Structural and optical properties of MgNb2O6 NPs: Its potential application in photocatalytic and pharmaceutical industries as sensor

Basavaraju, N.; Prashantha, S.C.; Surendra, B.S.; Shekhar, T.R. Shashi; Kumar, Manjeet; Ravikumar, C.R.; Raghavendra, N.; Shashidhara, T.S.

doi:10.1016/j.enmm.2021.100581

Cited by 20 publications

(7 citation statements)

References 43 publications

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“…All the Bragg's reflections at (011), (101), (111), ( 200), (021), (022), (112), ( 221), ( 131) and (311) of the host ZrO 2 nanoparticles were in compliance with the data associated with the JCPDS Card No: 37-1484 and were well matched with the monoclinic phases of the synthesized MZNPs. 18 The nature of the peak patterns confirmed the crystallinity and monoclinic-type structure of the MZNPs. The average particle size of the synthesized MZNPs was found to be in the range of 25-38 nm using Scherrer's formula (eqn (1)).…”

Section: Pxrd Analysismentioning

confidence: 66%

Effective paracetamol sensor activity, thermal barrier coating (TBC), and UV-light-driven photocatalytic studies of Zr_xO₂:Mg²⁺_(1−x) nanoparticles

Surendra

Gurushantha²,

Anantharaju

et al. 2023

New J. Chem.

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Section: Pxrd Analysismentioning

confidence: 66%

Effective paracetamol sensor activity, thermal barrier coating (TBC), and UV-light-driven photocatalytic studies of Zr_xO₂:Mg²⁺_(1−x) nanoparticles

Surendra

Gurushantha²,

Anantharaju

et al. 2023

New J. Chem.

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“…This degradation experiment was conducted within a glass reactor, where 20 mg of the catalyst was meticulously added to solutions containing 20 ppm of AR-88. [33,34] Subsequently, the reaction mixture was subjected to UV light irradiation, employing a 125 W pressure Hg lamp. To monitor the progress of the degradation process, aliquots of 5 mL were systematically extracted at 15-minute intervals during the reaction, with a maximum reaction time of 120 min for analysis.…”

Section: Resultsmentioning

confidence: 99%

A Sustainable Combustion Process for Green Synthesis of TiO₂ Nanoparticles: Applications in Photocatalytic Degradation and Electrochemical Sensing for Environmental Remediation

Basavaraja,

Ravikumar,

Khan

et al. 2024

ChemistrySelect

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Herein, a sustainable approach to combustion has been presented, utilizing Aloe Vera latex as a reducing agent in synthesizing titanium dioxide (TiO2) nanoparticles. The phase and composition of TiO2 have been confirmed using X‐ray diffraction, while the band gap has been determined as 3.17 eV using the Kubelka‐Monk plot. The photocatalytic potential of the TiO2 has been explored by assessing their effectiveness in degrading AR‐88 dye, demonstrating significant activity at 500 nm. Remarkably, in a span of 120 min of UV radiation, AR‐88 dye could reach an impressive photodegradation rate of 98.6 %, rendering the dye nearly colorless. TiO2 NPs have also been investigated as an electrode material in sensing paracetamol and D‐glucose by coating them onto a carbon paste electrode and immersing them in a 1 M KOH solution. The cyclic voltammetry experiments reveal that the TiO2 NPs possess excellent electrochemical characteristics, with a calculated proton diffusion coefficient of 5.651×10−4 cm2 s−1. These findings underscore the potential of TiO2 as a highly desirable electrode material with remarkable electrochemical properties. This research opens new avenues for utilizing TiO2 NPs in various electrochemical applications, particularly in the detection of pharmaceutically important compounds, highlighting its versatility.

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“…In the photocatalytic dye decoloration reaction, the water and oxygen molecules are directly influencing the formation of superoxide radicals (O 2 •– ) by the presence of e – in the conduction band (eq ) and hydroxyl radicals (OH •– ) (eq ) by the presence of holes in the valence band, respectively. The generated radicals play a vital role in the photocatalytic dye decoloration activities by braking of complex dye structures into eco-friendly byproducts. , normalA normalg ( C u O − C u 2 O ) normalC normalu + normalh ν ( l i g h t e n e r g y ) → normalA normalg ( C u O C u 2 O ) normalC normalu * ( e n e r g y ) normalA normalg false( normalC normalu normalO − normalC normalu 2 normalO false) normalC normalu * ( e n e r g y ) .25em → normalA …”

