Grafted ZnO nanoparticles used for development in photocatalytic degradation performance of polyethylene

Kamalian, Parisa; Khorasani, Saied Nouri; Abdolmaleki, Amir

doi:10.1007/s00289-018-2564-y

Cited by 12 publications

(8 citation statements)

References 31 publications

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“…In previous research, the ZnO nanoparticle surfaces were modified by styrene. Results showed an increasing photocatalytic activity of the nanoparticles and, as a result, the degradation rate of polyethylene (PE) films containing them [25]. As mentioned, O 2 and H 2 O are two important species that play an important role in the activity of nanoparticles.…”

Section: Introductionmentioning

confidence: 84%

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Toward the development of polyethylene photocatalytic degradation

Kamalian

Khorasani

Abdolmaleki

et al. 2020

Journal of Polymer Engineering

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AbstractIn this research, the photocatalytic degradation performance in a commercial low-density polyethylene (LDPE) film was investigated in the presence of zinc oxide (ZnO) nanoparticles grafted with two amounts of polyacrylamide. Fourier-transform infrared spectroscopy (FTIR) besides thermogravimetric analysis (TGA) test results reinforced the successful grafting of polyacrylamide to the extent of 10 and 39 wt.% on the ZnO nanoparticles. The photocatalytic degradation of the films under ultraviolet (UV) radiation was evaluated by characterizing the mechanical properties, weight loss, and morphology. The UV absorption and emission for ZnO nanoparticles were increased after grafting with 10% polyacrylamide. The tensile strength of the nanocomposite films increased with the incorporation of nanoparticles. The presence of ZnO nanoparticles in LDPE films increased the rate of degradation after 200 h of irradiation. The polyacrylamide grafting improved the dispersion of ZnO particles in LDPE matrix, whereas the increase of grafting extent from 10 to 39 wt.% reduced the photocatalytic performance of ZnO nanoparticles.

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Section: Introductionmentioning

confidence: 84%

“…Exposure of ZnO by UV generates reactive electronhole pairs that can absorb oxygen molecules and water and produce hydroxyl radicals. These reactive species can initiate the degradation process of polyethylene [25].…”

Section: Introductionmentioning

confidence: 99%

Toward the development of polyethylene photocatalytic degradation

Kamalian

Khorasani

Abdolmaleki

et al. 2020

Journal of Polymer Engineering

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“…[98,99] Such modifications enhance wettability, diffusion, and chemical stability in addition to preventing ZnO nanoparticle aggregation in aqueous media. [100,101] Grafting hydrophilic polyacrylamide (PAM) onto ZnO nanoparticles improved UV absorption and emission by ZnO nanoparticles. [96] Grafting boosted not only the tensile strength of the nanocomposite films but also increased the degradation rate of LDPE films when exposed to UV irradiations.…”

Section: Zno Nanostructuresmentioning

confidence: 99%

Metal Oxides‐Based Nano/Microstructures for Photodegradation of Microplastics

Kumar¹

2023

Advanced Sustainable Systems

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The ubiquitous presence of microplastics in the environment has raised serious environmental and health concerns. These tiny plastic particles can enter the food chain, posing a significant threat to human health. Researchers worldwide have focused their efforts on developing strategies to mitigate microplastic pollution. This review focuses on the potential of nano/microstructured metal oxide semiconductors as effective photocatalysts for microplastic degradation. The review is divided into two sections: static metal oxides and dynamic micromachines based on metal oxides. The modifications made to nano/microstructured metal oxides such as TiO2, ZnO, bismuth oxyhalides (BiOX), NiO, Cu2O/CuO, perovskite‐like Bi2WO6, Fe3O4, etc., to enhance their degradation efficiency are thoroughly discussed and reviewed. Additionally, the photocatalytic pathways for the conversion of microplastics into C2 fuel and other value‐added products are also elaborated. The current developments in the realm of dynamic, self‐propelled, and controlled micromotors for the photodegradation of microplastics are also highlighted. The review concludes by proposing future perspectives and challenges to facilitate the remediation of microplastics in water and wastewater systems in a more effective, scalable, and environmentally friendly manner. Overall, the review emphasizes the potential of photocatalysis using nano/microstructured metal oxide semiconductors as an eco‐friendly and promising approach for microplastic degradation.

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“…These UV lamps, which provided the wavelength range of 280-350 nm, have been suggested and used by other researchers. [33,34] Irradiation was performed at 25 ± 1 C under room relative humidity. The specimens were also placed at a distance of 40 cm from UV lamps and irradiated at 48, 96, and 240 h regular intervals.…”

Section: 6 | Uv-degradation Study Of the Nanocompositesmentioning

confidence: 99%

High‐density polyethylene/zinc oxide nanocomposite with antibacterial and anti‐UV radiation properties to reduce evaporation from free surface waters

et al. 2022

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Climate change, through rising temperatures, higher evaporation rates, and changes in rainfall, can significantly affect the availability of water resources. Evaporation losses from open‐air reservoirs can exacerbate the problem of water scarcity, making it difficult to conserve water. Accordingly, this research aimed to develop nano‐reinforced floating covers to reduce evaporation from free water surfaces. For this purpose, high‐density polyethylene (HDPE), and zinc oxide (ZnO) nanoparticles, via melt‐blending procedures, were used to fabricate the nanocomposites. The morphological, mechanical, antibacterial, and photo‐degradation responses of HDPE/ZnO nanocomposites were assessed, and the physicochemical parameters of water samples were also examined to ensure that nanocomposites did not negatively affect water quality. The results indicated that adding 1 wt% nanofiller increased the tensile strength, while flexural strength values were modestly improved by increasing nanofillers up to 10 wt%. The irradiated nanocomposites generally displayed significant enhancement not only in the tensile strength but also in the flexural strength. Meanwhile, the addition of ZnO to HDPE had no adverse effects on water quality, though contributing to the antibacterial performance of the specimens over the neat polymer. To conclude, the fabricated nanocomposite with 1 wt% ZnO could be proposed as a promising candidate to reduce evaporation losses from free water surfaces, especially in arid and semi‐arid areas.

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Grafted ZnO nanoparticles used for development in photocatalytic degradation performance of polyethylene

Cited by 12 publications

References 31 publications

Toward the development of polyethylene photocatalytic degradation

Toward the development of polyethylene photocatalytic degradation

Metal Oxides‐Based Nano/Microstructures for Photodegradation of Microplastics

High‐density polyethylene/zinc oxide nanocomposite with antibacterial and anti‐UV radiation properties to reduce evaporation from free surface waters

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