Development, optimization and characterization of a two step sol–gel synthesis route for ZnO/SnO2 nanocomposite

Das, Isha; Sagadevan, Suresh; Chowdhury, Zaira Zaman; Hoque, Md Enamul

doi:10.1007/s10854-017-8357-5

Cited by 18 publications

(6 citation statements)

References 34 publications

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“…A trace amount of cubic Cu 2 O is also present in the composite system (Figure b). Figure c shows the XRD pattern for ZnO–SnO 2 , which is matching well with the previous report . The peaks appeared at 2θ ∼ 30.8 and 34.5° correspond to the hexagonal phase of ZnO with (100) and (101) diffraction planes, respectively.…”

Section: Resultsmentioning

confidence: 69%

“…Figure 3c shows the XRD pattern for ZnO−SnO 2 , which is matching well with the previous report. 44 The peaks appeared at 2θ ∼ 30.8 and 34.5°c orrespond to the hexagonal phase of ZnO with (100) and (101) diffraction planes, respectively. However, the peaks appeared at 2θ ∼ 32.1, 42.7, and 62.7°correspond to the tetragonal crystalline phase of SnO 2 with (101), (120), and (310) planes, respectively.…”

Section: ■ Introductionmentioning

confidence: 99%

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Targeted and Enhanced Antimicrobial Inhibition of Mesoporous ZnO–Ag₂O/Ag, ZnO–CuO, and ZnO–SnO₂ Composite Nanoparticles

et al. 2021

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In this work, mesoporous (pore size below 4 nm) composite nanoparticles of ZnO–Ag2O/Ag, ZnO–CuO, and ZnO–SnO2 of size d ≤ 10 nm (dia.) have been synthesized through the in situ solvochemical reduction method using NaBH4. These composite nanoparticles exhibited excellent killing efficacy against Gram-positive/negative bacterial and fungal strains even at a very low dose of 0.010 μg/mL. Additionally, by applying the in silico docking approach, the nanoparticles and microorganism-specific targeted proteins and their interactions have been identified to explain the best anti-bacterial/anti-fungal activities of these composites. For this purpose, the virulence and resistance causing target proteins such as PqsR, RstA, FosA, and Hsp90 of Pseudomonas aeruginosa, Acinetobacter baumannii, Klebsiella pneumoniae, and Candida albicans have been identified to find out the best inhibitory action mechanisms involved. From the in vitro study, it is revealed that all the composite nanoparticle types used here can act as potent antimicrobial components. All the composite nanoparticles have exhibited excellent inhibition against the microorganisms compared to their constituent single metal or metal oxide nanoparticles. Among the nanoparticle types, the ZnO–Ag2O/Ag composite nanoparticles exhibited the best inhibition activity compared to the other reported nanoparticles. The microorganisms which are associated with severe infections lead to the multidrug resistance and have become a huge concern in the healthcare sector. Conventional organic antibiotics are less stable at a higher temperature. Therefore, based on the current demands, this work has been focused on designing inorganic antibiotics which possess stability even under harsh conditions. In this direction, our developed composite nanoparticles were explored for potential uses in the healthcare technology, and they may solve many problems in global emergency and epidemics caused by the microorganisms.

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Section: Resultsmentioning

confidence: 69%

Section: ■ Introductionmentioning

confidence: 99%

Targeted and Enhanced Antimicrobial Inhibition of Mesoporous ZnO–Ag₂O/Ag, ZnO–CuO, and ZnO–SnO₂ Composite Nanoparticles

et al. 2021

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“…at lower frequency level, but with enhanced temperatures it dropped significantly [28,29]. The magnitude of dielectric loss was increased with increasing temperature.…”

Section: Resultsmentioning

confidence: 91%

A one-step facile route synthesis of copper oxide/reduced graphene oxide nanocomposite for supercapacitor applications

Sagadevan

Chowdhury

Johan

et al. 2018

Journal of Experimental Nanoscience

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In this research, a one step, facile route has been undertaken to synthesise copper oxide/reduced graphene oxide (CuO/rGO) nanocomposites. X-ray powder diffraction analysis (XRD) was carried out to identity the crystalline structure and phase of the synthesised sample. Elemental analysis and surface morphological features were analysed using EDX and FESEM Images. Particle size as well as the shape of the as prepared composite was observed from HR-TEM images. Raman spectra illustrated the peak of the individual composite materials. The electrochemical properties of the prepared nanocomposite were investigated. The dielectric behaviour of the sample including dielectric constant, dielectric loss and AC conductivity was measured at various frequency levels. Temperature was varied accordingly to observe the effect of temperature on the dielectric properties of the sample.

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“…[47][48][49][50][51][52] In this context, the heterostructure SnO 2 /ZnO nanoparticles have been prepared by different methods like coprecipitation, 53,54 hydrothermal synthesis, 49,50 precipitation followed by hydrothermal, 55 sol-gel. 56,57 The SnO 2 /ZnO nanocomposites with a molar ratio Zn : Sn of 2 : 1 synthesised by coprecipitation method showed higher photocatalytic degradation of methyl orange (MO) than the individual ZnO and SnO 2 . 53 Yu et al 49 synthesized SnO 2 /ZnO nanocomposites via hydrothermal technique followed by calcination in air that exhibited considerably higher degradation efficiency for the photodegradation of methylene blue and quinolone antibiotics under mercury lamp irradiation than pure ZnO and SnO 2 analogues.…”

Section: Introductionmentioning

confidence: 99%

Facile one-pot synthesis of heterostructure SnO₂/ZnO photocatalyst for enhanced photocatalytic degradation of organic dye

2020

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Development, optimization and characterization of a two step sol–gel synthesis route for ZnO/SnO2 nanocomposite

Cited by 18 publications

References 34 publications

Targeted and Enhanced Antimicrobial Inhibition of Mesoporous ZnO–Ag₂O/Ag, ZnO–CuO, and ZnO–SnO₂ Composite Nanoparticles

Targeted and Enhanced Antimicrobial Inhibition of Mesoporous ZnO–Ag₂O/Ag, ZnO–CuO, and ZnO–SnO₂ Composite Nanoparticles

A one-step facile route synthesis of copper oxide/reduced graphene oxide nanocomposite for supercapacitor applications

Facile one-pot synthesis of heterostructure SnO₂/ZnO photocatalyst for enhanced photocatalytic degradation of organic dye

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Development, optimization and characterization of a two step sol–gel synthesis route for ZnO/SnO2 nanocomposite

Cited by 18 publications

References 34 publications

Targeted and Enhanced Antimicrobial Inhibition of Mesoporous ZnO–Ag2O/Ag, ZnO–CuO, and ZnO–SnO2 Composite Nanoparticles

Targeted and Enhanced Antimicrobial Inhibition of Mesoporous ZnO–Ag2O/Ag, ZnO–CuO, and ZnO–SnO2 Composite Nanoparticles

A one-step facile route synthesis of copper oxide/reduced graphene oxide nanocomposite for supercapacitor applications

Facile one-pot synthesis of heterostructure SnO2/ZnO photocatalyst for enhanced photocatalytic degradation of organic dye

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Product

Resources

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Targeted and Enhanced Antimicrobial Inhibition of Mesoporous ZnO–Ag₂O/Ag, ZnO–CuO, and ZnO–SnO₂ Composite Nanoparticles

Targeted and Enhanced Antimicrobial Inhibition of Mesoporous ZnO–Ag₂O/Ag, ZnO–CuO, and ZnO–SnO₂ Composite Nanoparticles

Facile one-pot synthesis of heterostructure SnO₂/ZnO photocatalyst for enhanced photocatalytic degradation of organic dye