Solar-assisted photodegradation of methyl orange using Cu-doped ZnO nanorods

Perillo, P.M.; Atia, M.N.

doi:10.1016/j.mtcomm.2018.09.010

Cited by 44 publications

(15 citation statements)

References 44 publications

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“…8,9 Doping with transition metals has gained attention due to the generation of defects in the crystalline structure of the materials, where these defects act as centers of impediment in the recombination of the e À /h + pairs. 10 In addition, transition metals act to create intermediate levels between the VB and CB, reducing the Egap so that higher wavelengths of radiation can be absorbed. 10,11 Kalita et al 12 showed that obtaining Mn 2+ -doped ZnO nanoparticles with larger crystallite sizes (20 nm) optimizes photocatalytic activity, where, for smaller crystallite sizes, doping did not significantly improve.…”

Section: Introductionmentioning

confidence: 99%

“…10 In addition, transition metals act to create intermediate levels between the VB and CB, reducing the Egap so that higher wavelengths of radiation can be absorbed. 10,11 Kalita et al 12 showed that obtaining Mn 2+ -doped ZnO nanoparticles with larger crystallite sizes (20 nm) optimizes photocatalytic activity, where, for smaller crystallite sizes, doping did not significantly improve.…”

Section: Introductionmentioning

confidence: 99%

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Synthesis and Characterization of Co2+ and Mn2+ Codoped ZnO Nanoparticles Obtained by the Sonochemical Method: Photocatalytic and Antimicrobial Properties

Neto

Oliveira

Bomio

et al. 2019

Journal of Elec Materi

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Nanoparticles of Co 2+ and Mn 2+ codoped ZnO have been obtained by the sonochemical method. The nanoparticles were characterized by x-ray diffraction, scanning electron microscopy, ultraviolet-visible spectroscopy, N 2 adsorption by the Brunauer-Emmett-Teller method and electrical measurements by current-voltage curves. The photocatalytic property was analyzed against the methylene blue (MB) dye and the antimicrobial properties were estimated against the Staphylococcus aureus (Gram-positive) and Escherichia coli (Gram-negative) bacteria by the disc diffusion method. The results indicate that ZnO powders were obtained without the formation of secondary phases, with initial nanoplate morphology, which is lost with doping. The codoped sample had a five-fold higher electrical response, reduced the MB dye concentration by 10% and increased the inhibition halo by 3 cm and 4 cm against S. aureus and E. coli, respectively, compared to bare ZnO.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Synthesis and Characterization of Co2+ and Mn2+ Codoped ZnO Nanoparticles Obtained by the Sonochemical Method: Photocatalytic and Antimicrobial Properties

Neto

Oliveira

Bomio

et al. 2019

Journal of Elec Materi

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“…Photocatalytic experiments were carried out as follows, with a reference to a relevant scientific work [ 50 ]. To 125 mL of MB (10 ppm) solution, 25 mg of catalyst was added.…”

Section: Methodsmentioning

confidence: 99%

Biogenic Synthesis of Cu‐Doped ZnO Photocatalyst for the Removal of Organic Dye

Lemecho

Sabir

Andoshe

et al. 2022

Bioinorganic Chemistry and Applications

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The Cu-doped ZnO photocatalysts were prepared with a green and coprecipitation approach by using water hyacinth (Eichhornia crassipes) aquatic plant extract. In the preparation process, different amount of copper precursors such as 1, 2, 3, 4, and 5% of molar ratio were added to zinc nitrate precursors and abbreviated as Cu-ZnO (1%), Cu-ZnO (2%), Cu-ZnO (3%), Cu-ZnO (4%), and Cu-ZnO (5%), respectively. The characterization of the obtained samples was carried out, and the removal of the methylene blue (MB) dye was examined. Out of all catalysts, Cu-ZnO (3%) had the best photocatalytic performance and 89% of the MB dye was degraded. However, the degradation performances of blank (without catalysts), ZnO, Cu-ZnO (1%), Cu-ZnO (2%), Cu-ZnO (4%), and Cu-ZnO (5%) catalysts were 6, 54, 69, 83, 80, and 73%, respectively. Therefore, the use of water hyacinth plant extract with the optimum amount of Cu added to ZnO during the preparation of the catalyst could have a promising application in the degradation of organic pollutants.

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“…Even while UV light only accounts for 5% of solar radiation, it is nonetheless quite effective, making the visible spectrum—which accounts for 45% of solar energy—essential for practical uses. [ 338–341 ]…”

Section: Applications Of Plasmonic Znomentioning

confidence: 99%

Plasmonic Solar Energy Harvesting by ZnO Nanostructures and Their Composite Interfaces: A Review on Fundamentals, Recent Advances, and Applications

et al. 2023

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Zinc oxide is one of the inexpensive semiconductors with rich electronic and optical properties. It is studied in energy applications for a long time. The wide bandgap of ZnO either needs structural change or sensitizing via quantum dots, dyes, or metallic nanoparticles (through the plasmonic effect) to absorb visible light for applications in solar energy harvesting devices. This review provides a fundamental insight of plasmonic visible light harvesting by ZnO and an account of recent advances in solar photovoltaic, photoelectrochemical water splitting, and other photoredox activities, such as water quality enhancement and CO2 reduction.

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Solar-assisted photodegradation of methyl orange using Cu-doped ZnO nanorods

Cited by 44 publications

References 44 publications

Synthesis and Characterization of Co2+ and Mn2+ Codoped ZnO Nanoparticles Obtained by the Sonochemical Method: Photocatalytic and Antimicrobial Properties

Synthesis and Characterization of Co2+ and Mn2+ Codoped ZnO Nanoparticles Obtained by the Sonochemical Method: Photocatalytic and Antimicrobial Properties

Biogenic Synthesis of Cu‐Doped ZnO Photocatalyst for the Removal of Organic Dye

Plasmonic Solar Energy Harvesting by ZnO Nanostructures and Their Composite Interfaces: A Review on Fundamentals, Recent Advances, and Applications

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