Green synthesis with enhanced magnetization and life cycle assessment of Fe 3 O 4 nanoparticles

Marimón-Bolívar, Wilfredo; González, Edgar

doi:10.1016/j.enmm.2017.12.003

Cited by 42 publications

(30 citation statements)

References 52 publications

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“…2) and for maintaining extraction processes temperature (Eq. 3) 32 . The inventory considers the 2014 Romanian electricity mix, which features the following primary sources: 26.38% coal, 11.64% gas, 18.23% nuclear, 31.71% hydro, 9.76% wind power, 1.57% where, Qa is the energy required for heating (kWh), Qm is the energy for maintaining required temperature, (kWh), m is the mass of heated fluid, kg, Cp is the specific heat, (kW/kg K), hc is the global heat transfer coefficient, (W/m 2 K), A is the heated surface area, T is the temperature difference (degrees).…”

Section: Methodsmentioning

confidence: 99%

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Life cycle assessment of polyphenols extraction processes from waste biomass

Barjoveanu

Pătrăuțanu

Teodosiu

et al. 2020

Sci Rep

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Waste biomass from forestry and wood processing industries is a source to obtain fine chemicals, and its processing is a good example of circular economy, but it generates secondary environmental impacts. the main objective of this study was to analyse the environmental performances of laboratory scale processes for polyphenols extraction from spruce bark by means of life cycle assessment (LcA) and to simulate and evaluate the scale-up possibilities of the most favourable alternative. the assessed extraction processes were: a classic Soxhlet extraction using ethanol as solvent (SE), a high-temperature extraction in 1% NaOH solution (NaOH-SLE) and an ultrasound assisted extraction process (UAE). The functional unit was 1 mg of extracted polyphenols, measured as gallic acid equivalents (mg GAE)/g spruce bark. The life cycle inventory has included specific laboratory scale operations and extraction processes (infrastructure and transport processes were not considered). Life cycle impact assessment was performed with ReCipe 2016 at midpoint. For all extraction processes, the environmental profiles were dominated by the electricity use for heating and this has generated the highest impacts in most of the impact categories, followed by the production and use of ethanol as solvent. for the ultrasound assisted extraction, a scale-up scenario has proven that by raising capacity to a 30 L extraction vessel and by changing the heating source to a biomass-fired boiler, environmental impacts may be greatly diminished. The paper discusses also the uncertainty of lab-scale generated data for LcA. A sensitivity analysis has proven that for this case, the energy efficiency of different lab-scale equipment induce acceptable degrees of uncertainty for the LcA results. Biomass has been considered among the most important renewables, with the greatest economic growth potential in the future. Biomass represents the only natural resource that can be converted into both high value-added products and energy. Therefore, the demand for biomass is increasing worldwide. Consequently, there is a growing need to better understand how biomass can be valorised sustainably, what are the biomass flows in the economy and how the increased pressure on natural resources can be adjusted with environmental and economic sustainability in Europe and globally 1. Particularly, by-products from forestry and wood processing industry appear to be the most important and promising feedstock for recycling and for closing product life cycles, in accordance with the circular economy principles. Currently, the main route for wood bark valorization is the direct energy production by incineration at the woodmill, given its relatively high energy content (high heating value of 20.4-25.1 MJ/kg for resinous bark), but due to reasons like heterogeneity and high ash content this option is not so economically feasible 2. The other main valorisation routes refer to different bio-refinery processes developed for the production of chemicals. The high lignin and extractives co...

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Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Life cycle assessment of polyphenols extraction processes from waste biomass

Barjoveanu

Pătrăuțanu

Teodosiu

et al. 2020

Sci Rep

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“…Researchers have reported the use of microorganisms such as bacteria, fungi and algae (Kaul et al, 2012;Subramaniyam et al, 2015), ionic liquids and eutectic solvents (Sanchez et al, 2018), bio-and agrowaste (Nisticò et al, 2018;Yang et al, 2018;Olajire et al, 2017a,b), plant materials such as leaves, fruit (Kumar et al, 2014;Mohan Kumar et al, 2013) and seed (Radini et al, 2018;Venkateswarlu et al, 2014), T microwave heating (Alvarez-romero et al, 2018;Liang et al, 2017;Kombaiah et al, 2018a), and biodegradable polymers as greener routes for the synthesis of various nanoparticles. Other green-based methods for green synthesis of iron nanoparticles reported include amino acids (Marimón-Bolívar and González, 2018), vitamins, enzymes and waste (Wei et al, 2016a). Energy use, cost, environmental friendliness and availability are important considerations in adopting a greener technique.…”

