Photocatalytic properties of ZnO/SnO2 nanocomposite films: role of morphology

Zarei, Saeed; Hasheminiasari, M.; Masoudpanah, S.M.; Javadpour, Jafar

doi:10.1016/j.jmrt.2022.01.126

Cited by 24 publications

(7 citation statements)

References 35 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The produced ZnO:SnO 2 nanocomposites' polycrystalline characteristic is determined by the XRD pattern. These results were well in agreement with a previously published study by Zarei et al which confirmed the purity and high crystallinity of the ZnO-SnO2 thin films [25].…”

Section: Discussionsupporting

confidence: 94%

Synthesis and Characterization of the Zinc-Oxide: Tin-Oxide Nanoparticle Composite and Assessment of Its Antibacterial Activity: An In Vitro Study

Kumar,

Jain

2024

Cureus

View full text Add to dashboard Cite

Introduction Nanoparticles (NPs) have been widely used for biomedical applications. Various methods of synthesis of NPs have been performed and the sol-gel technique is one of the most common and feasible methods. ZnO and SnO 2 NPs are widely used due to their interesting properties and versatile medical applications. The present study aimed to synthesize a composite of ZnO- SnO 2 NPs and evaluate its structural, morphological, and antibacterial properties. Materials and methods ZnO-SnO 2 NPs were prepared via the sol-gel technique. The morphological study was performed by scanning electron microscopy (SEM) imaging, the structural study was performed by X-ray diffraction (XRD) analysis, and chemical studies were performed by Fourier transform infrared spectroscopy (FT-IR) and energy-dispersive X-ray spectroscopy (EDAX). Antibacterial properties of the NPs were assessed by the agar diffusion test and the area of bacterial growth that was inhibited was measured under high and low concentrations of the NPs. Results The SEM analysis confirmed the irregular shape and elemental composition of the synthesized NPs. The purity of the NPs was confirmed by the EDAX spectrum, which indicates the weight percentages of the elements in the NPs as follows: Sn-53.8%, Zn-12.5%, O-29.1%, and C-4.7%. The chemical bonds between the NPs were confirmed by Fourier transform infrared spectroscopy. XRD analysis confirmed the high degree of crystallinity of the NPs and orthorhombic structure of SnO 2 and the hexagonal structure of ZnO. The zone of inhibition against S. aureus , S. mutans, and E. coli for low concentrations of the NPs was 24 mm, 26 mm, and 30 mm and for high concentrations of the NPs it was 26 mm, 28 mm, and 31mm and these values were similar to the control antibiotics. Conclusion ZnO- SnO 2 NPs were successfully prepared by the sol-gel method. The presence of NPs was confirmed and successfully characterized. The prepared NPs had a good antimicrobial effect against the tested pathogens.

show abstract

Section: Discussionsupporting

confidence: 94%

Synthesis and Characterization of the Zinc-Oxide: Tin-Oxide Nanoparticle Composite and Assessment of Its Antibacterial Activity: An In Vitro Study

Kumar,

Jain

2024

Cureus

View full text Add to dashboard Cite

show abstract

“…Many methods have been developed for the preparation of nanocrystalline ceramic ZnO-SnO 2 photocatalysts: polymer-salt method [4], sol-gel technique [33,35], hydrothermal method [36], spray pyrolysis [37], etc. Polymer-salt synthesis is a facile and an effective method widely used in the preparation of different ZnO-based nanomaterials and thin ceramic coatings [4,7,16,[25][26][27][28].…”

Section: Introductionmentioning

confidence: 99%

Ceramic ZnO-SnO2-Fe2O3 Powders and Coatings -Effective Photogenerators of Reactive Oxygen Species

et al. 2023

View full text Add to dashboard Cite

Ceramic ZnO-SnO2-Fe2O3 powders and transparent coatings on glasses prepared using the non-isothermal polymer-salt method demonstrate a strong ability to generate chemically active oxygen species under UV and visible irradiation. Crystal structures and morphologies of these materials were studied using the XRD and the SEM analysis. It was found that there are significant differences in the crystal structure of ceramic powders and thin coatings. The powders consist of randomly oriented oxide nanocrystals of size ~47 nm. The strong orientation of the ZnO nanocrystals due to their interaction with the glass substrate is observed in the coating structure. Experimental data show that thin ceramic coatings are transparent (~90%) in the visible spectral range and the band gap of the ceramic material is 3.44 eV. The band gap value of this multi-component ceramic material is described sufficiently using Verlag’s law. Ceramic powders and coatings demonstrate the intensive photogeneration of reactive oxygen species, both in liquid and air. High photocatalytic activity of ZnO-SnO2-Fe2O3 ceramic coatings and powders was observed upon the oxidation of the diazo dye, Chicago Sky Blue. In the presence of transparent photocatalytic coating, the value of the constant rate of the dye photodecomposition was high (k = 0.056 min−1). It was found that, in spite of their short life time, photogenerated reactive oxygen species demonstrate the ability to decompose dye molecules located up to a distance of 0.5 mm from the surface of ceramic coating. Obtained experimental results suggest that the prepared ceramic materials are promising for different practical applications of the photocatalytic materials.

