Design of binary SnO2-CuO nanocomposite for efficient photocatalytic degradation of malachite green dye

Kumar, Aniket; Rout, Lipeeka; Achary, L. Satish K.; Mohanty, Anurag; Marpally, Jyoshna; Chand, Pradyumna Kumar; Dash, Priyabrat

doi:10.1063/1.4945147

Cited by 15 publications

(7 citation statements)

References 13 publications

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“…Additionally, the VB holes interact with water molecules and hydroxide ions to produce OH . [50, 51]. These oxidants, which include OH .…”

Section: Resultsmentioning

confidence: 99%

Green synthesis of tellurium‐doped SnO₂ nanoparticles with sulfurized g‐C₃N₄: Insights into methylene blue photodegradation and antibacterial capability

Umar,

Ajaz,

Javed

et al. 2024

Luminescence

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The construction of SnO2 nanoparticles (NPs), specifically Te‐doped SnO2 NPs, using a simple and economical co‐precipitation technique has been thoroughly described in this work. NH3 served as the reducing agent in this procedure, whilst polyethylene glycol served as the capping agent. The primary goals of our work were to investigate the physicochemical properties of the synthesized SnO2 NPs and assess their potential use as antibacterial agents and photocatalysts. Scanning electron microscopy–energy dispersive X‐ray, ultraviolet light, Fourier transform infrared spectroscopy, X‐ray diffraction (XRD), and other analytical techniques were used to thoroughly analyze the NPs. Based on the full width at half maximum of the most noticeable peaks in the XRD spectrum, the Debye–Scherrer equation was used to calculate the crystallite sizes, which indicated the presence of a single tetragonal SnO2 phase. Particularly noteworthy was the exceptional photocatalytic activity of graphene‐assisted Te‐doped SnO2 NPs, achieving an impressive decomposition efficiency of up to 98% in the photo‐oxidation of methylene blue. Furthermore, our investigation delved into the antibacterial attributes of the synthesized SnO2 NPs against Escherichia coli and Staphylococcus aureus, demonstrating inhibitory effects on both bacteria strains. This suggests potential applications for these NPs in various environmental and medical contexts.

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“…Additionally, the VB holes interact with water molecules and hydroxide ions to produce OH . [50, 51]. These oxidants, which include OH .…”

Section: Resultsmentioning

confidence: 99%

Green synthesis of tellurium‐doped SnO₂ nanoparticles with sulfurized g‐C₃N₄: Insights into methylene blue photodegradation and antibacterial capability

Umar,

Ajaz,

Javed

et al. 2024

Luminescence

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“…When compared with other metal oxides, it is found that undoped TiO 2 NPs and F doped TiO 2 NPs photocatalytically degraded 99.9 and 54.26% MG dye in 240 min and 120 min, respectively (Chen et al, 2007;Panahian and Arsalani, 2017). Sn doped TiO 2 has been reported degrading 85% MG in 340 min under light irradiation (Sayilkan et al, 2007), while SnO 2 NPs degraded 27% MG in 180 min under UV light irradiation (Kumar et al, 2016).…”

Section: Photocatalytic Dye Degradationmentioning

confidence: 95%

“…Moreover, holes in the valence band react with water molecules or hydroxide ions to produce hydroxyl radicals (OH . ) (Kumar et al, 2016;Ma et al, 2018). The generated oxidizing agents (superoxide radical anions and hydroxyl radicals) contributed to the oxidative degradation of malachite green, which was then converted into simple and less harmful products.…”

Section: Photocatalytic Dye Degradationmentioning

confidence: 99%

Synthesis, Antimicrobial Activity, and Photocatalytic Performance of Ce Doped SnO2 Nanoparticles

Bhawna

Choudhary

Gupta

et al. 2020

Front. Nanotechnol.

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This work represented the synthesis of Ce doped SnO2 nanoparticles by a wet chemical method and was characterized by various characterization techniques. PXRD confirmed the presence of the rutile phase for Ce doped SnO2 nanoparticles. SEM image and elemental mapping showed agglomerated irregular shaped particles and uniform distribution of 5% Ce ions within the SnO2 lattice, respectively. Ce doped SnO2 nanoparticles showed antimicrobial activity against E. coli and prevented the growth of bacteria. The nanoparticles were found photocatalytic active and photocatalytic behavior was elucidated by the degradation of Malachite Green dye under UV light irradiation.

