铌酸钾
材料科学
电极
深共晶溶剂
检出限
循环伏安法
共晶体系
线性扫描伏安法
电化学
钙钛矿(结构)
双酚A
化学工程
光电子学
化学
复合材料
色谱法
铁电性
环氧树脂
工程类
电介质
物理化学
合金
作者
Thangavelu Sakthi Priya,Tse-Wei Chen,Shen-Ming Chen,Thangavelu Kokulnathan,Bih-Show Lou,Wedad A. Al-onazi,Amal M Al-Mohaimeed,Mohamed S Elshikh,Jaysan Yu
出处
期刊:Chemosphere
[Elsevier]
日期:2023-01-27
卷期号:318: 137948-137948
标识
DOI:10.1016/j.chemosphere.2023.137948
摘要
This study demonstrates a hydrothermal method to prepare perovskite-type potassium niobate (KNbO3) through deep eutectic solvent (DES), which is further used as an electrode material for the determination of bisphenol A (BPA). The as-synthesized KNbO3 was systematically characterized by different microscopic and spectroscopic techniques. The KNbO3-modified electrode demonstrates excellent electrocatalytic activity for BPA compared to the pristine electrode. The enhanced performance of the proposed sensor is attributed to the numerous active sites, large electrochemical surface area, high electrical conductivity, and rapid electron transfer. The fabricated sensor shows a wide detection range (0.01-84.3 μM), a low limit of detection (0.003 μM), a high sensitivity (0.51 μA μM-1 cm-2), and good anti-interference abilities towards the BPA detection by linear sweep voltammetry method. Besides, it was successfully applied to determining BPA in food samples, demonstrating good practicability. This design paves a new way to fabricate efficient electrode material for various electrochemical applications using a DES medium.
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