Life cycle assessment of facile microwave-assisted zinc oxide (ZnO) nanostructures

Papadaki, Dimitra; Foteinis, Spyros; Mhlongo, G.H.; Nkosi, Steven S.; Motaung, David E.; Ray, Suprakas Sinha; Tsoutsos, Theocharis; Kiriakidis, G.

doi:10.1016/j.scitotenv.2017.02.019

Cited by 31 publications

(28 citation statements)

References 25 publications

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“…Based on the current knowledge, more research works are expected on the engineering of degradable and less toxic NPs to minimize their environment related issues. For example, due to the fact that organic solvents can alter the shape, size, and other physicochemical properties of NPs that ultimately modulate biological, chemical, and environmental properties (Ali et al, 2017), the toxicity and bioavailability of MeO-NPs can be tailored by modifying the synthesis parameters/conditions (Ali et al, 2017;Caramazana-Gonz alez et al, 2017;Papadaki et al, 2017;Punnoose et al, 2014) or by coating with biologically inert compounds (Ortelli et al, 2016;Sotiriou et al, 2014). Punnoose et al (2014) synthesized two ZnO-NP samples (size, 9.26 nm each) from the same precursor, zinc acetate, and modified their surface chemical structures using different reaction solvents, diethylene glycol and denatured ethanol, which led to major differences in the z-potential, R D , photocatalytic rate constant, and more importantly, their cytotoxic effects on Hut-78 cancer cells (IC 50 , 0.37 and 0.56 mM, using diethylene glycol and denatured ethanol reaction solvents, respectively).…”

Section: Future Research Directionsmentioning

confidence: 99%

“…Besides, coated ZnO-NPs and TiO 2 -NPs (Ortelli et al, 2016) exhibited lower toxic-effects due to minimum dissolution and no direct contact with cellular bodies in the case of ZnO-NPs and avoid the ROS generation for the case of TiO 2 -NPs. In the report of Papadaki et al (2017), a ZnO-NPs synthesis route based on electricity and renewable energy can improve the environmental sustainability of the nanoparticles by 25%. Besides, a precursor selection in preparation of NPs also plays a great role in determining cradle-to-gate environmental impacts.…”

Section: Future Research Directionsmentioning

confidence: 99%

See 1 more Smart Citation

Transformation and bioavailability of metal oxide nanoparticles in aquatic and terrestrial environments. A review

Amde

Liu

Tan

et al. 2017

Environmental Pollution

207

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Section: Future Research Directionsmentioning

confidence: 99%

Section: Future Research Directionsmentioning

confidence: 99%

Transformation and bioavailability of metal oxide nanoparticles in aquatic and terrestrial environments. A review

Amde

Liu

Tan

et al. 2017

Environmental Pollution

207

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“…Figure 2(a) shows the optical properties of ZnO nanoparticles synthesized at 2 minutes of irradiation time. A sharp peak was formed at 355 nm, representing the hexagonal phase of ZnO nanoparticle [27].…”

Section: Resultsmentioning

confidence: 99%

Microwave-assisted Synthesis of ZnO Nanoparticles Stabilized with Gum Arabic: Effect of Microwave Irradiation Time on ZnO Nanoparticles Size and Morphology

Pauzi

Zain

Yusof

2018

Bull. Chem. React. Eng. Catal.

