Sustainable Capture of Aromatic Volatile Organic Compounds by a Pyrene-Based Metal?Organic Framework under Humid Conditions

Title
Sustainable Capture of Aromatic Volatile Organic Compounds by a Pyrene-Based Metal?Organic Framework under Humid Conditions
Authors
Bardiya ValizadehKyriakos C. Stylianou이정훈Sylvain SudanAndrzej Gladysiak
Issue Date
2020-07
Publisher
Inorganic chemistry
Citation
VOL 59, NO 13-9036
Abstract
The threat posed by the presence of artificial volatile organic compounds (VOCs) in the environment is a widely acknowledged fact, both for environmental issues and human health concerns. Ever-increasing production requires the continuous development of technologies toward the removal of these substances. In recent years, metal?organic frameworks (MOFs) have shown a great promise toward the capture of VOCs, but their stability in humid conditions still remains a major challenge, thus hindering their widespread development. To tackle this obstacle, we designed a 3-dimensional and porous MOF, named SION-82, for the capture of small aromatic VOCs, relying solely on π?π interactions. SION-82 captures benzene efficiently (107 mg/g) in dry conditions, and no uptake decrease was observed in the presence of high relative humidity for at least six cycles. Unlike HKUST-1 and MOF-74(Co), SION-82 possesses two vital characteristics toward sustainable benzene capture under humid conditions: moisture stability and reusability. In addition, SION-82 captures benzene under humid conditions more efficiently compared to the hydrolytically stable UiO-66, highlighting the impact of having an active site for benzene capture that is not affected by water. SION-82 can additionally capture other aromatic VOCs, showing pyridine and thiophene uptake capacities of 140 and 160 mg/g, respectively.
URI
http://pubs.kist.re.kr/handle/201004/72457
ISSN
0020-1669
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KIST Publication > Article
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