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基于石墨烯纳米颗粒的硝酸根离子传感器特性

Graphene Nanoparticle-Based, Nitrate Ion Sensor Characteristics.

作者信息

Ahmadi Mohammad Taghi, Bodaghzadeh Morteza, Rahimian Koloor Seyed Saeid, Petrů Michal

机构信息

Nanotechnology Research Center, Nano-Physic Group, Physics Department, Urmia University, Urmia 5756151818, Iran.

Institute for Nanomaterials, Advanced Technologies and Innovation, Technical University of Liberec, Studentská 2, 461 17 Liberec, Czech Republic.

出版信息

Nanomaterials (Basel). 2021 Jan 9;11(1):150. doi: 10.3390/nano11010150.

DOI:10.3390/nano11010150
PMID:33435374
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC7827539/
Abstract

Gathering and sensing of nitrate ions in the environment due to the abundant use in industry and agriculture have become an important problem, which needs to be overcome. On the other hand, new materials such as carbon-based materials with unique properties have become an ideal choice in sensing technology. In this research, the high-density polyethylene (HDPE) polymer as a carbon source in the melted form was used and carbon nanoparticles in the form of a strand between two electrodes were analyzed. It was fabricated between copper electrodes by the pulsed arc discharge method. Subsequently, the constructed metal-nanoparticle-metal (MNM) contact was employed to recognize the nitrate ions. Therefore, NaNO, Pb(NO), Zn(NO), and NHNO samples as a usual pollutant of industrial and agricultural wastewater were examined. All nitrate compounds in ten different densities were tested and sensor I-V characteristic was investigated, which showed that all the aforesaid compounds were recognizable by the graphene nano-strand. Additionally, the proposed structure in the presence of ions was simulated and acceptable agreement between them was reported. Additionally, the proposed structure analytically was investigated, and a comparison study between the proposed model and measured results was carried out and realistic agreement reported.

摘要

由于工农业中硝酸盐离子的大量使用，环境中硝酸盐离子的收集和传感已成为一个需要克服的重要问题。另一方面，具有独特性能的新型材料，如碳基材料，已成为传感技术中的理想选择。在本研究中，使用熔融形式的高密度聚乙烯（HDPE）聚合物作为碳源，并分析了两个电极之间呈链状的碳纳米颗粒。它通过脉冲电弧放电法在铜电极之间制备。随后，利用构建的金属 - 纳米颗粒 - 金属（MNM）接触来识别硝酸盐离子。因此，对作为工农业废水常见污染物的NaNO₃、Pb(NO₃)₂、Zn(NO₃)₂和NH₄NO₃样品进行了检测。测试了十种不同浓度的所有硝酸盐化合物，并研究了传感器的I - V特性，结果表明上述所有化合物都能被石墨烯纳米链识别。此外，对存在离子时的所提出结构进行了模拟，并报告了它们之间的可接受一致性。另外，对所提出的结构进行了分析研究，在所提出的模型和测量结果之间进行了比较研究，并报告了实际的一致性。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2c45/7827539/6c22ae0be40f/nanomaterials-11-00150-g016.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2c45/7827539/6c22ae0be40f/nanomaterials-11-00150-g016.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2c45/7827539/21d217c0a7f8/nanomaterials-11-00150-g0A1.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2c45/7827539/913ef2a65524/nanomaterials-11-00150-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2c45/7827539/056e7289f2dd/nanomaterials-11-00150-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2c45/7827539/118ee8c5d345/nanomaterials-11-00150-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2c45/7827539/b0ebdbf7cc11/nanomaterials-11-00150-g010.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2c45/7827539/b050f241539f/nanomaterials-11-00150-g011.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2c45/7827539/58f127051c83/nanomaterials-11-00150-g012.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2c45/7827539/7801ce1707ab/nanomaterials-11-00150-g013.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2c45/7827539/dd69e511920c/nanomaterials-11-00150-g014.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2c45/7827539/020b51c38e51/nanomaterials-11-00150-g015.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2c45/7827539/6c22ae0be40f/nanomaterials-11-00150-g016.jpg

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