An electrochemical sensor for warfarin determination based on covalent immobilization of quantum dots onto carboxylated multiwalled carbon nanotubes and chitosan composite film modified electrode

2015 ◽  
Vol 57 ◽  
pp. 77-87 ◽  
Author(s):  
Mohammad Bagher Gholivand ◽  
Leila Mohammadi-Behzad
Keyword(s):  
Carbon Nanotubes ◽  
Quantum Dots ◽  
Composite Film ◽  
Electrochemical Sensor ◽  
Multiwalled Carbon Nanotubes ◽  
Modified Electrode ◽  
Covalent Immobilization ◽  
Multiwalled Carbon ◽  
Chitosan Composite

A modified electrode using carboxylated multiwalled carbon nanotubes and 1-butyl-2,3-dimethylimidazolium hexafluorophosphate ionic liquid for a simultaneous hazardous textile dye sensor

2017 ◽  
Vol 9 (2) ◽  
pp. 267-275 ◽  
Author(s):  
B. Rezaei ◽  
H. Khosropour ◽  
A. A. Ensafi
Keyword(s):  
Carbon Nanotubes ◽  
Ionic Liquid ◽  
Electrochemical Sensor ◽  
Multiwalled Carbon Nanotubes ◽  
Modified Electrode ◽  
Low Cost ◽  
Textile Dye ◽  
Multiwalled Carbon ◽  
Acid Blue

A simultaneous, sensitive and low-cost electrochemical sensor for acid blue 29 (AB 29) and mordant yellow 10 (MY 10) determination.

scholarly journals Significantly Improved Dielectric Performance of Poly(1-butene)-Based Composite Films via Filling Polydopamine Modified Ba(Zr0.2Ti0.8)O3-Coated Multiwalled Carbon Nanotubes Nanoparticles

Polymers ◽  
2021 ◽  
Vol 13 (2) ◽  
pp. 285
Author(s):  
Lingfei Li ◽  
Qiu Sun ◽  
Xiangqun Chen ◽  
Zhaohua Jiang ◽  
Yongjun Xu
Keyword(s):  
Carbon Nanotubes ◽  
Dielectric Constant ◽  
Energy Storage ◽  
Composite Film ◽  
Multiwalled Carbon Nanotubes ◽  
Sol Gel ◽  
Composite Films ◽  
Weak Electric Field ◽  
Multiwalled Carbon ◽  
Dielectric Performance

The low dielectric constant of the nonpolar polymer poly(1-butene) (PB-1) limits its application as a diaphragm element in energy storage capacitors. In this work, Ba(Zr0.2Ti0.8)O3-coated multiwalled carbon nanotubes (BZT@MWCNTs) were first prepared by using the sol–gel hydrothermal method and then modified with polydopamine (PDA) via noncovalent polymerization. Finally, PB-1 matrix composite films filled with PDA-modified BZT@MWCNTs nanoparticles were fabricated through a solution-casting method. Results indicated that the PDA-modified BZT@MWCNTs had good dispersion and binding force in the PB-1 matrix. These characteristics improved the dielectric and energy storage performances of the films. Specifically, the PDA-modified 10 vol% BZT@ 0.5 vol% MWCNTs/PB-1 composite film exhibited the best dielectric performance. At 1 kHz, the dielectric constant of this film was 25.43, which was 12.7 times that of pure PB-1 films. Moreover, its dielectric loss was 0.0077. Furthermore, under the weak electric field of 210 MV·m−1, the highest energy density of the PDA-modified 10 vol% BZT@ 0.5 vol% MWCNTs/PB-1 composite film was 4.57 J·cm−3, which was over 3.5 times that of PB-1 film (≈1.3 J·cm−3 at 388 MV·m−1).

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