Multi-walled carbon nanotubes and metal–organic framework nanocomposites as novel hybrid electrode materials for the determination of nano-molar levels of lead in a lab-on-valve format

The Analyst ◽  
2013 ◽  
Vol 138 (17) ◽  
pp. 5113 ◽  
Author(s):  
Yang Wang ◽  
Yichun Wu ◽  
Jing Xie ◽  
Huali Ge ◽  
Xiaoya Hu
Keyword(s):  
Carbon Nanotubes ◽  
Electrode Materials ◽  
Metal Organic Framework ◽  
Multi Walled Carbon Nanotubes ◽  
Metal Organic ◽  
Walled Carbon Nanotubes ◽  
Organic Framework

scholarly journals A voltammetric sensor based on mixed proton-electron conducting composite including metal-organic framework JUK-2 for determination of citalopram

2021 ◽  
Vol 188 (6) ◽  
Author(s):  
Maria Madej ◽  
Dariusz Matoga ◽  
Klaudia Skaźnik ◽  
Radosław Porada ◽  
Bogusław Baś ◽  
...  
Keyword(s):  
Electrochemical Impedance ◽  
Metal Organic Framework ◽  
Voltammetric Sensor ◽  
Energy Dispersion Spectroscopy ◽  
Multi Walled Carbon Nanotubes ◽  
Metal Organic ◽  
Ft Ir ◽  
Walled Carbon Nanotubes ◽  
Organic Framework

Abstract A voltammetric sensor has been developed based on glassy carbon electrode (GCE) modification with nanocomposite consisting of manganese-based metal-organic framework (JUK-2), multi-walled carbon nanotubes (MWCNTs), and gold nanoparticles (AuNPs) for detection of citalopram (CIT). The composition and morphology of JUK-2-MWCNTs-AuNPs/GCE were characterized by X-ray powder diffraction (XRD), Fourier-transform infrared spectroscopy (FT-IR), energy dispersion spectroscopy (EDS), and scanning electron microscopy (SEM). The electrochemical properties investigated using electrochemical impedance spectroscopy (EIS) and cyclic voltammetry (CV) indicated that the fabricated hybrid material exhibits the properties of mixed ion-electron conductor (MIEC). Using staircase voltammetry (SCV), under optimized conditions, the fabricated sensor shows a linear response in three CIT concentration ranges, 0.05–1.0, 1.0–10.0 and 15.0–115.0 μmol L−1, with a detection limit of 0.011 μmol L−1. The JUK-2-MWCNTs-AuNPs/GCE was successfully employed for the determination of CIT in pharmaceutical, environmental waters, and biological samples with satisfactory recoveries (98.6–104.8%). Graphical abstract

scholarly journals Determination of chloropropanol with an imprinted electrochemical sensor based on multi-walled carbon nanotubes/metal–organic framework composites

RSC Advances ◽  
2021 ◽  
Vol 11 (30) ◽  
pp. 18468-18475
Author(s):  
Shuang Han ◽  
Yuxin Ding ◽  
Fu Teng ◽  
Aixin Yao ◽  
Qiuxue Leng
Keyword(s):  
Carbon Nanotubes ◽  
Electrochemical Sensor ◽  
Electrochemical Polymerization ◽  
Metal Organic Framework ◽  
Modified Electrodes ◽  
Multi Walled Carbon Nanotubes ◽  
Metal Organic ◽  
Walled Carbon Nanotubes ◽  
Selective Analysis

In this study, cMWCNT/MOF-199 composites were used as the modified electrodes, and a MIECS having specific recognition of 3-MCPD was prepared by electrochemical polymerization for selective analysis of 3-MCPD in foodstuffs.

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