3-Methoxyphenol chemical sensor fabrication with Ag2O/CB nanocomposites,New Journal of Chemistry

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3-Methoxyphenol chemical sensor fabrication with Ag2O/CB nanocomposites
New Journal of Chemistry ( IF 2.7 ) Pub Date : 2020/01/09 , DOI: 10.1039/c9nj05982b
Mohammed M. Rahman _{1,

2,

3,

4,

5} , M. M. Alam _{6,

7,

8,

9} , Abdullah M. Asiri _{1,

2,

3,

4,

5} , Jamal Uddin _{10,

11,

12,

13}

Affiliation

In this approach, low-dimensional silver oxide decorated carbon black nanocomposites (Ag₂O/CB NCs) were synthesized by a facile wet-chemical process at low temperature. The prepared composites were characterized by Fourier-transform infrared spectroscopy (FTIR), ultraviolet–visible spectroscopy (UV/vis), transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS), field emission scanning electron microscopy (FESEM) and X-ray powder diffraction (XRD). A thin layer of Ag₂O/CB NC was deposited on the glassy carbon electrode (GCE) with a conducting binder to produce the working electrode of a chemical sensor. The fabricated chemical sensor was used for the successive in vitro detection of 3-methoxyphenol (3-MP) by an electrochemical method at a lower applied potential. The sensor response towards 3-MP is linear in a logarithmic scale over a large concentration range (0.09 nM to 9.0 μM). The analytical parameters of the sensor, including good sensitivity (45.7278 μA μM⁻¹ cm⁻²), low detection limit (LOD = 9.73 ± 0.49 pM at a signal to noise ratio of 3), good reliability, good reproducibility, and long-term stability were examined. Therefore, the proposed chemical sensor based on Ag₂O/CB NCs/binder/GCE may be a promising sensitive chemical sensor in reliable electrochemical approaches for the broad-scale detection of hazardous and carcinogenic chemicals in the health care and environmental sectors.

中文翻译：

Ag2O / CB纳米复合材料制备3-甲氧基苯酚化学传感器

通过这种方法，通过一种简便的低温湿化学方法，合成了低维氧化银装饰的炭黑纳米复合材料（Ag ₂ O / CB NCs）。制备的复合材料通过傅里叶变换红外光谱（FTIR），紫外可见光谱（UV / vis），透射电子显微镜（TEM），X射线光电子光谱（XPS），场发射扫描电子显微镜（FESEM）和X射线粉末衍射（XRD）。用导电粘合剂在玻璃碳电极（GCE）上沉积一薄层Ag ₂ O / CB NC，以生产化学传感器的工作电极。所制造的化学传感器用于连续的体外在较低的施加电势下通过电化学方法检测3-甲氧基苯酚（3-MP）。在较大浓度范围（0.09 nM至9.0μM）上，对3-MP的传感器响应呈对数线性。传感器的分析参数包括良好的灵敏度（45.7278μAμM ^-1 cm ^-2），较低的检测限（信噪比为3时LOD = 9.73±0.49 pM），良好的可靠性，良好的重现性和长的检查了长期稳定性。因此，基于Ag ₂ O / CB NCs / binder / GCE的化学传感器在可靠的电化学方法中可能是一种有前途的灵敏化学传感器，可广泛用于医疗保健和环境领域的危险和致癌化学物质检测。

更新日期：2020-02-10

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