Electrochemical determination of 4-nitrophenol using uniform nanoparticle film electrode of glass carbon fabricated facilely by square wave potential pulses

Wang, Pengshu; Xiao, Jiayang; Liao, Ayan; Li, Peng; Guo, Manman; Xia, Yue; Li, Zelin; Jiang, Xiaochun; Huang, Wei

doi:10.1016/j.electacta.2015.07.054

Cited by 45 publications

(31 citation statements)

References 37 publications

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“…The modification was conducted using square wave potential pulse by stepping the potential between À1.3 V and 0.6 V alternatively at a frequency of 5 Hz for different time (800, 1600, 2400 s) in 2 mol L À1 NaOH solution by the literature [28]. The modification was conducted using square wave potential pulse by stepping the potential between À1.3 V and 0.6 V alternatively at a frequency of 5 Hz for different time (800, 1600, 2400 s) in 2 mol L À1 NaOH solution by the literature [28].…”

Section: Modification Of Graphite Feltmentioning

confidence: 99%

“…The modification for graphite felt was carried out by using the electrochemical workstation (CHI660E, Shanghai Chenhua Instruments, China) on a three-electrode system (working electrode: graphite felt, reference electrode: saturated calomel electrode (SCE), counter electrode: Pt sheet). The modification was conducted using square wave potential pulse by stepping the potential between À1.3 V and 0.6 V alternatively at a frequency of 5 Hz for different time (800, 1600, 2400 s) in 2 mol L À1 NaOH solution by the literature [28].…”

Section: Modification Of Graphite Feltmentioning

confidence: 99%

“…However, as seen at high magnification, there are many nano-scale pores formed on the surface with a size range of 10-50 nm. The formation of nanopores is probably attributed to the surface layer oxidation and microscopic mechanical destruction of surface during the treatment [28][29][30]. Compared with the electrochemical oxidation method at relatively high potential range of 5-15 V [27], the graphite felt modified by square wave potential pulse treatment at alternatively low potential was etched in more well-proportioned and smaller scale.…”

Section: Microstructure Characterizations and Structural Propertiesmentioning

confidence: 99%

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Graphite felt electrode modified by square wave potential pulse for vanadium redox flow battery

Jiang

Zhou

et al. 2016

Int. J. Energy Res.

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Summary In this paper, graphite felts treated by square wave potential pulse were modified as electrode for vanadium redox flow battery (VRFB). X‐ray photoelectron spectroscopy measurements indicated that the treatment for graphite felt can introduce oxygen‐containing groups on the surface. Moreover, graphite felt can also be etched to form nano‐scale pores, without damage of mechanical property by treatment. The formed nano‐scale pores and introduced oxygen‐containing groups can enhance the wettability of electrolyte on graphite felt and electrochemical kinetics of V(II)/V(III) and V(IV)/V(V) redox reactions. The treated graphite felt was employed as electrode to assemble the static cell, and its electrochemical performance was evaluated. The cell using modified graphite felt exhibits larger discharge capacity and energy efficiency compared with the pristine graphite felt. The average energy efficiency for graphite felt treated for 1600 s can reach 87.0% at 30 mA cm−2, 4.2% larger than that for the pristine graphite felt. This study demonstrates that the square wave potential pulse treatment is an efficient way to enhance the electrochemical properties of graphite felt for VRFB system. Copyright © 2016 John Wiley & Sons, Ltd.

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Section: Modification Of Graphite Feltmentioning

confidence: 99%

Section: Modification Of Graphite Feltmentioning

confidence: 99%

Section: Microstructure Characterizations and Structural Propertiesmentioning

confidence: 99%

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Graphite felt electrode modified by square wave potential pulse for vanadium redox flow battery

Jiang

Zhou

et al. 2016

Int. J. Energy Res.

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“…Nitrophenols possess different properties such as they are toxic, inhibitory and bio-refractory natural chemicals. Amongst them, 4-NPh is the most important toxic and hazardous chemical that is detrimental to the health of living organisms in both soil and water environments [12]. If 4-NPh is continuously inhaled it causes health issues such as nausea, cyanosis, complications in humans and the Environmental Safety Corporation indexed and restricted its concentration to 0.43 µM in water environments [13][14].…”

Section: Introductionmentioning

confidence: 99%

Electrochemical Detection of 4-Nitrophenol by Using Graphene Based Nanocomposite Modified Glassy Carbon Electrodes: A Mini Review

