检出限
电化学
锌
材料科学
电极
电催化剂
电化学气体传感器
选择性
复合数
无机化学
核化学
纳米技术
化学
色谱法
复合材料
冶金
催化作用
有机化学
物理化学
作者
Faheem Ahmed,Thangavelu Kokulnathan,Ahmad Umar,Sheikh A. Akbar,Shalendra Kumar,Nagih M. Shaalan,Nishat Arshi,Mohd Gulfam Alam,Abdullah Aljaafari,Adil Alshoaibi
出处
期刊:Biosensors
日期:2022-10-10
卷期号:12 (10): 856-856
被引量:10
摘要
Herein, we present an electrocatalyst constructed by zinc oxide hexagonal prisms/phosphorus-doped carbon nitride wrinkles (ZnO HPs/P-CN) prepared via a facile sonochemical method towards the detection of nitrofurantoin (NF). The ZnO HPs/P-CN-sensing platform showed amplified response and low-peak potential compared with other electrodes. The exceptional electrochemical performance could be credited to ideal architecture, rapid electron/charge transfer, good conductivity, and abundant active sites in the ZnO HPs/P-CN composite. Resulting from these merits, the ZnO HPs/P-CN-modified electrode delivered rapid response (2 s), a low detection limit (2 nM), good linear range (0.01-111 µM), high sensitivity (4.62 µA µM-1 cm2), better selectivity, decent stability (±97.6%), and reproducibility towards electrochemical detection of NF. We further demonstrated the feasibility of the proposed ZnO HPs/P-CN sensor for detecting NF in samples of water and human urine. All the above features make our proposed ZnO HPs/P-CN sensor a most promising probe for detecting NF in natural samples.
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