Synthesis of Graphene Oxide-Coupled CoNi Bimetallic MOF Nanocomposites for the Simultaneous Analysis of Catechol and Hydroquinone
Overview
Affiliations
Herein, a three-dimensional flower-like cobalt-nickel bimetallic metal-organic framework (CoNi-MOF) coupled with two-dimensional graphene oxide (GO) nanocomposites was successfully synthesized for the selective and simultaneous electrochemical determination of catechol (CC) and hydroquinone (HQ). The three-dimensional flower-like structure of the CoNi-MOF/GO nanocomposite has a multilayer structure and a large surface area, which greatly improves its electrocatalytic activity towards CC and HQ. Differential pulse voltammetry (DPV) results showed that the peak-to-peak separation of CC (0.223 V) and HQ (0.120 V) was 103 mV at a CoNi-MOF/GO modified glassy carbon electrode (CoNi-MOF/GO/GCE), suggesting that the proposed modified electrode can selectively and simultaneously determine them. Under optimal conditions, the CoNi-MOF/GO/GCE showed an excellent analytical performance for the simultaneous determination of CC and HQ, including a wide linear range (0.1-100 μM), low detection limit (0.04 μM for HQ and 0.03 μM for CC) and high anti-interference ability. As expected, the developed modified electrode has been used to analyze CC and HQ in river water, with acceptable results.
Tajik S, Shams P, Beitollahi H, Garkani Nejad F Biosensors (Basel). 2024; 14(5).
PMID: 38785703 PMC: 11117627. DOI: 10.3390/bios14050229.
Stankovic V, durdic S, Ognjanovic M, Zlatic G, Stankovic D Sensors (Basel). 2024; 24(2).
PMID: 38276396 PMC: 10818471. DOI: 10.3390/s24020705.
Patil S, Narwade V, Sontakke K, Hianik T, Shirsat M Sensors (Basel). 2024; 24(2).
PMID: 38257438 PMC: 10818963. DOI: 10.3390/s24020346.
Levshakova A, Kaneva M, Borisov E, Panov M, Shmalko A, Nedelko N Materials (Basel). 2023; 16(22).
PMID: 38005154 PMC: 10673110. DOI: 10.3390/ma16227225.