Detection of Napropamide by microwave resonator sensor using a carbon nanotube – polypyrrole-chitosan layer

  • سال انتشار: 1395
  • محل انتشار: فصلنامه پیشرفت ها در فناوری محیط زیست، دوره: 2، شماره: 4
  • کد COI اختصاصی: JR_AET-2-4_003
  • زبان مقاله: انگلیسی
  • تعداد مشاهده: 372
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نویسندگان

Ahmad Mohammadi

Department of Electrical and Computer Engineering, Buein Zahra Technical University, Buein Zahra, Qazvin, Iran

Amir Reza Sadrolhosseini

Materials Processing and Technology Laboratory (MPTL), Nanomaterials and Nanotechnology Group, Institute of Advanced Technology (ITMA), Universiti Putra Malaysia, Malaysia

Hamid Shoja Nazeri

School of Information and Technology, Federation University, Gippsland Campus, Australia

چکیده

This paper presents the design and fabrication of a proximity coupled feed disk resonator coated with multi walled carbon nanotubes (MWCNTs) and polypyrrolechitosan (PPy-CHI) layers as a napropamide sensor. Computer Simulation Technology (CST) microwave studio was used to obtain the best design of the disk resonator and feed line position in a 5 GHz resonant frequency. Also, MWCNTs-PPy-CHI layers were coated on the disk resonator using electric field deposition, and the chemical interaction between the sensing layer and napropamide was investigated via a Fourier transform infrared spectroscopy (FTIR). The evaluation of the system was performed using different concentrations of commercial napropamide and pure napropamide at room temperature (25⁰C). The experimental results proved that the proximity coupled feed disk resonator that was coated with MWCNTs-PPy-CHI layers was simple, fast (Measurement- time=5 seconds), accurate (as low as 0.1 ppm), and low cost; it also has the potential to be produced as a portable instrumentation system for detecting napropamide in water and soil.

کلیدواژه ها

Napropamide sensor ،Carbon nanotube sensor ،Microwave sensor ،Polypyrrole-Chitosan

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