Sensitive electrochemical sensing of acetaminophen and hydroquinone over single-pot synthesized stabilizer free Ag/Ag-oxide-graphene nanocomposites

Bhat, Sajad Ahmad; Rather, Muzafar Ahmad; Pandit, Sarwar Ahmad; Ingole, Pravin P.; Bhat, Mohsin Ahmad

doi:10.1016/j.jelechem.2016.11.008

Cited by 28 publications

(24 citation statements)

References 61 publications

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“…The comparison of the electrochemical performances revealed that the constructed Co/Co 3 O 4 @HNCP sensor for acetaminophen determination surpassed the other sensors (Table ). ,,− …”

Section: Resultsmentioning

confidence: 99%

Co/Co₃O₄ Nanoparticles Coupled with Hollow Nanoporous Carbon Polyhedrons for the Enhanced Electrochemical Sensing of Acetaminophen

Wang

et al. 2019

ACS Sustainable Chem. Eng.

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Acetaminophen is found in numerous water samples worldwide, such as drinking water and pond water. Nearly half of the drug-induced acute liver failure cases are related to acetaminophen. Herein, by engineering a novel nonspherical polydopamine@zeolitic imidazolate framework-67 (PDA@ZIF-67) template, a facile and effective strategy including the pyrolysis and subsequent oxidation is proposed to build Co/Co 3 O 4 nanoparticles (NPs) coupled with hollow nanoporous carbon polyhedrons (Co/Co 3 O 4 @HNCP). Then, a highly sensitive and selective Co/Co 3 O 4 @HNCP sensor for the electrochemical sensing of acetaminophen is constructed. The as-synthesized hollow carbon polyhedrons present plentiful active sites, ordered nanoporous architectures, and favorable interface properties. The numerous Co/Co 3 O 4 NPs on hollow carbon polyhedrons exhibit a high activity toward acetaminophen oxidation, thereby resulting in highly sensitive responses. The organized porous architectures and favorable interface properties of hollow carbon polyhedrons endow the constructed Co/Co 3 O 4 @HNCP sensor with a high selectivity. Consequently, the constructed Co/Co 3 O 4 @HNCP sensor presented a prominent performance for acetaminophen sensing with a very low detection limit of 0.0083 μM (S/N = 3), a persistent anti-interference ability, and the satisfactory stability. Additionally, the constructed Co/Co 3 O 4 @HNCP sensor achieved practical uses for the sensing of acetaminophen in tap water, pond water, commercial tablets, and human urine with satisfactory recoveries. This study paves a way for the establishment of high-performance sensors based on novel nanostructures with precise compositions. KEYWORDS: acetaminophen, electrochemical sensor, hollow carbon polyhedrons, Co/Co 3 O 4 nanoparticles,

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“…The comparison of the electrochemical performances revealed that the constructed Co/Co 3 O 4 @HNCP sensor for acetaminophen determination surpassed the other sensors (Table ). ,,− …”

Section: Resultsmentioning

confidence: 99%

Co/Co₃O₄ Nanoparticles Coupled with Hollow Nanoporous Carbon Polyhedrons for the Enhanced Electrochemical Sensing of Acetaminophen

Wang

et al. 2019

ACS Sustainable Chem. Eng.

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“…The details of structural elucidation of graphene oxide and Ag-Gr synthesized through the method employed for the present work are reported in our earlier publication . The UV–vis absorption characteristics for Pd-Gr and PdAg-Gr are presented in the form of Figure A, and those for graphene oxide and Ag-Gr are depicted as Figure S1A in Supporting Information (SI).…”

Section: Resultsmentioning

confidence: 99%

“…Graphene oxide was synthesized through improved Hummers method using acidified KMnO 4 as oxidizing agent . The details about the synthesis of Ag–graphene nanocomposite are reported elsewhere . Factors like standard reduction potentials of metals, strength of reducing agent, and temperature are key to the formation of alloy nanoparticles.…”

Section: Methodsmentioning

confidence: 99%

“…The purpose of the thermal treatment was to promote the diffusion and fusion of Pd and Ag nanocrystals to homogenize their distribution. The typical advantages of using NH 2 OH, a strong reducing agent, in PdAg-Gr alloy synthesis have been discussed in our previous study . In a typical experiment, 0.0625 g of graphene oxide dissolved in 100 mL of triple-distilled water was subjected to 1 h ultrasonication to obtain a homogeneous dispersion.…”

Section: Methodsmentioning

confidence: 99%

“…The PdAg-Gr nanocomposites were characterized by UV–vis spectrophotometry, powder X-ray diffraction (XRD), transmission electron microscopy (TEM) analysis, and X-ray photoelectron spectroscopy (XPS). The details of these measurements and the specification of the instruments employed are reported elsewhere . Electrochemical measurements were performed with a Metrohm Autolab potentiostat/galvanostat (PGSTAT-100N).…”

Section: Methodsmentioning

confidence: 99%

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PdAg Bimetallic Nanoalloy-Decorated Graphene: A Nanohybrid with Unprecedented Electrocatalytic, Catalytic, and Sensing Activities

