省原子能研究院核化学与放射化学研究中心 哈尔滨 150086

辐射 吸附 轻烃 金属-有机框架

2024

辐射研究与辐射工艺学报
中国科学院上海应用物理研究所

辐射研究与辐射工艺学报

CSTPCD
影响因子:0.527
ISSN:1000-3436
年,卷(期):2024.42(6)