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“…Efficiently, the hydroxyl radicals (OH˙) and the superoxide radicals (O 2 ˙−) hit the CR and MB molecules in the dirty solution and finally decompose them to non-toxic molecules (H 2 O and CO 2 ). The total steps of the photocatalytic mechanism can be illuminated through the following chemical reaction [33][34][35][36][37][38]:…”

Section: Photocatalytic Properties Under Sunlightmentioning

confidence: 99%

Microwave-synthesized ZrO2/ZnO heterostructures: fast and high charge separation solar catalysts for dyes-waste degradation

Wahba

Yakout

2022

J Sol-Gel Sci Technol

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In 60 min, microwave-synthesized ZrO2/ZnO heterostructures exhibited high and fast sunlight photodegradation efficiencies for 50 ppm Congo red (CR) and 50 ppm methylene blue (MB) pollutants. ZrO2/ZnO heterostructures were characterized by XRD, SEM, EDX, FTIR, and diffuse reflectance (DR) techniques. The XRD analysis showed that these heterostructures have combined components of tetragonal ZrO2 and hexagonal ZnO phases. The SEM micrographs of all ZrO2/ZnO nanocomposites demonstrate the formation of nanospherical particles (major) and rod-like (minor) structures. The EDX spectra verified the presence of Zr, Zn and O elements with percentage ratios equivalent or close to that used during the experimental preparation. The FT-IR spectra showed the vibrational characteristic absorption modes of ZrO2 and ZnO bonds around 400–600 cm−1. Two band gap energies were estimated corresponding to ZrO2 (5.05–5.16 eV) and ZnO (3.1–3.16 eV) components. Remarkably, in presence of ZrO2/ZnO (30/70 at%) heterostructure, the free solar energy initiated photodegradation efficiencies of 87% and 98% for 50 ppm CR and 50 ppm MB dyes after 60 min, respectively, which indicates the fast and superior photocatalytic activity of microwave-synthesized ZrO2/ZnO heterostructure. As well, this composition reveals good reusability and stability for three photocatalytic cycles. This uppermost photodegradation performance can be assigned to the high separation of charge carriers, especially for the ZrO2/ZnO (30/70 at%) nanocomposite.

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Design of binary SnO2-CuO nanocomposite for efficient photocatalytic degradation of malachite green dye

Cited by 15 publications

References 13 publications

Green synthesis of tellurium‐doped SnO₂ nanoparticles with sulfurized g‐C₃N₄: Insights into methylene blue photodegradation and antibacterial capability

Green synthesis of tellurium‐doped SnO₂ nanoparticles with sulfurized g‐C₃N₄: Insights into methylene blue photodegradation and antibacterial capability

Synthesis, Antimicrobial Activity, and Photocatalytic Performance of Ce Doped SnO2 Nanoparticles

Microwave-synthesized ZrO2/ZnO heterostructures: fast and high charge separation solar catalysts for dyes-waste degradation

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Design of binary SnO2-CuO nanocomposite for efficient photocatalytic degradation of malachite green dye

Cited by 15 publications

References 13 publications

Green synthesis of tellurium‐doped SnO2 nanoparticles with sulfurized g‐C3N4: Insights into methylene blue photodegradation and antibacterial capability

Green synthesis of tellurium‐doped SnO2 nanoparticles with sulfurized g‐C3N4: Insights into methylene blue photodegradation and antibacterial capability

Synthesis, Antimicrobial Activity, and Photocatalytic Performance of Ce Doped SnO2 Nanoparticles

Microwave-synthesized ZrO2/ZnO heterostructures: fast and high charge separation solar catalysts for dyes-waste degradation

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Green synthesis of tellurium‐doped SnO₂ nanoparticles with sulfurized g‐C₃N₄: Insights into methylene blue photodegradation and antibacterial capability

Green synthesis of tellurium‐doped SnO₂ nanoparticles with sulfurized g‐C₃N₄: Insights into methylene blue photodegradation and antibacterial capability