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 to . 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.

中文翻译：

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聚吡咯-壳聚糖-CaFe2O4层传感器，用于利用表面等离子体共振检测阴离子和阳离子染料

使用电沉积方法制备了聚吡咯-壳聚糖-铁酸钙纳米复合材料。通过使用傅立叶变换红外光谱，X射线衍射技术和场发射电子显微镜对所制备的层进行表征。薄层的厚度在2.8nm至59.5nm的范围内，并且复合层的折射率在1nm至3nm的范围内。 至 。阳离子和阴离子染料（例如亚甲基蓝和亚甲基橙）的检测和去除对于保护环境水具有重大意义。使用表面等离子体共振技术，将层复合材料用于检测亚甲基橙和亚甲基蓝。因此，聚吡咯-壳聚糖-钙-铁氧体复合层与阴离子和阳离子染料相互作用。用于检测阳离子染料的共振角位移大于用于阴离子染料的共振角位移。传感器极限是从约0.01 ppm的传感图获得的。