Copper sulfide nano-globules reinforced electrodes for high-performance electrochemical determination of toxic pollutant hydroquinone

2021 ◽  
Vol 45 (6) ◽  
pp. 3215-3223
Author(s):  
Selvarasu Maheshwaran ◽  
Ramachandran Balaji ◽  
Shen-Ming Chen ◽  
Ray Biswadeep ◽  
Vengudusamy Renganathan ◽  
...  
Keyword(s):  
Copper Sulfide ◽  
High Performance ◽  
Electrochemical Determination ◽  
Electrochemical Sensing ◽  
Sensing Platform ◽  
Toxic Pollutant

A high-performance electrochemical sensing platform based on CuS nano-globules is efficiently developed.

High-performance electrochemical sensing platform based on sodium alginate-derived 3D hierarchically porous carbon for simultaneous determination of dihydroxybenzene isomers

2021 ◽  
Author(s):  
Liang Wei ◽  
Xinlong Huang ◽  
Xianqian Zhang ◽  
Xiande Yang ◽  
Jing Yang ◽  
...  
Keyword(s):  
Electrochemical Sensor ◽  
Simultaneous Determination ◽  
Porous Carbon ◽  
High Performance ◽  
Three Dimensional ◽  
Electrochemical Sensing ◽  
Dihydroxybenzene Isomers ◽  
Hierarchically Porous ◽  
Sensing Platform

A selective and sensitive electrochemical sensor based on three-dimensional hierarchically porous carbon was developed for simultaneous determination of dihydroxybenzene isomers.

Core-shell Cu@C@ZIF-8 composite: a high-performance electrode material for electrochemical sensing of nitrite with high selectivity and sensitivity

2021 ◽  
Author(s):  
Feng Gao ◽  
Xiaolong Tu ◽  
Yongfang Yu ◽  
Yansha Gao ◽  
Jin Zou ◽  
...  
Keyword(s):  
High Performance ◽  
High Selectivity ◽  
Limit Of Detection ◽  
Metal Organic Framework ◽  
High Sensitivity ◽  
Electrochemical Sensing ◽  
Core Shell ◽  
Zeolitic Imidazolate Framework ◽  
Sensing Platform ◽  
The Difference

Abstract Herein, an efficient electrochemical sensing platform is proposed for selective and sensitive detection of nitrite on the basis of Cu@C@Zeolitic imidazolate framework-8 (Cu@C@ZIF-8) heterostructure. Core-shell Cu@C@ZIF-8 composite was synthesized by pyrolysis of Cu-metal-organic framework@ZIF-8 (Cu-MOF@ZIF-8) in Ar atmosphere on account of the difference of thermal stability between Cu-MOF and ZIF-8. For the sensing system of Cu@C@ZIF-8, ZIF-8 with proper pore size allows nitrite diffuse through the shell, while big molecules cannot, which ensures high selectivity of the sensor. On the other hand, Cu@C as electrocatalyst promotes the oxidation of nitrite, thereby resulting high sensitivity of the sensor. Accordingly, the Cu@C@ZIF-8 based sensor presents excellent performance for nitrite detection, which achieves a wide linear response range of 0.1 µM to 300.0 µM, and a low limit of detection (LOD) of 0.033 µM. In addition, the Cu@C@ZIF-8 sensor possesses excellent stability and reproducibility, and was employed to quantify nitrite in sausage samples with recoveries of 95.45-104.80%.

Preparation of yolk–shell structured Ag@Cu particles and their application in high performance electrochemical sensing of p-aminobenzoic acid

2019 ◽  
Vol 97 (2) ◽  
pp. 140-146
Author(s):  
Tian Gan ◽  
Zhikai Wang ◽  
Mengru Chen ◽  
Wanqiu Fu ◽  
Haibo Wang ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
High Performance ◽  
Electrochemical Impedance ◽  
High Sensitivity ◽  
Differential Pulse ◽  
Electrochemical Sensing ◽  
High Catalytic Activity ◽  
Aminobenzoic Acid ◽  
Transmission Electron

In this work, the Ag@Cu particles with yolk–shell nanostructure was prepared by facile solvothermal method, which was modified on glassy carbon electrode (GCE) to fabricate electrochemical sensor for the convenient and fast determination of p-aminobenzoic acid (PABA). The surface morphology and electrochemical properties of the as-prepared Ag@Cu nanocomposite modified electrode were characterized by scanning electron microscopy, transmission electron microscopy, chronocoulometry, and electrochemical impedance spectroscopy. Further, the electrochemical sensing of PABA was performed on the Ag@Cu/GCE using cyclic voltammetry and differential pulse voltammetry techniques, showing high catalytic activity. Under the optimal conditions, the sensor exhibited a wide linear range, high sensitivity, and low detection limit of 0.315 μmol/L for PABA. The developed sensor was also successfully applied for PABA detection in anesthetic and cosmetics with satisfactory results.

Fully optimized new sensitive electrochemical sensing platform for the selective determination of antiepileptic drug ezogabine

2019 ◽  
Vol 144 ◽  
pp. 130-138 ◽  
Author(s):  
Mona A. Mohamed ◽  
Ahmed S. Fayed ◽  
Maha A. Hegazy ◽  
Nahla N. Salama ◽  
Enas E. Abbas
Keyword(s):  
Antiepileptic Drug ◽  
Electrochemical Sensing ◽  
Selective Determination ◽  
Sensing Platform

Simultaneous determination of Acetaminophen and dopamine based on a water-soluble pillar[6]arene and ultrafine Pd nanoparticle-modified covalent organic framework nanocomposite

The Analyst ◽  
2021 ◽  
Vol 146 (1) ◽  
pp. 262-269
Author(s):  
Xiaoping Tan ◽  
Tong Mu ◽  
Sheng Wang ◽  
Jian Li ◽  
Juan Huang ◽  
...  
Keyword(s):  
Simultaneous Determination ◽  
Water Soluble ◽  
Electrochemical Sensing ◽  
Pd Nanoparticle ◽  
Covalent Organic Framework ◽  
Sensing Platform ◽  
Organic Framework

A novel electrochemical sensing platform for the simultaneous determination of AP and DA based on a water-soluble pillar[6]arene and ultrafine Pd nanoparticle-modified covalent organic framework nanocomposite.

An electrochemical sensing platform amplified with a Au@Ag nanoparticle-decorated three-dimensional N-doped graphene aerogel for ultrasensitive determination of baicalein

2020 ◽  
Vol 44 (37) ◽  
pp. 15975-15982
Author(s):  
Xueliang Niu ◽  
Weili Zhang ◽  
Yan Huang ◽  
Likai Wang ◽  
Zhongfang Li ◽  
...  
Keyword(s):  
Three Dimensional ◽  
Electrochemical Sensing ◽  
Ag Nanoparticle ◽  
Graphene Aerogel ◽  
Sensing Platform ◽  
Highly Sensitive ◽  
Signal Amplifier ◽  
Doped Graphene ◽  
Sensitive Determination

A novel electrochemical method for highly sensitive determination of baicalein was developed with Au@Ag/3DNGA as signal amplifier.

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