show abstract

“…The studies on different metal oxide/PMMA nanocomposites, such as ZnO/PMMA, CdS/PMMA, Ag/ZnO/PMMA, and TiO 2 /PMMA, have revealed that they are very effective in the degradation of different organic pollutants. ,− Although ZnO NPs have been considered the gold standard for photocatalytic applications, there are several reports that heterojunction zinc tin oxide (ZnO/SnO 2 ) NPs stand out by even more successful photocatalytic degradation of some organic pollutants. ,− Coupling ZnO with SnO 2 is found to increase the charge separation of the photogenerated electron/hole pairs and to reduce the recombination rate leading to superior photocatalytic properties over single-phase ZnO and SnO 2 . , However, there are no reports about the investigations of the physicochemical properties of ZnO/SnO 2 polymer nanocomposites, which would be especially attractive for photocatalytic applications due to the exceptional photocatalytic activity of ZnO/SnO 2 NPs.…”

Section: Introductionmentioning

confidence: 99%

“…14,24−34 Coupling ZnO with SnO 2 is found to increase the charge separation of the photogenerated electron/hole pairs and to reduce the recombination rate leading to superior photocatalytic properties over single-phase ZnO and SnO 2 . 28,35 However, there are no reports about the investigations of the physicochemical properties of ZnO/SnO 2 polymer nanocomposites, which would be especially attractive for photocatalytic applications due to the exceptional photocatalytic activity of ZnO/SnO 2 NPs.…”

Section: Introductionmentioning

confidence: 99%

Eco-Friendly Photoactive Foils Based on ZnO/SnO₂-PMMA Nanocomposites with High Reuse Potential

Ćelić

Banić

Jagodić

et al. 2023

ACS Appl. Polym. Mater.

View full text Add to dashboard Cite

In the last decades, water pollution from different industries has been one of the largest environmental issues. Many efforts have been made to develop technologies to remove toxic pollutants from the contaminated waters, which are direct threats to the aquatic environment and human health. Among different technologies, heterogeneous catalysis has shown to be very effective for water purification. The main issue regarding this method is the water recovery after the treatment, which is a very expensive and laborious procedure but can be addressed by the immobilization of photocatalytic particles on the support material. Here, we present efficient and green technology for water purification based on ZnO/SnO 2 -poly(methyl methacrylate) (PMMA) nanocomposite foils utilizing superior photocatalytic properties of coupled ZnO and SnO 2 photocatalysts. We investigated the influence of the ZnO/SnO 2 nanoparticle concentration on the removal efficiency of methylene blue dye and found exceptional removal efficiency for even very low ZnO/SnO 2 nanoparticle loadings. The investigated foils were found to be highly reusable, with no change in performance after five successive usages. The composition, optical properties, surface morphology, and surface roughness of the foils were characterized by X-ray diffraction, UV−vis spectroscopy, scanning electron microscopy, and atomic force microscopy. The thermal measurements performed with differential scanning calorimetry suggested the reinforcement effect of ZnO/SnO 2 nanoparticles on the PMMA matrix, which is essential for practical applications of the foils.

show abstract

Photocatalytic properties of ZnO/SnO2 nanocomposite films: role of morphology

Cited by 24 publications

References 35 publications

Synthesis and Characterization of the Zinc-Oxide: Tin-Oxide Nanoparticle Composite and Assessment of Its Antibacterial Activity: An In Vitro Study

Synthesis and Characterization of the Zinc-Oxide: Tin-Oxide Nanoparticle Composite and Assessment of Its Antibacterial Activity: An In Vitro Study

Ceramic ZnO-SnO2-Fe2O3 Powders and Coatings -Effective Photogenerators of Reactive Oxygen Species

Eco-Friendly Photoactive Foils Based on ZnO/SnO₂-PMMA Nanocomposites with High Reuse Potential

Contact Info

Product

Resources

About

Photocatalytic properties of ZnO/SnO2 nanocomposite films: role of morphology

Cited by 24 publications

References 35 publications

Synthesis and Characterization of the Zinc-Oxide: Tin-Oxide Nanoparticle Composite and Assessment of Its Antibacterial Activity: An In Vitro Study

Synthesis and Characterization of the Zinc-Oxide: Tin-Oxide Nanoparticle Composite and Assessment of Its Antibacterial Activity: An In Vitro Study

Ceramic ZnO-SnO2-Fe2O3 Powders and Coatings -Effective Photogenerators of Reactive Oxygen Species

Eco-Friendly Photoactive Foils Based on ZnO/SnO2-PMMA Nanocomposites with High Reuse Potential

Contact Info

Product

Resources

About

Eco-Friendly Photoactive Foils Based on ZnO/SnO₂-PMMA Nanocomposites with High Reuse Potential