对苯二酚
炭黑
X射线光电子能谱
傅里叶变换红外光谱
氢氧化物
儿茶酚
电化学
扫描电子显微镜
吸附
核化学
化学
纳米复合材料
检出限
电极
材料科学
无机化学
化学工程
纳米技术
有机化学
色谱法
物理化学
复合材料
天然橡胶
工程类
作者
Zhenhua Liu,Liu Qiangbing,Dan Liao,Jingang Yu,Xinyu Jiang
出处
期刊:Journal of The Electrochemical Society
[The Electrochemical Society]
日期:2022-11-01
卷期号:169 (11): 117501-117501
被引量:5
标识
DOI:10.1149/1945-7111/ac9b9d
摘要
We have developed a Ni-Al layered double hydroxide (LDH) and carbon black (CB) composite for the selective electrochemical detection of hydroquinone (HQ) and catechol (CT). LDH exhibits multiple active sites and high adsorption capacity for phenolic substances. CB demonstrates high conductivity and electrocatalytic capacity. The crystal structure was characterized by X-ray diffraction, establishing the successful synthesis of flower-like LDH, and the successful combination of LDH and CB. Fourier-transform infrared spectroscopy confirmed that the LDH surface contained sufficient hydroxyl groups to adsorb CT and HQ. The morphology of LDH/CB was characterized by scanning electron microscopy, and the composition and valence confirmed by X-ray photoelectron spectroscopy. The LDH/CB sensor delivered excellent performance in terms of sensing HQ and CT, with a wide detection range (0.1–150 μ M) and detection limits of 0.011 and 0.0091 μ M (DL = 3.3σ/S), respectively. The excellent performance of this sensor makes it a reliable choice for detecting HQ and CT in water.
科研通智能强力驱动
Strongly Powered by AbleSci AI