Electrochemical Determination of Pentachlorophenol in Water on a Multi-Wall Carbon Nanotubes-Epoxy Composite Electrode

Remes, Adriana; Pop, Aniela; Manea, Florica; Baciu, Anamaria; Picken, Stephen J.; Schoonman, J.

doi:10.3390/s120607033

Cited by 34 publications

(19 citation statements)

References 19 publications

(19 reference statements)

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“…The details regarding the preparation, morphological and electrical characterization have been presented by our group elsewhere [14]. It should be mentioned that the CNT loading within the epoxy matrix was 20%, wt.…”

Section: Methodsmentioning

confidence: 99%

“…Taking into account our previously reported papers [14,15], 0.1 M Na 2 SO 4 and 0.1 M NaOH supporting electrolytes were tested for studying the electrochemical behavior of a CNTE electrode in the presence of salicylic acid (SA). Figure 1 shows the cyclic voltammograms recorded in 0.1 M Na 2 SO 4 supporting electrolyte (curve 1) in the presence of 0.6 mM salicylic acid (SA) (curve 2) and 0.1 M NaOH supporting electrolyte (curve 3) and also, in the presence of 0.6 mM salicylic acid (SA) (curve 4).…”

Section: Electrochemical Behaviour Of Sa On a Cnte Electrode By Cyclimentioning

confidence: 99%

“…Taking into consideration that carbon nanotube (CNT)-based electrodes have exhibited good performances for the voltammetric/amperometric detections reported in our previous study [13,14], in this study, the voltammetric determination of SA at carbon nanotubes-epoxy (CNTE) composite electrode has been investigated using cyclic voltammetry (CV), differential-pulsed voltammetry and squarewave voltammetry (SWV).…”

Section: Introductionmentioning

confidence: 99%

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Voltammetric/amperometric detection of salicylic acid in water on carbon nanotubes-epoxy composite electrodes

Iacob¹,

Manea²,

Schoonman³

et al. 2015

WIT Transactions on the Built Environment

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This study aimed to develop the detection protocol for the quantitative determination of salicylic acid (SA) in water. A carbon nanotubes-epoxy composite (CNTE) electrode was tested for the development of the SA detection protocol. The electrochemical behaviour of SA on a CNTE electrode has been studied using the cyclic voltammetry (CV) technique. Also, the study of pH effect by CV showed that no significant effect was found. Differential-pulsed voltammetry (DPV) and square-wave voltammetry (SWV) techniques were employed for the optimization of the detection protocol. The optimized SWV technique application assumes the step potential of 0.005 V, the modulation amplitude of 0.05 V and the frequency of 50 Hz. In order to use this detection protocol for the in-field detection application, the possibility of using this composite electrode in real surface water without adding the supporting electrolyte has been tested. The same electroanalytical parameters for SA detection in real surface water and tap water were achieved without any interference, which denotes the microelectrode array behaviour of the composite electrode. This behaviour confers a great potential of this composite electrode for in-field direct detection of salicylic acid and also, for the indirect detection of acetylsalicylic acid from surface water.

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Section: Methodsmentioning

confidence: 99%

Section: Electrochemical Behaviour Of Sa On a Cnte Electrode By Cyclimentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Voltammetric/amperometric detection of salicylic acid in water on carbon nanotubes-epoxy composite electrodes

Iacob¹,

Manea²,

Schoonman³

et al. 2015

WIT Transactions on the Built Environment

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“…Also, better dispersion and wettability of CNF facilitates its manipulation to prepare CNF composite electrode [4]. CNT and CNF based composite electrodes have been reported for the detection of pentachlorophenol by our group [5], [6].…”

Section: Introductionmentioning

confidence: 99%

Silver Electrodeposited Carbon Nanofiber-Epoxy Electrode for Fluoxetine Detection

Ardelean¹,

Manea²,

Pode³

2016

IJCEA

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Abstract-In this study, a simple and high sensitive electrochemical sensor is developed for the detection of fluoxetine (FXT) on a silver electrodeposited-carbon nanofiber-epoxy (AgCNFE) electrode. Cyclic voltammetry (CV) method was used for the comparative electrochemical behavior of FXT on AgCNFE, commercial silver electrode (Ag) and carbon nanofiber-epoxy (CNFE) composite electrode. A synergic effect in relation to the sensitivity for FXT detection was found on AgCNFE electrode versus commercial Ag electrode and CNFE electrode. Chronoamperometry (CA) results show that AgCNFE electrode exhibited a great potential for the real practical application in FXT detection without possible interference.Index Terms-Carbon nanofiber, silver electrodeposited, fluoxetine detection.

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“…PCP is toxic to all life forms since it inhibits oxidative phosphorylation [12]. Furthermore, it can accumulate in living organisms and thus produce adverse effect as carcinogenicity and acute toxicity [13]. In addition, this compound is highly recalcitrant due to the stability of the aromatic ring and its high degree of chlorination [14], whereby it can be considered as a hazardous pollutant for the environment.…”

Section: Introductionmentioning

confidence: 99%

Enhanced Removal of a Pesticides Mixture by Single Cultures and Consortia of Free and ImmobilizedStreptomycesStrains

Fuentes

Briceño

Sáez

et al. 2013

BioMed Research International

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Pesticides are normally used to control specific pests and to increase the productivity in crops; as a result, soils are contaminated with mixtures of pesticides. In this work, the ability of Streptomyces strains (either as pure or mixed cultures) to remove pentachlorophenol and chlorpyrifos was studied. The antagonism among the strains and their tolerance to the toxic mixture was evaluated. Results revealed that the strains did not have any antagonistic effects and showed tolerance against the pesticides mixture. In fact, the growth of mixed cultures was significantly higher than in pure cultures. Moreover, a pure culture (Streptomyces sp. A5) and a quadruple culture had the highest pentachlorophenol removal percentages (10.6% and 10.1%, resp.), while Streptomyces sp. M7 presented the best chlorpyrifos removal (99.2%). Mixed culture of all Streptomyces spp. when assayed either as free or immobilized cells showed chlorpyrifos removal percentages of 40.17% and 71.05%, respectively, and for pentachlorophenol 5.24% and 14.72%, respectively, suggesting better removal of both pesticides by using immobilized cells. These results reveal that environments contaminated with mixtures of xenobiotics could be successfully cleaned up by using either free or immobilized cultures of Streptomyces, through in situ or ex situ remediation techniques.

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Electrochemical Determination of Pentachlorophenol in Water on a Multi-Wall Carbon Nanotubes-Epoxy Composite Electrode

Cited by 34 publications

References 19 publications

Voltammetric/amperometric detection of salicylic acid in water on carbon nanotubes-epoxy composite electrodes

Voltammetric/amperometric detection of salicylic acid in water on carbon nanotubes-epoxy composite electrodes

Silver Electrodeposited Carbon Nanofiber-Epoxy Electrode for Fluoxetine Detection

Enhanced Removal of a Pesticides Mixture by Single Cultures and Consortia of Free and ImmobilizedStreptomycesStrains

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