Section: Photocatalytic Studies Of C3 and C3ag5 Nanocompositesmentioning

confidence: 99%

“…The generated radicals play a vital role in the photocatalytic dye decoloration activities by braking of complex dye structures into eco-friendly byproducts. 44 , 45 …”

Section: Photocatalytic Studies Of C3 and C3ag5 Nanocompositesmentioning

confidence: 99%

Section: Photocatalytic Studies Of C3 and C3ag5 Nanocompositesmentioning

confidence: 99%

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Influence of Ag on the Structural, Electrochemical, Antibacterial, and Photocatalytic Performance of the (CuO–Cu₂O)Cu Nanocomposite

et al. 2023

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The cost-effective novel Ag-doped (1–7%) (CuO–Cu2O)Cu (C3) heterostructured nanocomposites are successfully synthesized by the facile solution combustion process using the Leucas aspera extract as a green fuel. The structural properties of fabricated nanocomposites were well-characterized by specific spectral techniques for enhanced electrochemical sensor detection, antibacterial activities, and sunlight-driven photocatalytic dye decoloration studies. The existence of Ag+ ions has been confirmed by the appearance of two peaks of Ag 3d5/2 (367.9 eV) and Ag 3d3/2 (373.9 eV), with the chemical binding nature and exchange of the Ag+ state in the nanocomposite lattice as revealed by X-ray photoelectron spectroscopy analysis. The energy band gap value of the doped nanocomposite decreases from 2.2 to 1.8 eV, as measured by the UV–visible absorption spectral technique, hindering the recombination of electron–holes pairs by trapping e– and h+. This result supports that the C3Ag5 nanocomposite has a great potential as a sunlight photocatalyst toward the Alizarin Red (AR) dye, for which an excellent degradation activity of 98% at 180 min was achieved compared to that of the host nanocomposite (78% at 180 min). The variation of redox peak potentials of the prepared graphite nanocomposite working electrode is an effective tool for paracetamol sensing activity in 0.1 M KCl using electrochemical spectral studies. In addition, the antibacterial activities of the C3Ag5 nanocomposite against Escherichia coli and Staphylococcus aureus were successfully studied. The C3Ag5 nanocomposite exhibited a better performance than C3. The increase in activity is attributed to the presence of Ag as a dopant.

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Structural and optical properties of MgNb2O6 NPs: Its potential application in photocatalytic and pharmaceutical industries as sensor

Cited by 20 publications

References 43 publications

Effective paracetamol sensor activity, thermal barrier coating (TBC), and UV-light-driven photocatalytic studies of Zr_xO₂:Mg²⁺_(1−x) nanoparticles

Effective paracetamol sensor activity, thermal barrier coating (TBC), and UV-light-driven photocatalytic studies of Zr_xO₂:Mg²⁺_(1−x) nanoparticles

A Sustainable Combustion Process for Green Synthesis of TiO₂ Nanoparticles: Applications in Photocatalytic Degradation and Electrochemical Sensing for Environmental Remediation

Influence of Ag on the Structural, Electrochemical, Antibacterial, and Photocatalytic Performance of the (CuO–Cu₂O)Cu Nanocomposite

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Structural and optical properties of MgNb2O6 NPs: Its potential application in photocatalytic and pharmaceutical industries as sensor

Cited by 20 publications

References 43 publications

Effective paracetamol sensor activity, thermal barrier coating (TBC), and UV-light-driven photocatalytic studies of ZrxO2:Mg2+(1−x) nanoparticles

Effective paracetamol sensor activity, thermal barrier coating (TBC), and UV-light-driven photocatalytic studies of ZrxO2:Mg2+(1−x) nanoparticles

A Sustainable Combustion Process for Green Synthesis of TiO2 Nanoparticles: Applications in Photocatalytic Degradation and Electrochemical Sensing for Environmental Remediation

Influence of Ag on the Structural, Electrochemical, Antibacterial, and Photocatalytic Performance of the (CuO–Cu2O)Cu Nanocomposite

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Effective paracetamol sensor activity, thermal barrier coating (TBC), and UV-light-driven photocatalytic studies of Zr_xO₂:Mg²⁺_(1−x) nanoparticles

Effective paracetamol sensor activity, thermal barrier coating (TBC), and UV-light-driven photocatalytic studies of Zr_xO₂:Mg²⁺_(1−x) nanoparticles

A Sustainable Combustion Process for Green Synthesis of TiO₂ Nanoparticles: Applications in Photocatalytic Degradation and Electrochemical Sensing for Environmental Remediation

Influence of Ag on the Structural, Electrochemical, Antibacterial, and Photocatalytic Performance of the (CuO–Cu₂O)Cu Nanocomposite