使用纳米 FeO/离子液体糊电极作为电化学传感器测定 4-氯苯酚存在下的 2-苯苯酚。
The determination of 2-phenylphenol in the presence of 4-chlorophenol using nano-FeO/ionic liquid paste electrode as an electrochemical sensor.
机构信息
Department of Chemical Engineering, Laboratory of Nanotechnology, Quchan University of Technology, Quchan, Iran; Department of Chemical Sciences, University of Johannesburg, South Africa.
Department of Chemical Sciences, University of Johannesburg, South Africa.
出版信息
J Colloid Interface Sci. 2019 Oct 15;554:603-610. doi: 10.1016/j.jcis.2019.07.047. Epub 2019 Jul 17.
A voltammetric sensor was fabricated for the determination of 2-phenylphenol (2-PP) as a water pollutant. The sensor was prepared by modifying carbon paste electrode (CPE) with a composite of FeO nanoparticles (FeO-NPs) and ionic liquid (n-hexyl-3-methylimidazolium hexafluorophosphate; (HMPF)). The FeO-NPs was synthesized by co-precipitation and characterized by FESEM, MAP, AFM and XRD methods. The presence of FeO-NPs and HMPF in CPE improved the catalytic activity of the electrode towards the oxidation of 2-PP. The FeO-NPs/HMPF/CPE displayed two well separated oxidation signals in a solution containing 2-PP and 4-chlorophenol (4-CP). A peak separation of 380 mV was obtained, which implies that the sensor can be used for the simultaneous determination of the two water contaminants. The FeO-NPs/HMPF/CPE displayed a linear dynamic range 0.01-520 μM for 2-PP. The sensor showed good recovery data for the analysis of 2-PP and 4-CL in orange rind, lemon rind and different water samples.
一种用于测定作为水污染物质的 2- 苯苯酚（2-PP）的伏安传感器被制备。该传感器通过将碳糊电极（CPE）用 FeO 纳米颗粒（FeO-NPs）和离子液体（n- 己基-3- 甲基咪唑六氟磷酸盐；（HMPF））的复合物进行修饰来制备。通过共沉淀合成了 FeO-NPs，并通过 FESEM、MAP、AFM 和 XRD 方法进行了表征。CPE 中存在 FeO-NPs 和 HMPF 提高了电极对 2-PP 氧化的催化活性。在含有 2-PP 和 4- 氯苯酚（4-CP）的溶液中，FeO-NPs/HMPF/CPE 显示出两个分离良好的氧化信号。获得了 380 mV 的峰分离，这意味着该传感器可用于同时测定这两种水污染物。FeO-NPs/HMPF/CPE 对 2-PP 的线性动态范围为 0.01-520 μM。该传感器在分析橙皮、柠檬皮和不同水样中的 2-PP 和 4-CL 时显示出良好的回收率数据。
Zotero 插件