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The conventional heating methods of nanoparticle synthesis regularly depend on the energy inputs from outer heat sources that resulted high energy intake and low reaction competences. In this paper ZnO nanoparticles stabilized with gum arabic are synthesized using precipitating method assisted by simple and cost effective microwave heating technique. The objective of this work is to investigate the effect of microwave irradiation time towards ZnO nanoparticles morphology and size. The effect of microwave irradiation time has been investigated at 2, 4, 6, and 10 minutes. Dynamic Light Scattering (DLS) was employed to measure the size of ZnO nanoparticles. Ultraviolet–Visible spectroscopy (UV-vis), Fourier-Transform Infrared Spectroscopy (FTIR) and X-Ray Diffraction (XRD) were used for the characterization of the ZnO nanoparticles. UV-vis absorption spectrum was found in the range of 350 nm indicating the absorption peak of ZnO nanoparticles. FTIR spectra showed peaks range from 424 to 475 cm–1 which indicating standard of Zn–O stretching. The presence of (100), (002), and (101) planes were apparent in the XRD result, indicating the crystalline phase of ZnO nanoparticles. The increase in the microwave irradiation time affected the processes of nucleation and crystal growth promoted larger ZnO nanoparticles size. Microwave irradiation time at 2 minutes was selected as the best microwave irradiation time for smallest ZnO nanoparticles averaging about 168 nm sizes based on DLS analysis. Copyright © 2019 BCREC Group. All rights reservedReceived: 1st October 2018; Revised: 22nd November 2018; Accepted: 12nd December 2018; Available online: 25th January 2019; Published regularly: April 2019How to Cite: Pauzi, N., Zain, N.M., Yusof, N.A.A. (2019). Microwave-assisted Synthesis of ZnO Nanoparticles Stabilized with Gum Arabic: Effect of Microwave Irradiation Time on ZnO Nanoparticles Size and Morphology. Bulletin of Chemical Reaction Engineering & Catalysis, 14 (1): 182-188 (doi:10.9767/bcrec.14.1.3320.182-188)Permalink/DOI: https://doi.org/10.9767/bcrec.14.1.3320.182-188

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“…In our case, it is important to assess whether the combination of films with ZnO NP does not generate an impact that surpasses that avoided by the waste savings. The environmental burden of ZnO NP production has been previously evaluated in the field of material engineering [20] and chemical functionality [21], but never when it comes to its inclusion in films for the manufacturing of active films. In [21], the authors claim that one of the main environmental weaknesses of ZnO NP production is electricity consumption.…”

Section: Introductionmentioning

confidence: 99%

“…The environmental burden of ZnO NP production has been previously evaluated in the field of material engineering [20] and chemical functionality [21], but never when it comes to its inclusion in films for the manufacturing of active films. In [21], the authors claim that one of the main environmental weaknesses of ZnO NP production is electricity consumption. Nevertheless, the small amounts of nanoparticles needed to produce novel packaging technologies may lead to a negligible effect of this issue.…”

Section: Introductionmentioning

confidence: 99%

Sustainability Analysis of Active Packaging for the Fresh Cut Vegetable Industry by Means of Attributional & Consequential Life Cycle Assessment

et al. 2020

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In order to enlarge the shelf life and avoid the waste of fresh-cut (FC) products, novel packaging techniques with antimicrobial properties have been proposed. In this work, we analyzed the potential environmental benefits of using films reinforced with bactericidal ZnO nanoparticles (NP) for FC produce packaging, when compared to the traditional polypropylene (PP) films. A biodegradable, polylactic acid (PLA) package and a non-biodegradable, polypropylene package, both coated with ZnO NP, were considered as novel technologies. The eco-profile of the considered alternatives was assessed via two life cycle assessments (LCAs). Firstly, an attributional LCA was performed in order to compare the materials in terms of their production and end of life (EOL) processes, allowing us to extend the conclusions to different food products. Secondly, a consequential LCA was performed taking into account the whole life cycle of the fresh vegetable, with special attention to the environmental implications of the produce losses among the chain. The uncertainties of the models were assessed via Monte Carlo approach. In both cases, the scenarios concerning the PLA and PP active packages with ZnO NP showed a better profile than the traditional techniques, specifically when considering the full supply chain of the FC vegetables in the consequential LCA. As agricultural production is the main contributor to the environmental impact of the cycle, the avoidance of wastes by extending the shelf life through the novel packages leads to the impact reduction of FC products.

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Life cycle assessment of facile microwave-assisted zinc oxide (ZnO) nanostructures

Cited by 31 publications

References 25 publications

Transformation and bioavailability of metal oxide nanoparticles in aquatic and terrestrial environments. A review

Transformation and bioavailability of metal oxide nanoparticles in aquatic and terrestrial environments. A review

Microwave-assisted Synthesis of ZnO Nanoparticles Stabilized with Gum Arabic: Effect of Microwave Irradiation Time on ZnO Nanoparticles Size and Morphology

Sustainability Analysis of Active Packaging for the Fresh Cut Vegetable Industry by Means of Attributional & Consequential Life Cycle Assessment

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