Photocatalytic and electrochemical sensor for direct detection of paracetamol comprising γ-aluminium oxide nanoparticles synthesized via sonochemical route

Kusuma, K.B.; Manju, M.; Ravikumar, C.R.; Nagaswarupa, H.P.; Amulya, M.A. Shilpa; Anilkumar, M.; Avinash, B.; Gurushantha, K.; Ravikantha, N.

doi:10.1016/j.sintl.2020.100039

Cited by 44 publications

(13 citation statements)

References 35 publications

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“…This can be attributed to the fact that the ions in the electrolyte will have sufficient time to penetrate into the electrode material at a lower scan rate, whereas at a higher scan rate, the ions will simply collect on the electrode material's outer surface [52]. This results in a decrease in the values of specific capacitance as a result of an increase in scan rate as well [53].…”

Section: Mechanism Of Photocatalytic Degradationmentioning

confidence: 99%

Probe Sonicated Synthesis of Bismuth Oxide (Bi₂O₃): Photocatalytic Application and Electrochemical Sensing of Ascorbic Acid and Lead

Kusuma¹,

Manju²,

Ravikumar³

et al. 2022

Journal of Nanomaterials

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A simple and low-cost and highly calibrated probe sonication method was used to prepare bismuth oxide nanoparticles (Bi2O3 NPs). The formation of a well-crystalline sample at the end of the product has been further calcined at 600°C for 2 hrs. The powder X-ray diffraction (PXRD) patterns of the NPs substantiated the monoclinic structure (space group P21/c), and the average crystallite size was found to be 60 nm, which was also confirmed by transmission electron microscopic (TEM) studies. Scanning electron microscopic (SEM) images depicted highly porous Bi2O3 NPs with little agglomeration. Utilizing diffused reflectance spectra (DRS) data, the energy bandgap ( E g ) value of 3.3 eV was deduced for Bi2O3 NPs, and their semiconductor behavior has been confirmed. Two dyes, methylene blue (MB) and acid green (AG) were utilized for degradation studies using Bi2O3 NPs under UV light irradiation (from 0 to 120 min). The photocatalytic degradation was found to be maximum for MB (93.45%) and AR (97.80%) dyes. Cyclic voltammetric (CV) and sensor studies using the electrochemical impedance spectroscopy (EIS) were performed. The specific capacitance value of 25.5 Fg-1 was deduced from the cyclic voltammograms of the Bi2O3 electrode in 0.1 N HCl with a scan rate of 10 to 50 mV/s. From the obtained EIS data, the Bi2O3 electrode showed pseudocapacitive characteristics. The prepared electrodes also exhibited high sensitivity towards the detection of ascorbic acid and lead. Hence, sonochemically synthesized Bi2O3 NPs are possibly hopeful for excellent photocatalytic and electrochemical sensing of biomolecules.

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Section: Mechanism Of Photocatalytic Degradationmentioning

confidence: 99%

Probe Sonicated Synthesis of Bismuth Oxide (Bi₂O₃): Photocatalytic Application and Electrochemical Sensing of Ascorbic Acid and Lead

Kusuma¹,

Manju²,

Ravikumar³

et al. 2022

Journal of Nanomaterials

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“…Alumina nanoparticles have got several applications due to attractive features such as catalysing electrochemical reactions and providing a large surface to volume ratio, which are useful in electrode fabrication (Kusuma et al 2020 ). Bimetallic nanoparticles have been broadly used in electrochemical sensing due to their unique features such as outstanding electro catalytic activity and quicker response rate (Zhang et al 2018 ).…”

Section: Introductionmentioning

confidence: 99%

Voltammetric analysis of epinephrine using glassy carbon electrode modified with nanocomposite prepared from Co-Nd bimetallic nanoparticles, alumina nanoparticles and functionalized multiwalled carbon nanotubes

Agrahari

Singh

Gautam

et al. 2022

Environ Sci Pollut Res

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Herein, we investigated the electrochemical behaviour of fMWCNTs decorated with Co-Nd bimetallic nanoparticles and alumina nanoparticles (Co-Nd/Al 2 O 3 @fMWCNTs). The nanocomposites were synthesised using simple mechanical mixing and characterised by FT-IR, XRD, UV–visible studies, SEM, TEM and EDAX. Moreover, the crystalline size of the synthesised nanoparticles was also calculated using XRD data (Debye–Scherer formula) and was found in the nm range. The electrochemical behaviour of epinephrine (EP) was examined in the presence of Co-Nd/Al 2 O 3 @fMWCNTs nanocomposite modified glassy carbon electrode (GCE) using various electrochemical techniques such as cyclic voltammetry (CV), differential pulse voltammetry (DPV), electrochemical impedance spectroscopy (EIS), and chronocoulometry. Among all the above-mentioned techniques, the DPV response of the modified Co-Nd/Al 2 O 3 @fMWCNTs/GCE under optimal circumstances revealed a dual linear range (0.2 to 4000 µM and 4000 to 14,000 µM) and LOD of 0.015 µM ( S / N = 3). The sensitivities were determined to be 0.00323 µAµM −1 and 0.0004 µAµM −1 in 0.2 to 4000 µM and 4000 to 14,000 µM concentration ranges. Using chronocoulometry, the surface coverage of Co-Nd/Al 2 O 3 @fMWCNTs/GCE was calculated to be 1.37 × 10 −8 mol cm −2 . The fabricated Co-Nd/Al 2 O 3 @fMWCNTs/GCE demonstrated remarkable repeatability, with an RSD of 0.09%, and storage stability of 3 weeks, with 89.6% current retention. Lastly, it was found that Co-Nd/Al 2 O 3 @fMWCNTs/GCE worked well for EP analysis in a variety of biological fluids. Graphical abstract

