ZnO/BaO nanocomposites: a promising photocatalyst in degrading anionic and cationic dyes under UV and visible light and an efficient antibacterial agent

Umadevi, M.; Parimaladevi, R.; Anuratha, M.

doi:10.1007/s10971-021-05667-y

Cited by 7 publications

(3 citation statements)

References 38 publications

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“…This degradation rate within the 11 min. was higher than the values obtained with other ZnO nanoparticles previously reported in the literature [6,15,44,45] . The fast degradation time was explained due to the application of different synthesis methods, different particle sizes, different catalyst crystallites and variation in surface area.…”

Section: Resultscontrasting

confidence: 59%

“…was higher than the values obtained with other ZnO nanoparticles previously reported in the literature. [6,15,44,45] The fast degradation time was explained due to the application of different synthesis methods, different particle sizes, different catalyst crystallites and variation in surface area. When compared to previous studies performed, the present ZnO nanoparticles prepared by this chemical decomposition method in an aqueous A.A. solution indicated higher degradation efficiency.…”

Section: Effect Of Calcination Temperature On Degradation Of Mbmentioning

confidence: 99%

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Facile Fabrication of ZnO Nanoparticles for efficient dye degradation: Effect of Adipic Acid in photocatalytic activity

Demir¹,

Özbay²,

Kamış³

et al. 2023

ChemistrySelect

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Photocatalysis is the most environmentally benign and efficient method for degrading organic dyes in water purification. Herein, the synthesis of ZnO nanoparticles was achieved by simple homogeneous chemical precipitation via the support of adipic acid and followed the calcination process at elevated temperatures. Based on the physical and morphological characterization analysis, the high crystallinity hexagonal structure with uniform granular shape morphology of the ZnO nanoparticles was formed with a band gap of 3.2 eV. The photocatalytic performance of the ZnO nanoparticles was investigated with the degradation of methylene blue (M.B.) dye as a model compound in an aqueous medium under UV light irradiation. The optimal ZnO‐700 nanoparticles demonstrated the highest photocatalytic activity thanks to their large surface area and numerous oxygen vacancies. More importantly, a small amount of photocatalyst (0.4 g/L) successfully degraded M.B. dye from an aqueous solution with 100 % efficiency within just 11 minutes of irradiation time under UV light with protective photocatalytic activity 4 sequential cycles. Besides, in‐depth photocatalysis experiments present that via a facile two‐step synthesis method, the as‐prepared ZnO photocatalysts depict enhanced chemical stability in a harsh environment and efficient photodegradation.

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Section: Resultscontrasting

confidence: 59%

Section: Effect Of Calcination Temperature On Degradation Of Mbmentioning

confidence: 99%

Facile Fabrication of ZnO Nanoparticles for efficient dye degradation: Effect of Adipic Acid in photocatalytic activity

Demir¹,

Özbay²,

Kamış³

et al. 2023

ChemistrySelect

View full text Add to dashboard Cite

show abstract

“…At the same time, the PL intensity of the ZAg core–shell has significantly reduced, indicating that the recombination between photo-electrons generated and holes has decreased. Additionally, pure Z and ZAg as a heterostructure have a synergistic effect of reducing PL intensity, which increases the lifetime of electron stability 65 , 66 .…”

Section: Resultsmentioning

confidence: 99%

Preparation of thiourea derivative incorporated Ag3PO4 core shell for enhancement of photocatalytic degradation performance of organic dye under visible radiation light

El-Shamy,

Selim,

Elkholy

et al. 2024

Sci Rep

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Photocatalysis is a promising technique to reduce hazardous organic pollutants using semiconductors under visible light. However, previous studies have been concerned with the behavior of silver phosphate (Ag3PO4) as n-type semiconductors, and the problem of their instability is still under investigation. Herein, 4,4′-(((oxalylbis(azanediyl)) bis(carbonothioyl)) bis(azanediyl)) dibenzoic acid is synthesized by green method and used to enhance the photocatalytic behavior for Ag3PO4. The incorporated Ag3PO4 core–shell is prepared and characterized via XRD, FT-IR, Raman, TEM and BET. Besides, the thermal stability of the prepared core shell was investigated via TGA and DSC measurements. The optical properties and the energy band gap are determined using photoluminescence and DRS measurements. The photodegradation of methylene blue in the presence of the synthesized Ag3PO4 core–shell under visible light is examined using UV/Vis measurements. The effect of initial dye concentration and contact time are studied. In addition, the kinetic behavior of the selected dye during the photodegradation process shows a pseudo-first order reaction with rate constant of 0.015 min−1 for ZAg. The reusability of the Ag3PO4 core shell is evaluated, and the efficiency changed from 96.76 to 94.02% after three cycles, indicating efficient photocatalytic behavior with excellent stability.

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Hybrid nanostructures exhibiting both photocatalytic and antibacterial activity—a review

Jana,

Chatterjee

2023

Environ Sci Pollut Res

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ZnO/BaO nanocomposites: a promising photocatalyst in degrading anionic and cationic dyes under UV and visible light and an efficient antibacterial agent

Cited by 7 publications

References 38 publications

Facile Fabrication of ZnO Nanoparticles for efficient dye degradation: Effect of Adipic Acid in photocatalytic activity

Facile Fabrication of ZnO Nanoparticles for efficient dye degradation: Effect of Adipic Acid in photocatalytic activity

Preparation of thiourea derivative incorporated Ag3PO4 core shell for enhancement of photocatalytic degradation performance of organic dye under visible radiation light

Hybrid nanostructures exhibiting both photocatalytic and antibacterial activity—a review

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