Facile and Ultrasensitive Determination of 4-Nitrophenol Based on Acetylene Black Paste and Graphene Hybrid Electrode
TLDR
A voltammetric sensor was proposed for the direct and sensitive detection of 4-nitrophenol (4-NP) at nanomolar level in complex matrices by using graphene and acetylene black paste hybridized electrode (GR/ABPE).Abstract:
4-nitrophenol (4-NP) is a hazardous waste and a priority toxic pollutant identified by US Environmental Protection Agency (EPA). Hence, in this paper, a voltammetric sensor was proposed for the direct and sensitive detection of 4-nitrophenol (4-NP) at nanomolar level in complex matrices by using graphene and acetylene black paste hybridized electrode (GR/ABPE). Under optimal conditions, the calibration curve demonstrates a linear relationship for 4-NP in the range from 20 nM to 8.0 μM and 8.0 μM to 0.1 mM separately with the detection limit of 8.0 nM. In addition to it, the performance of the GR/ABPE in practical applications was evaluated by detecting 4-NP in various water samples, and satisfactory recoveries were realized. Therefore, GR/ABPE may have a great potential application for facile and sensitive detection of 4-NP in complex matrices at nanomolar level.read more
Citations
More filters
Journal ArticleDOI
An amplified voltammetric sensor based on platinum nanoparticle/polyoxometalate/two-dimensional hexagonal boron nitride nanosheets composite and ionic liquid for determination of N-hydroxysuccinimide in water samples
Hassan Karimi-Maleh,Hassan Karimi-Maleh,Fatemeh Karimi,Samira Malekmohammadi,Nilofar Zakariae,Roghayeh Esmaeili,Sadegh Rostamnia,Mehmet Lütfi Yola,Necip Atar,Shirin Movaghgharnezhad,Saravanan Rajendran,Amir Razmjou,Amir Razmjou,Yasin Orooji,Shilpi Agarwal,Vinod Kumar Gupta +15 more
TL;DR: In this paper, a novel electrochemical method as a conductive voltammetric sensor for determination of N-hydroxysuccinimide was developed, which was achieved by carbon paste electrode (CPE) amplified with tri-component nanohybrid composite (Platinum nanoparticle/Polyoxometalate/Two-dimensional hexagonal boron nitride nanosheets) (PtNPs/POM/2D-hBN) and 1-hexyl-3-methylimidazolium chloride (HMICl
Journal ArticleDOI
Simultaneous and sensitive determination of ascorbic acid, dopamine and uric acid via an electrochemical sensor based on PVP-graphene composite
Yiyong Wu,Yiyong Wu,Peihong Deng,Yaling Tian,Yaling Tian,Jinxia Feng,Jingyun Xiao,Junhua Li,Jun Liu,Guangli Li,Quanguo He,Quanguo He +11 more
TL;DR: A simple and sensitive electrochemical sensor, which based on the polyvinylpyrrolidone-graphene composite film modified glassy carbon electrode (PVP-GR/GCE) was presented for detecting ascorbic acid, dopamine and uric acid simultaneously, presented the advantages of high sensitivity and selectivity, excellent reproducibility and long-term stability.
Journal ArticleDOI
Rapid and highly selective electrochemical sensor based on ZnS/Au-decorated f-multi-walled carbon nanotube nanocomposites produced via pulsed laser technique for detection of toxic nitro compounds.
TL;DR: In this paper, a novel ZnS/Au/f-multi-walled carbon nanotube (MWCNT) nanostructures were produced via a pulsed laser-assisted technique followed by a wet chemical process.
Journal ArticleDOI
Recent Developments in Polymer Nanocomposite-Based Electrochemical Sensors for Detecting Environmental Pollutants
Somayeh Tajik,Hadi Beitollahi,Fariba Garkani Nejad,Zahra Dourandish,Mohammad A. Khalilzadeh,Ho Won Jang,Richard A. Venditti,Rajender S. Varma,Rajender S. Varma,Mohammadreza Shokouhimehr +9 more
TL;DR: In this article, the most important methods for polymer nanocomposites synthesis, such as in situ polymerization, direct mixing of polymer and nanofillers (meltmixing and solution-mixing), sol-gel, and electrochemical methods are discussed.
Journal ArticleDOI
Electrochemical Sensor for Rapid and Sensitive Detection of Tryptophan by a Cu2O Nanoparticles-Coated Reduced Graphene Oxide Nanocomposite.
Quanguo He,Quanguo He,Quanguo He,Yaling Tian,Yaling Tian,Yiyong Wu,Yiyong Wu,Jun Liu,Guangli Li,Peihong Deng,Dongchu Chen +10 more
TL;DR: The proposed method for the electrochemical determination of tryptophan (Trp) by this composite modified glassy carbon electrode (GCE) has been successfully applied in the determination of Trp concentration in practical samples.
References
More filters
Journal ArticleDOI
Electric Field Effect in Atomically Thin Carbon Films
Kostya S. Novoselov,Andre K. Geim,Sergey V. Morozov,Da Jiang,Y. Zhang,S. V. Dubonos,Irina V. Grigorieva,A. A. Firsov +7 more
TL;DR: Monocrystalline graphitic films are found to be a two-dimensional semimetal with a tiny overlap between valence and conductance bands and they exhibit a strong ambipolar electric field effect.
Journal ArticleDOI
A graphene oxide-based electrochemical sensor for sensitive determination of 4-nitrophenol.
TL;DR: This electrochemical sensor was further applied to determine 4-NP in real water samples, and it showed great promise for simple, sensitive, and quantitative detection of 4- NP.
Journal ArticleDOI
Towards Improvements for Penetrating the Blood–Brain Barrier—Recent Progress from a Material and Pharmaceutical Perspective
TL;DR: In this review, the anatomical and functional structure of the BBB is comprehensively discussed, the mechanisms of BBB penetration are summarized, and the methods and effects on increasing BBB permeability are investigated in detail.
Journal ArticleDOI
A promising sensing platform toward dopamine using MnO2 nanowires/electro-reduced graphene oxide composites
TL;DR: In this article, a promising sensing platform for the detection of dopamine (DA) has been constructed using MnO2 nanowires-electrochemically reduced graphene oxide modified glassy carbon electrode (MnO2 NWs-ErGO/GCE).