Polypyrrole-Chitosan-CaFe2O4 Layer Sensor for Detection of Anionic and Cationic Dye Using Surface Plasmon Resonance

Amir Reza Sadrolhosseini,Kamyar Shameli,Suhaidi Shafie,Pooria Moozarm Nia,Mohd Adzir Mahdi

doi:10.1155/2020/3489509

Amir Reza Sadrolhosseini, Kamyar Shameli + Show 3 more

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https://doi.org/10.1155/2020/3489509

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Abstract

A polypyrrole-chitosan-calcium ferrite nanocomposite was prepared using the electrodeposition method. The prepared layer was characterized by using Fourier transform infrared spectroscopy, the X-ray diffraction technique, and field emission electron microscopy. The thickness of the thin layers was in the range of 2.8 nm to 59.5 nm, and the refractive index of the composite layer was in the range of 1.66131+0.156i to 1.62734+0.167i. Detection and removal of cationic and anionic dyes, such as methylene blue and methylene orange, are subject of great interest for protecting environmental water. The layer composite was used to detect methylene orange and methylene blue using the surface plasmon resonance technique. Consequently, the polypyrrole-chitosan-calcium-ferrite composite layer interacted with the anionic and cationic dyes. The resonance angle shift for the detection of the cationic dye was larger than the resonance angle shift for the anionic dye. The sensor limit was achieved from a sensogram at about 0.01 ppm.

Highlights

Methylene orange (MO) and methylene blue (MB) are types of dye materials and they are important and major pollutants of certain industrial effluents [1]
The composite layer was characterized with analytical methods including the Fourier transfer infrared spectroscopy (FT-IR), field effect scanning electron microscopy (FE-SEM), and X-ray diffraction spectroscopy (XRD) techniques, and they confirmed the CaFe2O4 was formed in the polypyrrole and chitosan composite
The refractive index of each layer was measured using the surface plasmon resonance (SPR) technique prior to them use for detection of MO and MB

Summary

Introduction

Methylene orange (MO) and methylene blue (MB) are types of dye materials and they are important and major pollutants of certain industrial effluents [1]. Zinc, platinum, and aluminum were used as cathode material [14] to degrade MO and MB using an electrooxidation technique These techniques have limitations, in terms of achieving complete degradation of the dyes in wastewater or environmental areas. Nanoparticles were used to enhance the physical, biological, and chemical properties of absorbance composites and methods for degradation and decolorization of wastewater [16].

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