聚吡咯/DBSA/氮化硼三元复合材料的合成与应用--一种用于氨气检测的潜在化学传感器

IF 0.7 Q4 CHEMISTRY, MULTIDISCIPLINARY

Orbital: The Electronic Journal of Chemistry Pub Date : 2023-10-08 DOI:10.17807/orbital.v15i3.17875

Kavirajaa Pandian Sambasevam, Nur Farahin Suhaimi, Izyan Najwa Mohd Norsham, Syed Shahabuddin, M. Raoov, S. Baharin

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引用次数: 0

摘要

本研究展示了化学氧化聚合聚吡咯（PPy）、聚吡咯/氮化硼（PPy/BN）和聚吡咯/十二烷基苯磺酸/氮化硼（PPy/DBSA/BN）薄膜的自组装方法，用于氨（NH3）气体检测。使用衰减全反射傅立叶变换红外光谱（ATR-FTIR）、扫描电子显微镜（SEM）、X 射线衍射仪（XRD）和电导率测量法对 PPy、PPy/BN 和 PPy/DBSA/BN 薄膜进行了全面表征。ATR-FTIR 显示了 PPy/DBSA/BN 中存在的 PPy、BN 和 DBSA 的所有相关峰值。PPy/DBSA/BN 的扫描电子显微镜图像显示了良好的组织形态。在制备的聚合物薄膜中，PPy/DBSA/BN 的电导率最高，达到 4.771 x 10-6 S cm-1。所获得的表征结果与在 PPy/DBSA/BN 复合材料上进行的 NH3 气体传感器测量结果非常吻合。两者之间的线性相关系数为 R2 = 0.9916，表明两者关系密切。此外，PPy/DBSA/BN 薄膜的检测限 (LOD) 低至 5.8 ppm，超过了美国职业健康和安全管理局规定的 NH3 气体阈值。这表明该传感器对痕量 NH3 气体高度敏感。此外，PPy/DBSA/BN 薄膜还表现出卓越的可重复使用性，可循环使用多达 10 次而性能不会明显下降。在存在常见干扰物的情况下，该传感器还表现出对 NH3 气体的选择性。此外，该传感器还具有长期稳定性，可在 7 天内保持性能不变。所提出的自组装气体传感器在室温下检测 NH3 气体方面表现出了卓越的性能，使其成为工业应用的理想选择。

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Synthesis and Application of Polypyrrole/DBSA/Boron Nitride Ternary Composite as a Potential Chemical Sensor for Ammonia Gas Detection

The present study demonstrates the self-assembly method of chemical oxidative polymerization of polypyrrole (PPy), polypyrrole/boron nitride (PPy/BN), and polypyrrole/dodecylbenzene sulfonic acid/boron nitride (PPy/DBSA/BN) thin films for ammonia (NH3) gas detection. The PPy, PPy/BN, and PPy/DBSA/BN thin films were comprehensively characterized using Attenuated Total Reflectance Fourier-Transform Infrared Spectroscopy (ATR-FTIR), Scanning Electron Microscopy (SEM), X-ray diffractometry (XRD) and conductivity measurement. ATR-FTIR revealed all the pertinent peaks of PPy, BN, and DBSA present in the PPy/DBSA/BN. SEM images of PPy/DBSA/BN depict well-organized morphology. PPy/DBSA/BN recorded the highest conductivity of 4.771 x 10-6 S cm-1 among the prepared polymer thin films. The obtained characterization results are in good agreement with the NH3 gas sensor measurements conducted on the PPy/DBSA/BN composite. The linear correlation coefficient between the two was found to be R2 = 0.9916, indicating a strong relationship. Furthermore, the PPy/DBSA/BN thin film demonstrated a low limit of detection (LOD) of 5.8 ppm, surpassing the OSHA threshold value for NH3 gas. This suggests that the sensor is highly sensitive to trace amounts of NH3 gas. Moreover, the PPy/DBSA/BN thin film exhibited exceptional reusability, with the ability to be used for up to 10 cycles without a significant decrease in performance. The sensor also demonstrated selectivity towards NH3 gas in the presence of common interfering species. Additionally, it exhibited long-term stability, maintaining its performance over a period of 7 days. The proposed self-assembled gas sensor has showcased remarkable performance in detecting NH3 gas at room temperature, making it a promising candidate for industrial applications.

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来源期刊

Orbital: The Electronic Journal of Chemistry CHEMISTRY, MULTIDISCIPLINARY-

CiteScore

1.10

自引率

0.00%

发文量

审稿时长

10 weeks

期刊介绍： Orbital: The Electronic Journal of Chemistry is a quarterly scientific journal published by the Institute of Chemistry of the Universidade Federal de Mato Grosso do Sul, Brazil. Original contributions (in English) are welcome, which focus on all areas of Chemistry and their interfaces with Pharmacy, Biology, and Physics. Neither authors nor readers have to pay fees. The journal has an editorial team of scientists drawn from regions throughout Brazil and world, ensuring high standards for the texts published. The following categories are available for contributions: 1. Full papers 2. Reviews 3. Papers on Education 4. History of Chemistry 5. Short communications 6. Technical notes 7. Letters to the Editor The Orbital journal also publishes a number of special issues in addition to the regular ones. The central objectives of Orbital are threefold: (i) to provide the general scientific community (at regional, Brazilian, and worldwide levels) with a formal channel for the communication and dissemination of the Chemistry-related literature output by publishing original papers based on solid research and by reporting contributions which further knowledge in the field; (ii) to provide the community with open, free access to the full content of the journal, and (iii) to constitute a valuable channel for the dissemination of Chemistry-related investigations.