Metal-organic frameworks as burgeoning materials for the capture and sensing of indoor VOCs and radon gases

Lai, Cui; Wang, Zhihong; Qin, Lei; Fu, Yukui; Li, Bisheng; Zhang, Mingming; Liu, Shiyu; Li, Ling; Yi, Huan; Liu, Xigui; Zhou, Xiong; An, Ning; An, Zhe; Shi, Xiaoxun; Feng, Chongling

doi:10.1016/j.ccr.2020.213565

Cited by 105 publications

(43 citation statements)

References 116 publications

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“…292,293 Porous systems like MOFs and zeolites are mainly studied pre-concentrator materials in recent days due to their very high surface area (in some cases more than 1000 m 2 g −1 ) in the sensing of H 2 O, O 2 , NO x , CO, CO 2 , hydrocarbons and VOCs, NH 3 , H 2 S, SO 2 , and H 2 . 27,294,295 The working principle of a typical preconcentration using MOFs is illustrated in Fig. 11.…”

Section: Techniques For the Improvement Of Selectivitymentioning

confidence: 99%

“…MOFs, which may form one-dimensional, two-dimensional, or three-dimensional structures, can adsorb polar and non-polar molecules by their holes and channels with spatial and chemical uniformity due to molecular sieve interactions and chemical-specific interactions. 295 Moreover, MOFs show excellent sorbent properties due to their interaction with the target gas via coordination bonding, p-complex formation, hydrogen bonding, and acid-based/electrostatic interactions. 296–299…”

Section: Techniques For the Improvement Of Selectivitymentioning

confidence: 99%

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Selectivity in trace gas sensing: recent developments, challenges, and future perspectives

Barik

Pradhan

2022

Analyst

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Section: Techniques For the Improvement Of Selectivitymentioning

confidence: 99%

Section: Techniques For the Improvement Of Selectivitymentioning

confidence: 99%

Selectivity in trace gas sensing: recent developments, challenges, and future perspectives

Barik

Pradhan

2022

Analyst

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“…Furthermore, in contrast to carbon-based and metal oxide-based sensors, which require high working temperature, MOF-based sensors have shown promising performances at low/room temperatures, resulting in significant reductions in power consumption, ease of manufacture and broadened application areas [78][79][80][81]. The variation in MOFs' physical and chemical properties following the adsorption of intended gas molecules has been exploited for the effective monitoring of environmental pollutants, indoor air quality, medical diagnosis and other areas of application [8,11,29,82,83].…”

Section: Introductionmentioning

confidence: 99%

Metal-Organic-Frameworks: Low Temperature Gas Sensing and Air Quality Monitoring

et al. 2021

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As an emerging class of hybrid nanoporous materials, metal-organic frameworks (MOFs) have attracted significant attention as promising multifunctional building blocks for the development of highly sensitive and selective gas sensors due to their unique properties, such as large surface area, highly diversified structures, functionalizable sites and specific adsorption affinities. Here, we provide a review of recent advances in the design and fabrication of MOF nanomaterials for the low-temperature detection of different gases for air quality and environmental monitoring applications. The impact of key structural parameters including surface morphologies, metal nodes, organic linkers and functional groups on the sensing performance of state-of-the-art sensing technologies are discussed. This review is concluded by summarising achievements and current challenges, providing a future perspective for the development of the next generation of MOF-based nanostructured materials for low-temperature detection of gas molecules in real-world environments.

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“…This is why, because of its very low cost, it is usually replaced after use. Additionally, Lai et al noted that its amorphous structure limits the improvement of its performance for VOC removal [13]. Concerning carbon dioxide capture, Ghanbari et al mentioned the low sorption capacity of ACs at ambient temperatures due to the lack of specific ACs/CO 2 interaction as the surface functions of ACs are mostly acidic functions [1].…”

Section: Introductionmentioning

confidence: 99%

Zirconium-Based Metal Organic Frameworks for the Capture of Carbon Dioxide and Ethanol Vapour. A Comparative Study

Saidi

Yadav

et al. 2021

Molecules

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This paper reports on the comparison of three zirconium-based metal organic frameworks (MOFs) for the capture of carbon dioxide and ethanol vapour at ambient conditions. In terms of efficiency, two parameters were evaluated by experimental and modeling means, namely the nature of the ligands and the size of the cavities. We demonstrated that amongst three Zr-based MOFs, MIP-202 has the highest affinity for CO2 (−50 kJ·mol−1 at low coverage against around −20 kJ·mol−1 for MOF-801 and Muc Zr MOF), which could be related to the presence of amino functions borne by its aspartic acid ligands as well as the presence of extra-framework anions. On the other side, regardless of the ligand size, these three materials were able to adsorb similar amounts of carbon dioxide at 1 atm (between 2 and 2.5 µmol·m−2 at 298 K). These experimental findings were consistent with modeling studies, despite chemisorption effects, which could not be taken into consideration by classical Monte Carlo simulations. Ethanol adsorption confirmed these results, higher enthalpies being found at low coverage for the three materials because of stronger van der Waals interactions. Two distinct sorption processes were proposed in the case of MIP-202 to explain the shape of the enthalpic profiles.

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Metal-organic frameworks as burgeoning materials for the capture and sensing of indoor VOCs and radon gases

Cited by 105 publications

References 116 publications

Selectivity in trace gas sensing: recent developments, challenges, and future perspectives

Selectivity in trace gas sensing: recent developments, challenges, and future perspectives

Metal-Organic-Frameworks: Low Temperature Gas Sensing and Air Quality Monitoring

Zirconium-Based Metal Organic Frameworks for the Capture of Carbon Dioxide and Ethanol Vapour. A Comparative Study

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