Bimetallic phosphate interface for ultrasensitive detection of 2,4,6-trichlorophenol

IF 2.9 4区化学 Q3 CHEMISTRY, PHYSICAL

Colloid and Polymer Science Pub Date : 2026-07-27 DOI:10.1007/s00396-026-05689-4

Bharat Prasad Sharma, Qingyun Xiong, Razium Ali Soomro, Amal M. Alkhudaydi, Mohamed M. Ibrahim, Zeinhom M. El-Bahy, Jinping Xiong, Selcan Karakuş

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引用次数: 0

Abstract

Environmental phenolic pollutants such as 2,4,6-trichlorophenol (TCP) require sensitive detection because of their persistence and toxicity. Herein, sonochemically synthesized NiMn(PO₄)₂ (NMPO) micro-flakes were developed as an electrochemical interface for TCP determination. The hierarchical micro-flake morphology and synergistic Ni/Mn redox centers promote TCP adsorption, interfacial electron transfer, and electrocatalytic oxidation. Compared with bare GCE, NMPO/GCE exhibited a markedly enhanced TCP oxidation response and reduced charge-transfer resistance. Under optimized conditions, differential pulse voltammetry showed two linear ranges of 0.001–0.020 µM and 0.5–12 µM, with a detection limit of 0.7 nM. The sensor demonstrated good repeatability (RSD < 2%), reproducibility (RSD = 1.4%), operational stability (97.1% signal retention), and selectivity toward TCP over common interferents. Spiked human urine analysis gave recoveries of 94–104%, confirming practical applicability. These results highlight NMPO micro-flakes as a simple and reliable platform for ultrasensitive TCP monitoring.

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用于超灵敏检测2,4,6-三氯苯酚的双金属磷酸盐界面

环境酚类污染物如2,4,6-三氯苯酚（TCP）由于其持久性和毒性，需要灵敏的检测。本文采用声化学方法制备了纳米镍（PO4）2 （NMPO）微片，作为测定TCP的电化学界面。分层微片形态和协同的Ni/Mn氧化还原中心促进TCP吸附、界面电子转移和电催化氧化。与裸GCE相比，NMPO/GCE表现出明显增强的TCP氧化响应和降低的电荷转移电阻。在优化条件下，差分脉冲伏安法在0.001 ~ 0.020µM和0.5 ~ 12µM两个线性范围内，检出限为0.7 nM。该传感器具有良好的重复性（RSD = 2%）、再现性（RSD = 1.4%）、操作稳定性（97.1%的信号保留）和对TCP的选择性。加标人尿分析加标回收率为94-104%，证实了该方法的实用性。这些结果表明NMPO微片是一种简单可靠的超灵敏TCP监控平台。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Colloid and Polymer Science 化学-高分子科学

CiteScore

4.60

自引率

4.20%

发文量

111

审稿时长

2.2 months

期刊介绍： Colloid and Polymer Science - a leading international journal of longstanding tradition - is devoted to colloid and polymer science and its interdisciplinary interactions. As such, it responds to a demand which has lost none of its actuality as revealed in the trends of contemporary materials science.