High Sensitivity of Ammonia Sensor through 2D Black Phosphorus/Polyaniline Nanocomposite
Recently, as a two-dimensional (2D) material, black phosphorous (BP) has attracted more and more attention. However, few efforts have been made to investigate the BP/polyaniline (PANI) nanocomposite for ammonia (NH<sub>3</sub>) gas sensors. In this work, the BP/PANI nanocomposite as a no...
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| Format: | Article |
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MDPI AG
2021-11-01
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| Series: | Nanomaterials |
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| Online Access: | https://www.mdpi.com/2079-4991/11/11/3026 |
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| author | Zuquan Wu Lei Liang Shibu Zhu Yifan Guo Yao Yao Yong Yang Shifu Gu Zuowan Zhou |
| author_facet | Zuquan Wu Lei Liang Shibu Zhu Yifan Guo Yao Yao Yong Yang Shifu Gu Zuowan Zhou |
| author_sort | Zuquan Wu |
| collection | DOAJ |
| description | Recently, as a two-dimensional (2D) material, black phosphorous (BP) has attracted more and more attention. However, few efforts have been made to investigate the BP/polyaniline (PANI) nanocomposite for ammonia (NH<sub>3</sub>) gas sensors. In this work, the BP/PANI nanocomposite as a novel sensing material for NH<sub>3</sub> detection, has been synthesized via in situ chemical oxidative polymerization, which is then fabricated onto the interdigitated transducer (IDTs). The electrical properties of the BP/PANI thin film are studied in a large detection range from 1 to 4000 ppm, such as conduction mechanism, response, reproducibility, and selectivity. The experimental result indicates that the BP/PANI sensor shows higher sensitivity and larger detection range than that of PANI. The BP added into PANI, that may enlarge the specific surface area, obtain the special trough structure for gas channels, and form the <i>p–π</i> conjugation system and <i>p–p</i> isotype heterojunctions, which are beneficial to increase the response of BP/PANI to NH<sub>3</sub> sensing. Meanwhile, in order to support the discussion result, the structure and morphology of the BP/PANI are respectively measured by Fourier transform infrared spectroscopy (FTIR), ultraviolet-visible spectroscopy (UV−vis), transmission electron microscopy (TEM), and field emissions scanning electron microscopy (SEM). Moreover, the sensor shows good reproducibility, and fast response and recovery behavior, on NH<sub>3</sub> sensing. In addition, this route may offer the advantages of an NH<sub>3</sub> sensor, which are of simple structure, low cost, easy to assemble, and operate at room temperature. |
| first_indexed | 2024-03-10T05:13:04Z |
| format | Article |
| id | doaj.art-96d4700aa9ea407ba2aabb8f139ce6db |
| institution | Directory Open Access Journal |
| issn | 2079-4991 |
| language | English |
| last_indexed | 2024-03-10T05:13:04Z |
| publishDate | 2021-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Nanomaterials |
| spelling | doaj.art-96d4700aa9ea407ba2aabb8f139ce6db2023-11-23T00:42:03ZengMDPI AGNanomaterials2079-49912021-11-011111302610.3390/nano11113026High Sensitivity of Ammonia Sensor through 2D Black Phosphorus/Polyaniline NanocompositeZuquan Wu0Lei Liang1Shibu Zhu2Yifan Guo3Yao Yao4Yong Yang5Shifu Gu6Zuowan Zhou7School of Electrical Engineering and Electronic Information, Xihua University, Chengdu 611743, ChinaSchool of Electrical Engineering and Electronic Information, Xihua University, Chengdu 611743, ChinaKey Laboratory of Advanced Technologies of Materials (Ministry of Education), School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, ChinaKey Laboratory of Advanced Technologies of Materials (Ministry of Education), School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, ChinaSchool of Automation Engineering, University of Electronic Science and Technology of China, Chengdu 610054, ChinaSchool of Electrical Engineering and Electronic Information, Xihua University, Chengdu 611743, ChinaSchool of Electrical Engineering and Electronic Information, Xihua University, Chengdu 611743, ChinaKey Laboratory of Advanced Technologies of Materials (Ministry of Education), School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, ChinaRecently, as a two-dimensional (2D) material, black phosphorous (BP) has attracted more and more attention. However, few efforts have been made to investigate the BP/polyaniline (PANI) nanocomposite for ammonia (NH<sub>3</sub>) gas sensors. In this work, the BP/PANI nanocomposite as a novel sensing material for NH<sub>3</sub> detection, has been synthesized via in situ chemical oxidative polymerization, which is then fabricated onto the interdigitated transducer (IDTs). The electrical properties of the BP/PANI thin film are studied in a large detection range from 1 to 4000 ppm, such as conduction mechanism, response, reproducibility, and selectivity. The experimental result indicates that the BP/PANI sensor shows higher sensitivity and larger detection range than that of PANI. The BP added into PANI, that may enlarge the specific surface area, obtain the special trough structure for gas channels, and form the <i>p–π</i> conjugation system and <i>p–p</i> isotype heterojunctions, which are beneficial to increase the response of BP/PANI to NH<sub>3</sub> sensing. Meanwhile, in order to support the discussion result, the structure and morphology of the BP/PANI are respectively measured by Fourier transform infrared spectroscopy (FTIR), ultraviolet-visible spectroscopy (UV−vis), transmission electron microscopy (TEM), and field emissions scanning electron microscopy (SEM). Moreover, the sensor shows good reproducibility, and fast response and recovery behavior, on NH<sub>3</sub> sensing. In addition, this route may offer the advantages of an NH<sub>3</sub> sensor, which are of simple structure, low cost, easy to assemble, and operate at room temperature.https://www.mdpi.com/2079-4991/11/11/3026black phosphorus/PANI nanocompositethin filmgas sensorammonia |
| spellingShingle | Zuquan Wu Lei Liang Shibu Zhu Yifan Guo Yao Yao Yong Yang Shifu Gu Zuowan Zhou High Sensitivity of Ammonia Sensor through 2D Black Phosphorus/Polyaniline Nanocomposite Nanomaterials black phosphorus/PANI nanocomposite thin film gas sensor ammonia |
| title | High Sensitivity of Ammonia Sensor through 2D Black Phosphorus/Polyaniline Nanocomposite |
| title_full | High Sensitivity of Ammonia Sensor through 2D Black Phosphorus/Polyaniline Nanocomposite |
| title_fullStr | High Sensitivity of Ammonia Sensor through 2D Black Phosphorus/Polyaniline Nanocomposite |
| title_full_unstemmed | High Sensitivity of Ammonia Sensor through 2D Black Phosphorus/Polyaniline Nanocomposite |
| title_short | High Sensitivity of Ammonia Sensor through 2D Black Phosphorus/Polyaniline Nanocomposite |
| title_sort | high sensitivity of ammonia sensor through 2d black phosphorus polyaniline nanocomposite |
| topic | black phosphorus/PANI nanocomposite thin film gas sensor ammonia |
| url | https://www.mdpi.com/2079-4991/11/11/3026 |
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