Detection of Dimethyl Methyl Phosphonate by Silica Molecularly Imprinted Materials
In recent years, the increasing severity of chemical warfare agent threats to public safety has led to a growing demand for gas sensors capable of detecting these compounds. However, gas sensors used for the detection of chemical warfare agents must overcome limitations in sensitivity, selectivity,...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-10-01
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| Series: | Nanomaterials |
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| Online Access: | https://www.mdpi.com/2079-4991/13/21/2871 |
| _version_ | 1797631476355825664 |
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| author | Xuming Wang Xin Li Qiang Wu Yubin Yuan Weihua Liu Chuanyu Han Xiaoli Wang |
| author_facet | Xuming Wang Xin Li Qiang Wu Yubin Yuan Weihua Liu Chuanyu Han Xiaoli Wang |
| author_sort | Xuming Wang |
| collection | DOAJ |
| description | In recent years, the increasing severity of chemical warfare agent threats to public safety has led to a growing demand for gas sensors capable of detecting these compounds. However, gas sensors used for the detection of chemical warfare agents must overcome limitations in sensitivity, selectivity, and reaction speed. This paper presents a sensitive material and a surface acoustic gas sensor for detecting dimethyl methyl phosphonate. The results demonstrate that the sensor exhibits good selectivity and could detect 80 ppb of dimethyl methyl phosphonate within 1 min. As an integral component of the sensor, the microstructure and adsorption mechanism of silica molecular imprinting material were studied in detail. The results show that the template molecule could significantly affect the pore volume, specific surface area, and hydroxyl density of mesoporous materials. These properties further affect the performance of the sensor. This study provides a valuable case study for the design of sensitive materials. |
| first_indexed | 2024-03-11T11:24:04Z |
| format | Article |
| id | doaj.art-25c632fe4352496681fa2e859fb78b20 |
| institution | Directory Open Access Journal |
| issn | 2079-4991 |
| language | English |
| last_indexed | 2024-03-11T11:24:04Z |
| publishDate | 2023-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Nanomaterials |
| spelling | doaj.art-25c632fe4352496681fa2e859fb78b202023-11-10T15:09:14ZengMDPI AGNanomaterials2079-49912023-10-011321287110.3390/nano13212871Detection of Dimethyl Methyl Phosphonate by Silica Molecularly Imprinted MaterialsXuming Wang0Xin Li1Qiang Wu2Yubin Yuan3Weihua Liu4Chuanyu Han5Xiaoli Wang6Department of Microelectronics, Xi’an Jiaotong University, Xi’an 710049, ChinaDepartment of Microelectronics, Xi’an Jiaotong University, Xi’an 710049, ChinaDepartment of Microelectronics, Xi’an Jiaotong University, Xi’an 710049, ChinaDepartment of Microelectronics, Xi’an Jiaotong University, Xi’an 710049, ChinaDepartment of Microelectronics, Xi’an Jiaotong University, Xi’an 710049, ChinaDepartment of Microelectronics, Xi’an Jiaotong University, Xi’an 710049, ChinaSchool of Physics, Xi’an Jiaotong University, Xi’an 710049, ChinaIn recent years, the increasing severity of chemical warfare agent threats to public safety has led to a growing demand for gas sensors capable of detecting these compounds. However, gas sensors used for the detection of chemical warfare agents must overcome limitations in sensitivity, selectivity, and reaction speed. This paper presents a sensitive material and a surface acoustic gas sensor for detecting dimethyl methyl phosphonate. The results demonstrate that the sensor exhibits good selectivity and could detect 80 ppb of dimethyl methyl phosphonate within 1 min. As an integral component of the sensor, the microstructure and adsorption mechanism of silica molecular imprinting material were studied in detail. The results show that the template molecule could significantly affect the pore volume, specific surface area, and hydroxyl density of mesoporous materials. These properties further affect the performance of the sensor. This study provides a valuable case study for the design of sensitive materials.https://www.mdpi.com/2079-4991/13/21/2871gas sensormolecularly imprinted materialsdimethyl methyl phosphonatesurface acoustic wave |
| spellingShingle | Xuming Wang Xin Li Qiang Wu Yubin Yuan Weihua Liu Chuanyu Han Xiaoli Wang Detection of Dimethyl Methyl Phosphonate by Silica Molecularly Imprinted Materials Nanomaterials gas sensor molecularly imprinted materials dimethyl methyl phosphonate surface acoustic wave |
| title | Detection of Dimethyl Methyl Phosphonate by Silica Molecularly Imprinted Materials |
| title_full | Detection of Dimethyl Methyl Phosphonate by Silica Molecularly Imprinted Materials |
| title_fullStr | Detection of Dimethyl Methyl Phosphonate by Silica Molecularly Imprinted Materials |
| title_full_unstemmed | Detection of Dimethyl Methyl Phosphonate by Silica Molecularly Imprinted Materials |
| title_short | Detection of Dimethyl Methyl Phosphonate by Silica Molecularly Imprinted Materials |
| title_sort | detection of dimethyl methyl phosphonate by silica molecularly imprinted materials |
| topic | gas sensor molecularly imprinted materials dimethyl methyl phosphonate surface acoustic wave |
| url | https://www.mdpi.com/2079-4991/13/21/2871 |
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