Prabakaran

Pillay

2021

Nanoarchitectonics

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This article describes the fabrication of electrochemical devices for the detection of a key environmental pollutant, 4-Nitrophenol (4-NPh). 4-NPh is a requirement for the synthesis of organophosphate pesticides. These pesticides are mostly used in the agricultural sector to obtain a high yield of agricultural products. The use of 4-NPh in the agricultural field results in poisonous levels of this compound in the soil and water. Different techniques have been used for its transformation by biological and chemical degradation. However, these strategies not only created highly toxic pollutant but also need fast operation and time consuming processes. In this background, we have reported a broad and efficient review of the electrochemical reduction of 4-NPh as a feasible alternate method. In this review paper, graphene oxide (GO), reduced graphene oxide (rGO), N-doped graphene oxide, functionalized graphene oxide, metallic nanoparticles coated graphene oxide, metal oxides covered on rGO, polymer functionalized graphene oxide and hybrids materials functionalized with graphene oxide (hydroxyl apatite and β-cyclodextrin) which have been fabricated on a glassy carbon electrode (GCE) to enhance the electrocatalytic reduction and increase the sensor activity of 4-NPh are discussed. We have also described the effects of a few interfering phenolic pollutants such as aminophenol, hydroquinone, o-nitrophenol (o-NPh), trinitrotoluene, trinitrophenol, 2, 4-dinitrophenol (4-DNPh) and nitrobenzene. In the paper, easy and more effective electrochemical methods for the detection of 4-NPh with graphene- based nanocomposites modified on GCE for 4-NPh detection are summarized and discussed.

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“…There are several methods for removal of 4‐nitrophenol such as photocatalytic degradation, microwave‐assisted catalytic oxidation, electro‐Fenton method, electrocoagulation, microbial degradation, and electrochemical treatment . However, the reduction reaction of 4‐nitrophenol to 4‐aminophenol is considered as the most efficient, economical, and eco‐friendly approach to dispose 4‐nitrophenol because the product of the reduction reaction is 4‐nitrophenol which is an important category of intermediates for synthesis of drugs and dyes .…”

Section: Introductionmentioning

confidence: 99%

Reductant‐Free Synthesis of Silver Nanoparticles by Functionalized Hollow Doughnut Mesoporous Silica Nanoparticles for Preparation of Catalytic Nanoreactor

Patra

Kim

2018

ChemistrySelect

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This work reports a detailed investigation about functionalization of hollow doughnut mesoporous silica nanoparticles (hd-MSN) by N 1 -(3-Trimethoxysilylpropyl) diethylenetriamine (DAEAPTS). Interestingly, here we experimentally show that the tri-amino functional groups on hd-MSN (hd-MSN-NH 2 ) act as capping agent as well as reducing agent for silver ions (Ag + ) and the reduction reaction process can significantly influence the structure of the silver nanocrystals. Thus, we have deposited uniform 4.2 nm silver nanocrystals on the hd-MSN-NH 2 nanoparticles without any reducing agents. The size and the crystalline structure of Silver nanoparticles (Ag NPs) and silica nanoparticles were characterized by scanning electron microscopy (SEM), transmission electron microscopy (TEM) and wide-angle X-ray diffraction, respectively. The mechanism of reduction of Ag + was clearly studied by FT-IR, FT-Raman, XRD and XPS studies. Ag/hd-MSN-NH 2 with special shape (hollow doughnut shape) could incorporate Ag NPs both inside and outside of hd-MSN. Here Ag/hd-MSN-NH 2 worked as nanoreactor. In our condition for catalytic reduction of 4-nitrophenol, the reaction rate reached 4.1 x10 À3 s À1 which is higher than many previous results. The Ag/hd-MSN-NH 2 nanocatalyst shows excellent reusability and high efficiency even after 10 cycles.[a] N.

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Electrochemical determination of 4-nitrophenol using uniform nanoparticle film electrode of glass carbon fabricated facilely by square wave potential pulses

Cited by 45 publications

References 37 publications

Graphite felt electrode modified by square wave potential pulse for vanadium redox flow battery

Graphite felt electrode modified by square wave potential pulse for vanadium redox flow battery

Electrochemical Detection of 4-Nitrophenol by Using Graphene Based Nanocomposite Modified Glassy Carbon Electrodes: A Mini Review

Reductant‐Free Synthesis of Silver Nanoparticles by Functionalized Hollow Doughnut Mesoporous Silica Nanoparticles for Preparation of Catalytic Nanoreactor

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