Section: Introductionmentioning

confidence: 99%

Green synthesis of iron-based nanomaterials for environmental remediation: A review

Bolade

Williams

Benson

2020

Environmental Nanotechnology, Monitoring & Management

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The ever-increasing importance of green-based iron nanoparticles within the last decade and their environmental applications is a compelling reason to probe novel routes for their synthesis. Therefore, the principles of green chemistry, waste prevention, energy efficiency, safer solvents, and the benign precursor materials have become fundamental considerations in the synthesis process of these materials, birthing extensive study in this field. In this light, a comprehensive discussion of the successes of greener techniques and other biological nanotechnologies including the use of microorganisms (fungi, bacteria, actinomycetes, and viruses), algae, plant and their extracts for the synthesis of iron (Fe) nanoparticles (NPs) is presented. Although promising findings have been reported, substantial research gaps and the opportunity to capitalize on the emergence and rise of these eco-friendly sources have been identified. The application of synthesized nanoparticles for environmental remediation and their toxicological implications are also discussed.

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“…In this sense, endemic plants offer a sustainable and functional alternative to obtain nanomaterials [21][22][23]. On the other hand, it is well known that in recent years the use of plants as reducing agents (Myzus persicae, Ceratonia silique, Calotropis gigantean, Thymus kotschyanus leaf extract and pisumsativum peels) during the chemical synthesis of Fe3O4 nanoparticles has been widely reported [24][25][26][27][28][29][30][31]. However, the diversity of plants, properties and compounds present in each species is very wide and whose interaction in the synthesis process is reflected in the properties of the nanomaterials obtained.…”

Section: Introductionmentioning

confidence: 99%

Magnetic Nanoparticles of Fe3O4 Biosynthesized by Cnicus Benedictus Extract: Photocatalytic Study of Organic Dye Degradation and Antibacterial Behavior

Ruíz-Baltazar¹,

Reyes-López²,

Larrañaga-Ordáz³

et al. 2020

Preprint

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Currently, the use of sustainable chemistry as an ecological alternative for the generation of products or processes, free of polluting substance has assumed a preponderant role. The aim of this work is propose a bioinspired, facile, at low cost, non-toxic and environmentally friendly alternative to obtaining magnetic nanoparticles whit a majority phase of magnetite (Fe3O4). Is important to empathize that the synthesis was based on the chemical reduction through the Cnicus Benedictus extract, whose use as reducing agent has not been reported in the synthesis of iron oxides nanoparticles. In addition, the Cnicus Benedictus is abundant endemic plant in Mexico, with several medicinal properties and a large number of natural antioxidants. The obtained nanoparticles exhibited significant magnetic and antibacterial properties and an enhanced photocatalytic activity. The crystallite size of the Fe3O4 nanoparticles (Fe3O4 NP’s) was calculated by Williamson-Hall method. The photocatalytic properties of the Fe3O4 NP´s were studied by kinetics absorptions models in the Congo red (CR) degradation. Finally the antibacterial effect of the Fe3O4 NP´s were evaluated mediated the Kirby-Bauer method against E. coli and S. aureus bacteria. This route offers a green alternative to obtain Fe3O4 NP´s with remarkable magnetic, photocatalytic and antibacterial properties.

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Green synthesis with enhanced magnetization and life cycle assessment of Fe 3 O 4 nanoparticles

Cited by 42 publications

References 52 publications

Life cycle assessment of polyphenols extraction processes from waste biomass

Life cycle assessment of polyphenols extraction processes from waste biomass

Green synthesis of iron-based nanomaterials for environmental remediation: A review

Magnetic Nanoparticles of Fe<sub>3</sub>O<sub>4</sub> Biosynthesized by <em>Cnicus Benedictus</em> Extract: Photocatalytic Study of Organic Dye Degradation and Antibacterial Behavior

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