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“…Aluminum oxide nanoparticles (Al 2 O 3 NPs) is a type of metal oxide nanoparticle used in various biomedical purposes due to their unique physicochemical and structural properties, including resistance to wear, chemicals, and mechanical stresses, as well as good optical properties and a porous large surface area. Another reason for Al 2 O 3 NPs extensive use is their inexpensive preparation cost and ease of handling [ 8 , 9 ].…”

Section: Introductionmentioning

confidence: 99%

Ultrasensitive Functionalized Polymeric-Nanometal Oxide Sensors for Potentiometric Determination of Ranitidine Hydrochloride

et al. 2022

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Two metal oxide nanoparticles, magnesium oxide nanoparticles (MgONPs) and aluminum oxide nanoparticles (Al2O3NPs), were synthesized from green sources, Salvia officials and Cuminum cyminum seed extract, respectively. These nanoparticles were used for construction of potentiometric enhancement sensors employed for the estimation of ranitidine hydrochloride (RNT) in authentic powder and commercial products. The electroactive substance ranitidine-phosphotungstate (RNT-PT) was formed by combining RNT with phosphotungstic acid (PTA) in the presence of plasticizing material o-nitrophenyloctyl ether (o-NPOE). The outcomes showed that the enhanced MgO and Al2O3 nanosensors behaved linearly across the concentration ranges 1.0 × 10−9–1.0 × 10−2 and 1.0 × 10−10–1.0 × 10−2 mol L−1, respectively. However, the conventional sensor (RNT-PT) displayed a linearity over 1.0 × 10−6–1.0 × 10−2 mol L−1. Least square equations were calculated as EmV = (54.1 ± 0.5) log (RNT) + 762.33, EmV = (58.6 ± 0.2) log (RNT) + 696.48, and EmV = (52.2 ± 0.7) log (RNT) + 756.76 for enriched nanometal oxides modified and conventional sensors, respectively. The correlation coefficients of regression equations were 0.9997, 0.9995, and 0.9992 for the above suggested sensors, respectively. The recorded results showed excellent sensitivity and selectivity of the modified nanometal oxide sensors for the quantification of the analyzed drug in its authentic samples and commercial products.

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Photocatalytic and electrochemical sensor for direct detection of paracetamol comprising γ-aluminium oxide nanoparticles synthesized via sonochemical route

Cited by 44 publications

References 35 publications

Probe Sonicated Synthesis of Bismuth Oxide (Bi₂O₃): Photocatalytic Application and Electrochemical Sensing of Ascorbic Acid and Lead

Probe Sonicated Synthesis of Bismuth Oxide (Bi₂O₃): Photocatalytic Application and Electrochemical Sensing of Ascorbic Acid and Lead

Voltammetric analysis of epinephrine using glassy carbon electrode modified with nanocomposite prepared from Co-Nd bimetallic nanoparticles, alumina nanoparticles and functionalized multiwalled carbon nanotubes

Ultrasensitive Functionalized Polymeric-Nanometal Oxide Sensors for Potentiometric Determination of Ranitidine Hydrochloride

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Photocatalytic and electrochemical sensor for direct detection of paracetamol comprising γ-aluminium oxide nanoparticles synthesized via sonochemical route

Cited by 44 publications

References 35 publications

Probe Sonicated Synthesis of Bismuth Oxide (Bi2O3): Photocatalytic Application and Electrochemical Sensing of Ascorbic Acid and Lead

Probe Sonicated Synthesis of Bismuth Oxide (Bi2O3): Photocatalytic Application and Electrochemical Sensing of Ascorbic Acid and Lead

Voltammetric analysis of epinephrine using glassy carbon electrode modified with nanocomposite prepared from Co-Nd bimetallic nanoparticles, alumina nanoparticles and functionalized multiwalled carbon nanotubes

Ultrasensitive Functionalized Polymeric-Nanometal Oxide Sensors for Potentiometric Determination of Ranitidine Hydrochloride

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Probe Sonicated Synthesis of Bismuth Oxide (Bi₂O₃): Photocatalytic Application and Electrochemical Sensing of Ascorbic Acid and Lead

Probe Sonicated Synthesis of Bismuth Oxide (Bi₂O₃): Photocatalytic Application and Electrochemical Sensing of Ascorbic Acid and Lead