Hydrogen Peroxide Assisted Photocatalytic Dye Degradation Over Reduced Graphene Oxide Integrated ZnCr2O4 Nanoparticles

Tantubay, Kartik; Das, Piu; Baskey, Moni

doi:10.21203/rs.3.rs-794253/v1

Cited by 3 publications

(1 citation statement)

References 13 publications

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“…As a result, the probability of electron-hole recombination rate will be reduced. The produced superoxide radical anions and hydroxyl radicals are expected to be responsible to breakdown the dye molecules [31].…”

Section: Ftir Analysismentioning

confidence: 99%

Effect of Fe Doping on Photocatalytic Dye-Degradation and Antibacterial Activity of SnO₂ Nanoparticles

Preethi¹,

Senthil

Pachamuthu³

et al. 2022

Adsorption Science & Technology

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A simple hydrothermal method is utilized to synthesize iron-doped tin oxide nanoparticles (Fe-SnO2 NPs) at various doping concentrations. The structural characterization using XRD, Raman, and FTIR measurements confirmed the incorporation of Fe ions into the SnO2 lattice without any deviation in the tetragonal crystal system of SnO2 nanoparticles. SEM and HRTEM images show the spherical-shaped nanoparticles with agglomeration. The values of interplanar spacing ( d -value) calculated from the HRTEM lattice are consistent with the XRD results. Further, optical analysis revealed a red shift in the optical absorption band and a decrease in the band gap energy with an increase in Fe-dopant concentration. The decrease of PL emission peak intensity with Fe doping revealed the generation of singly charged oxygen vacancies. The H2O2-assisted photocatalytic degradation efficiency of Fe-SnO2 NPs investigated against crystal violet dye indicated an efficiency of 98% for 0.05 M Fe-SnO2 NPs within 30 minutes under visible light illumination. In addition, the effects of pH, scavengers, and reusability of the catalyst are tested. The antibacterial behavior of Fe-SnO2 NPs against Escherichia coli is examined by using the colony count method, and the inhibition rate was found to be 49, 65, 70, and 78% for pure, 0.01, 0.03, and 0.05 M Fe-SnO2 NPs, respectively.

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Section: Ftir Analysismentioning

confidence: 99%

Effect of Fe Doping on Photocatalytic Dye-Degradation and Antibacterial Activity of SnO₂ Nanoparticles

Preethi¹,

Senthil

Pachamuthu³

et al. 2022

Adsorption Science & Technology

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Exploring graphene and its derivatives for various applications: photocatalysis

Trivedi,

Naik,

Patil

2024

Chem. Pap.

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Green Synthesis of recyclable reduced graphene oxide-gold nanocatalyst using Alstonia scholaris: Applications in waste water purification and microbial field

Das

Bairy

Ghosh

et al. 2022

Preprint

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A novel green synthesis of reduced gold-graphene oxide (Au-RGO) nanocomposite was fabricated through simple heating method using Alstonia scholaris ( A .scholaris) bark extract. The synthesized nanocatalyst was characterized by X-ray diffraction (XRD), UV-Visible spectroscopy, Fourier transformed infrared spectroscopy (FT-IR). Transmission electron microscopy (TEM) and size distribution study have been investigated to find the dimension of the gold nanoparticles (Au NPs) grown on reduced graphene oxide (RGO) surface. Subsequently, both the catalytic and photocatalytic performances of this nanocomposite were evaluated by using different organic hazardous dyes and a tentative photocatalytic reaction mechanism was discussed depending on the energy band position. To find the effect on different bacterial strains, antibacterial and antiprotozoal studies have been carried out with this nanocomposite.

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Hydrogen Peroxide Assisted Photocatalytic Dye Degradation Over Reduced Graphene Oxide Integrated ZnCr2O4 Nanoparticles

Cited by 3 publications

References 13 publications

Effect of Fe Doping on Photocatalytic Dye-Degradation and Antibacterial Activity of SnO₂ Nanoparticles

Effect of Fe Doping on Photocatalytic Dye-Degradation and Antibacterial Activity of SnO₂ Nanoparticles

Exploring graphene and its derivatives for various applications: photocatalysis

Green Synthesis of recyclable reduced graphene oxide-gold nanocatalyst using Alstonia scholaris: Applications in waste water purification and microbial field

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Hydrogen Peroxide Assisted Photocatalytic Dye Degradation Over Reduced Graphene Oxide Integrated ZnCr2O4 Nanoparticles

Cited by 3 publications

References 13 publications

Effect of Fe Doping on Photocatalytic Dye-Degradation and Antibacterial Activity of SnO2 Nanoparticles

Effect of Fe Doping on Photocatalytic Dye-Degradation and Antibacterial Activity of SnO2 Nanoparticles

Exploring graphene and its derivatives for various applications: photocatalysis

Green Synthesis of recyclable reduced graphene oxide-gold nanocatalyst using Alstonia scholaris: Applications in waste water purification and microbial field

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Product

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Effect of Fe Doping on Photocatalytic Dye-Degradation and Antibacterial Activity of SnO₂ Nanoparticles

Effect of Fe Doping on Photocatalytic Dye-Degradation and Antibacterial Activity of SnO₂ Nanoparticles