MOF(CuBDC)-Microcantilever IR Spectroscopy for Methane Sensing with High Sensitivity and Selectivity
Methane, a greenhouse gas with 21 times the global warming potential of carbon dioxide, is increasingly subject to stringent emission regulations, driving the demand for high-performance methane sensors. This study proposes a novel IR spectroscopy technique based on a CuBDC-integrated microcantileve...
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MDPI AG
2025-01-01
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| Series: | Chemosensors |
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| Online Access: | https://www.mdpi.com/2227-9040/13/1/8 |
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| author | Seungwan Seo Seok Bin Kwon Yangkyu Park |
| author_facet | Seungwan Seo Seok Bin Kwon Yangkyu Park |
| author_sort | Seungwan Seo |
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| description | Methane, a greenhouse gas with 21 times the global warming potential of carbon dioxide, is increasingly subject to stringent emission regulations, driving the demand for high-performance methane sensors. This study proposes a novel IR spectroscopy technique based on a CuBDC-integrated microcantilever (CuBDC-microcantilever IR spectroscopy) for CH<sub>4</sub> sensing, offering exceptional sensitivity and selectivity. The metal-organic framework (MOF) CuBDC was synthesized on the microcantilever using a drop-and-dry method facilitated by an intense pulsed light technique. Characterization via scanning electron microscopy, X-ray diffraction, and Fourier transform infrared spectroscopy confirmed the successful formation of CuBDC on the microcantilever. The CuBDC-microcantilever IR spectroscopy demonstrated a significantly enhanced sensitivity, with a differential amplitude at the CH<sub>4</sub> characteristic peak approximately 13 times higher than that of a conventional Si microcantilever. Moreover, the limit of detection was determined to be as low as 14.05 ppm. The clear separation of the CH<sub>4</sub> characteristic peak from the water and acetone vapor peaks also emphasized the sensor’s high selectivity. These findings highlight the superior sensitivity and selectivity of the proposed sensor, positioning it as a promising platform for CH<sub>4</sub> detection in industrial and environmental applications. |
| format | Article |
| id | doaj-art-cb467b73461e446aa5a6c09d8c2cb88a |
| institution | Kabale University |
| issn | 2227-9040 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | MDPI AG |
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| series | Chemosensors |
| spelling | doaj-art-cb467b73461e446aa5a6c09d8c2cb88a2025-01-24T13:26:52ZengMDPI AGChemosensors2227-90402025-01-01131810.3390/chemosensors13010008MOF(CuBDC)-Microcantilever IR Spectroscopy for Methane Sensing with High Sensitivity and SelectivitySeungwan Seo0Seok Bin Kwon1Yangkyu Park2Medical Device Development Center, OSONG Medical Innovation Foundation, Cheongju-si 28160, Chungcheongbuk-do, Republic of KoreaInorganic Light-Emitting Display Research Center, Korea Photonics Technology Institute (KOPTI), Gwangju 61007, Gyeonggi, Republic of KoreaDepartment of Mechatronics Engineering, Chonnam National University, 50 Daehak-ro, Yeosu 59626, Jeonnam, Republic of KoreaMethane, a greenhouse gas with 21 times the global warming potential of carbon dioxide, is increasingly subject to stringent emission regulations, driving the demand for high-performance methane sensors. This study proposes a novel IR spectroscopy technique based on a CuBDC-integrated microcantilever (CuBDC-microcantilever IR spectroscopy) for CH<sub>4</sub> sensing, offering exceptional sensitivity and selectivity. The metal-organic framework (MOF) CuBDC was synthesized on the microcantilever using a drop-and-dry method facilitated by an intense pulsed light technique. Characterization via scanning electron microscopy, X-ray diffraction, and Fourier transform infrared spectroscopy confirmed the successful formation of CuBDC on the microcantilever. The CuBDC-microcantilever IR spectroscopy demonstrated a significantly enhanced sensitivity, with a differential amplitude at the CH<sub>4</sub> characteristic peak approximately 13 times higher than that of a conventional Si microcantilever. Moreover, the limit of detection was determined to be as low as 14.05 ppm. The clear separation of the CH<sub>4</sub> characteristic peak from the water and acetone vapor peaks also emphasized the sensor’s high selectivity. These findings highlight the superior sensitivity and selectivity of the proposed sensor, positioning it as a promising platform for CH<sub>4</sub> detection in industrial and environmental applications.https://www.mdpi.com/2227-9040/13/1/8CuBDCmicrocantileverinfrared spectroscopymethane |
| spellingShingle | Seungwan Seo Seok Bin Kwon Yangkyu Park MOF(CuBDC)-Microcantilever IR Spectroscopy for Methane Sensing with High Sensitivity and Selectivity Chemosensors CuBDC microcantilever infrared spectroscopy methane |
| title | MOF(CuBDC)-Microcantilever IR Spectroscopy for Methane Sensing with High Sensitivity and Selectivity |
| title_full | MOF(CuBDC)-Microcantilever IR Spectroscopy for Methane Sensing with High Sensitivity and Selectivity |
| title_fullStr | MOF(CuBDC)-Microcantilever IR Spectroscopy for Methane Sensing with High Sensitivity and Selectivity |
| title_full_unstemmed | MOF(CuBDC)-Microcantilever IR Spectroscopy for Methane Sensing with High Sensitivity and Selectivity |
| title_short | MOF(CuBDC)-Microcantilever IR Spectroscopy for Methane Sensing with High Sensitivity and Selectivity |
| title_sort | mof cubdc microcantilever ir spectroscopy for methane sensing with high sensitivity and selectivity |
| topic | CuBDC microcantilever infrared spectroscopy methane |
| url | https://www.mdpi.com/2227-9040/13/1/8 |
| work_keys_str_mv | AT seungwanseo mofcubdcmicrocantileverirspectroscopyformethanesensingwithhighsensitivityandselectivity AT seokbinkwon mofcubdcmicrocantileverirspectroscopyformethanesensingwithhighsensitivityandselectivity AT yangkyupark mofcubdcmicrocantileverirspectroscopyformethanesensingwithhighsensitivityandselectivity |