scholarly journals An electrochemical sensor based on copper-based metal–organic framework-reduced graphene oxide composites for determination of 2,4-dichlorophenol in water

RSC Advances ◽  
2020 ◽  
Vol 10 (69) ◽  
pp. 42212-42220
Author(s):  
Manh B. Nguyen ◽  
Vu Thi Hong Nhung ◽  
Vu Thi Thu ◽  
Dau Thi Ngoc Nga ◽  
Thuan Nguyen Pham Truong ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Electrochemical Sensor ◽  
Reduced Graphene Oxide ◽  
Metal Organic Framework ◽  
Electrochemical Sensing ◽  
Sensing Platform ◽  
Reduced Graphene ◽  
Metal Organic ◽  
Oxide Composites

In the present work, we reported the fabrication of a novel electrochemical sensing platform to detect 2,4-dichlorophenol (2,4-DCP) by using a copper benzene-1,3,5-tricarboxylate–graphene oxide (Cu–BTC/GO) composite.

Electrochemical determination of levodopa on a reduced graphene oxide paste electrode modified with a metal-organic framework

2020 ◽  
Vol 156 ◽  
pp. 104888 ◽  
Author(s):  
Ebrahim Naghian ◽  
Faezeh Shahdost-fard ◽  
Esmail Sohouli ◽  
Vahid Safarifard ◽  
Mostafa Najafi ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Metal Organic Framework ◽  
Electrochemical Determination ◽  
Reduced Graphene ◽  
Metal Organic ◽  
Paste Electrode ◽  
Organic Framework

Electrochemical Capacitance of Ni-Doped Metal Organic Framework and Reduced Graphene Oxide Composites: More than the Sum of Its Parts

2015 ◽  
Vol 7 (6) ◽  
pp. 3655-3664 ◽  
Author(s):  
Parama Chakraborty Banerjee ◽  
Derrek E. Lobo ◽  
Rick Middag ◽  
Woo Kan Ng ◽  
Mahdokht E. Shaibani ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Metal Organic Framework ◽  
Electrochemical Capacitance ◽  
Reduced Graphene ◽  
Metal Organic ◽  
Oxide Composites ◽  
Organic Framework

scholarly journals Determination of Bisphenol A in Beverages by an Electrochemical Sensor Based on Rh2O3/Reduced Graphene Oxide Composites

2018 ◽  
Vol 8 (12) ◽  
pp. 2535 ◽  
Author(s):  
Rongguang Shi ◽  
Xiaoli Yuan ◽  
Aifeng Liu ◽  
Mengmeng Xu ◽  
Zongshan Zhao
Keyword(s):  
Graphene Oxide ◽  
Bisphenol A ◽  
Electrochemical Sensor ◽  
Reduced Graphene Oxide ◽  
X Ray Diffraction ◽  
Reduced Graphene ◽  
Simple Filtration ◽  
Oxide Composites ◽  
Excellent Stability

A novel electrochemical sensor, based on a Rh2O3–reduced graphene oxide (rGO) composite modified carbon electrode, has been developed for detecting bisphenol A (BPA) in beverages. The prepared Rh2O3/rGO and its precursor materials were characterized by scanning electron microscope (SEM) and X-ray diffraction (XRD). Under optimum conditions, the sensor presented good electrochemical performance for analyzing BPA, with a linear range of 0.6–40 μM, detection limit of 0.12 μM, good reproducibility, and excellent stability. The good performance can be attributed to the combination of the good catalytic properties of Rh2O3 and good conductivity of rGO. The sensor is directly used for detecting BPA in the residual solutions of four beverages after simple filtration, with satisfactory recoveries of 93–99%.

scholarly journals A Robust Electrochemical Sensor for Determination of ThiamethoxamBased on Electrochemical Reduced Graphene Oxide-Cationic Pillar[6]arene Composite Film

2021 ◽  
Author(s):  
Yanju Wu ◽  
Zikang Li ◽  
Dongyang Han ◽  
Qunpeng Duan ◽  
Fei Wang
Keyword(s):  
Graphene Oxide ◽  
Composite Film ◽  
Reduced Graphene Oxide ◽  
Differential Pulse ◽  
Potential Method ◽  
Electrochemical Sensing ◽  
Sensing Platform ◽  
Reduced Graphene ◽  
Electrochemically Reduced Graphene Oxide

Abstract On the surface of a glassy carbon electrode, electrochemically reduced graphene oxide-cationic pillar[6]arene (ErGO-CP6) composite film was constructed using a pulsed potential method. UV-vis spectra, SEM, Raman spectra and electrochemical experiments were applied to characterize the composite film. It was then used as a new electrochemical sensing platform for determination of thiamethoxam. Due to the synergistic effect of ErGO and CP6, this composite film shows a higher sensitivity and better selectivity toward thiamethoxam than that of ErGO film. The linear range from 1.0 × 10-7 to 1.3 × 10-5 mol L-1 was obtained by differential pulse voltammetry. Meanwhile, the method was applied to cucumber and tomato samples in a recovery test. The recovery was between 92.0% and 98.7%, and the results are satisfactory. This study presents a promising electrochemical sensing platform for rapid and sensitive analysis of thiamethoxam.

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