Rahman Mohammed M, Hussain Mohammad Musarraf, Asiri Abdullah M
Chemistry Department, King Abdulaziz University, Jeddah, Saudi Arabia.
Center of Excellence for Advanced Material Research (CEAMR), King Abdulaziz University, Jeddah, Saudi Arabia.
PLoS One. 2017 Sep 22;12(9):e0177817. doi: 10.1371/journal.pone.0177817. eCollection 2017.
Iron oxide ornamented carbon nanotube nanocomposites (Fe3O4.CNT NCs) were prepared by a wet-chemical process in basic means. The optical, morphological, and structural characterizations of Fe3O4.CNT NCs were performed using FTIR, UV/Vis., FESEM, TEM; XEDS, XPS, and XRD respectively. Flat GCE had been fabricated with a thin-layer of NCs using a coating binding agent. It was performed for the chemical sensor development by a dependable I-V technique. Among all interfering analytes, 3-methoxyphenol (3-MP) was selective towards the fabricated sensor. Increased electrochemical performances for example elevated sensitivity, linear dynamic range (LDR) and continuing steadiness towards selective 3-MP had been observed with chemical sensor. The calibration graph found linear (R2 = 0.9340) in a wide range of 3-MP concentration (90.0 pM ~ 90.0 mM). The limit of detection and sensitivity were considered as 1.0 pM and 9×10-4 μAμM-1cm-2 respectively. The prepared of Fe3O4.CNT NCs by a wet-chemical progression is an interesting route for the development of hazardous phenolic sensor based on nanocomposite materials. It is also recommended that 3-MP sensor is exhibited a promising performances based on Fe3O4.CNT NCs by a facile I-V method for the significant applications of toxic chemicals for the safety of environmental and health-care fields.
采用湿化学法在碱性条件下制备了氧化铁修饰的碳纳米管纳米复合材料(Fe3O4.CNT NCs)。分别使用傅里叶变换红外光谱仪(FTIR)、紫外可见分光光度计(UV/Vis.)、场发射扫描电子显微镜(FESEM)、透射电子显微镜(TEM)、能量散射X射线光谱仪(XEDS)、X射线光电子能谱仪(XPS)和X射线衍射仪(XRD)对Fe3O4.CNT NCs进行了光学、形态和结构表征。使用涂层粘合剂在平面玻碳电极(GCE)上制备了一层薄薄的纳米复合材料。通过可靠的伏安法进行化学传感器的开发。在所有干扰分析物中,3-甲氧基苯酚(3-MP)对所制备的传感器具有选择性。化学传感器对选择性3-MP表现出增强的电化学性能,例如提高的灵敏度、线性动态范围(LDR)和持续稳定性。校准曲线在90.0 pM至90.0 mM的宽3-MP浓度范围内呈线性(R2 = 0.9340)。检测限和灵敏度分别为1.0 pM和9×10-4 μAμM-1cm-2。通过湿化学方法制备Fe3O4.CNT NCs是基于纳米复合材料开发有害酚类传感器的一条有趣途径。还建议基于Fe3O4.CNT NCs通过简便的伏安法制备的3-MP传感器在环境和医疗保健领域有毒化学品的安全重大应用中表现出有前景的性能。