Bhat

Rashid

Rather

et al. 2018

ACS Appl. Mater. Interfaces

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Recent reports about the promising and tunable electrocatalytic activity and stability of nanoalloys have stimulated an intense research activity toward the design and synthesis of homogeneously alloyed novel bimetallic nanoelectrocatalysts. We herein present a simple one-pot facile wet-chemical approach for the deposition of high-quality bimetallic palladium-silver (PdAg) homogeneous nanoalloy crystals on reduced graphene (Gr) oxide sheets. Morphological, structural, and chemical characterizations of the so-crafted nanohybrids establish a homogeneous distribution of 1:1 PdAg nanoalloy crystals supported over reduced graphene oxide (PdAg-Gr). The PdAg-Gr nanohybrids exhibit outstanding electrocatalytic, catalytic, and electroanalytical performances. The PdAg-Gr samples were found to exhibit exceptional durability when subjected to repeated potential cycles or long-term electrolysis. In the CVs recorded for fuel cell reactions, viz. methanol oxidation reaction and oxygen reduction reaction, and for detoxification of environmental pollutants, viz. electroreduction of methyl iodide and chloroacetonitrile over PdAg-Gr with potential sweep rate of 25 mVs, the peak potentials were observed to be just -0.221, -0.297, (vs Ag/AgCl, 3 M KCl) -1.508, and -1.189 V (vs Fc/Fc), respectively. The potential of PdAg-Gr nanohybrid for simultaneous and sensitive electrochemical sensing and estimation of hydroxybenzene isomers with very low detection limits (0.05 μM for hydroquinone, 0.06 μM for catechol, 6.7 nM for 4-aminophenol, and 13.7 nM for 2-aminophenol) is demonstrated. Additionally, PdAg-Gr was observed to offer excellent solution-phase catalytic performance in bringing about the reduction of notorious environmental pollutant 4-nitrophenol to pharmaceutically important 4-aminophenol with an apparent rate constant ( k) of 3.106 × 10 s and a normalized rate constant ( k) of 6.21 × 10 s g. The presented synthetic scheme besides being high yielding, low cost, and easy to carry out results in the production of PdAg-Gr nanohybrids with stability and activity significantly better than most of the nanomaterials purposefully designed and testified so far by various groups.

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Imidazolium Based Surface Active Ionic Liquids as Novel Micellar Media for Simultaneous and Sensitive Electrochemical Detection of Dopamine and Ascorbic Acid

et al. 2017

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Surface active ionic liquid (SAIL) micelle assisted, simultaneous and highly sensitive electrochemical sensing of dopamine (DA) and ascorbic acid (AA) is presented. Results presented herein establish that SAILs viz.1‐dodecyl‐3‐methyl imidazolium chloride ([DDMIM][Cl]), 1‐octyl‐3‐methyl imidazolium chloride ([OMIM][Cl]) and 1‐butyl‐3‐methyl imidazolium chloride ([BMIM][Cl]) exhibit a probe and SAIL nature/concentration specific impact on the redox behaviour of hydroquinone (H2Q), dopamine (DA) and ascorbic acid (AA). To our observations, the electrochemical behaviour of DA and AA is affected oppositely by SAILs with the apparent effects being more appreciable in presence of [DDMIM][Cl]. In the presence of [DDMIM][Cl] micelles, the electro‐oxidation of AA was observed to occur at potentials about 350 mV less positive than required for electrooxidation of DA, an important advantage that minimises the interference of former in sensing of the later. The peak to peak potential separation of 350 mV observed in presence of [DDMIM][Cl] micelles is the largest to be reported so far. The DPV signal for DA and AA displayed a linear response in the concentration range of 6.6 to 99.9 μM and 6.6 to 131.5 μM respectively. Very low detection limits of 0.0161 μM for DA in presence of 39.8 μM AA and 0.0227 μM for AA in presence of 39.8 μM DA were estimated in micellar phase of [DDMIM][Cl].

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Sensitive electrochemical sensing of acetaminophen and hydroquinone over single-pot synthesized stabilizer free Ag/Ag-oxide-graphene nanocomposites

Cited by 28 publications

References 61 publications

Co/Co₃O₄ Nanoparticles Coupled with Hollow Nanoporous Carbon Polyhedrons for the Enhanced Electrochemical Sensing of Acetaminophen

Co/Co₃O₄ Nanoparticles Coupled with Hollow Nanoporous Carbon Polyhedrons for the Enhanced Electrochemical Sensing of Acetaminophen

PdAg Bimetallic Nanoalloy-Decorated Graphene: A Nanohybrid with Unprecedented Electrocatalytic, Catalytic, and Sensing Activities

Imidazolium Based Surface Active Ionic Liquids as Novel Micellar Media for Simultaneous and Sensitive Electrochemical Detection of Dopamine and Ascorbic Acid

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Sensitive electrochemical sensing of acetaminophen and hydroquinone over single-pot synthesized stabilizer free Ag/Ag-oxide-graphene nanocomposites

Cited by 28 publications

References 61 publications

Co/Co3O4 Nanoparticles Coupled with Hollow Nanoporous Carbon Polyhedrons for the Enhanced Electrochemical Sensing of Acetaminophen

Co/Co3O4 Nanoparticles Coupled with Hollow Nanoporous Carbon Polyhedrons for the Enhanced Electrochemical Sensing of Acetaminophen

PdAg Bimetallic Nanoalloy-Decorated Graphene: A Nanohybrid with Unprecedented Electrocatalytic, Catalytic, and Sensing Activities

Imidazolium Based Surface Active Ionic Liquids as Novel Micellar Media for Simultaneous and Sensitive Electrochemical Detection of Dopamine and Ascorbic Acid

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Co/Co₃O₄ Nanoparticles Coupled with Hollow Nanoporous Carbon Polyhedrons for the Enhanced Electrochemical Sensing of Acetaminophen

Co/Co₃O₄ Nanoparticles Coupled with Hollow Nanoporous Carbon Polyhedrons for the Enhanced Electrochemical Sensing of Acetaminophen