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聚吡咯多壁碳纳米管复合层在利用表面等离子体共振技术检测汞、铅和铁离子中的应用。

Application of polypyrrole multi-walled carbon nanotube composite layer for detection of mercury, lead and iron ions using surface plasmon resonance technique.

作者信息

Sadrolhosseini Amir Reza, Noor A S M, Bahrami Afarin, Lim H N, Talib Zainal Abidin, Mahdi Mohd Adzir

机构信息

Wireless and Photonics Networks Research Center of Excellence (WiPNET), Faculty of Engineering Universiti Putra Malaysia, Serdang, Selangor, Malaysia.

Wireless and Photonics Networks Research Center of Excellence (WiPNET), Faculty of Engineering Universiti Putra Malaysia, Serdang, Selangor, Malaysia; Department of Computer and Communication Systems Engineering, Faculty of Engineering, Universiti Putra Malaysia, Serdang, Selangor, Malaysia.

出版信息

PLoS One. 2014 Apr 14;9(4):e93962. doi: 10.1371/journal.pone.0093962. eCollection 2014.

DOI:10.1371/journal.pone.0093962
PMID:24733263
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC3986072/
Abstract

Polypyrrole multi-walled carbon nanotube composite layers were used to modify the gold layer to measure heavy metal ions using the surface plasmon resonance technique. The new sensor was fabricated to detect trace amounts of mercury (Hg), lead (Pb), and iron (Fe) ions. In the present research, the sensitivity of a polypyrrole multi-walled carbon nanotube composite layer and a polypyrrole layer were compared. The application of polypyrrole multi-walled carbon nanotubes enhanced the sensitivity and accuracy of the sensor for detecting ions in an aqueous solution due to the binding of mercury, lead, and iron ions to the sensing layer. The Hg ion bonded to the sensing layer more strongly than did the Pb and Fe ions. The limitation of the sensor was calculated to be about 0.1 ppm, which produced an angle shift in the region of 0.3° to 0.6°.

摘要

聚吡咯多壁碳纳米管复合层用于修饰金层，以利用表面等离子体共振技术测量重金属离子。新型传感器用于检测痕量汞（Hg）、铅（Pb）和铁（Fe）离子。在本研究中，对聚吡咯多壁碳纳米管复合层和聚吡咯层的灵敏度进行了比较。聚吡咯多壁碳纳米管的应用提高了传感器检测水溶液中离子的灵敏度和准确性，这是由于汞、铅和铁离子与传感层结合。Hg离子与传感层的结合比Pb和Fe离子更强。该传感器的检测限经计算约为0.1 ppm，在0.3°至0.6°范围内产生角度偏移。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/669b/3986072/cadb21a609d6/pone.0093962.g013.jpg
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