Bimetallic phosphate interface for ultrasensitive detection of 2,4,6-trichlorophenol
COLLOID AND POLYMER SCIENCE, 2026 (SCI-Expanded, Scopus)
- Yayın Türü: Makale / Tam Makale
- Basım Tarihi: 2026
- Doi Numarası: 10.1007/s00396-026-05689-4
- Dergi Adı: COLLOID AND POLYMER SCIENCE
- Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Chemical Abstracts Core, Chimica, Compendex, EMBASE, INSPEC, Academic Search Ultimate (EBSCO), Engineering Source (EBSCO), Materials Science & Engineering Collection (ProQuest), Technology Collection (ProQuest)
- İstanbul Üniversitesi Adresli: Evet
Özet
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 & micro;M and 0.5-12 & micro;M, 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.