Risk Assessment and Health, Safety, and Environmental Management of Carbon Nanomaterials

Silva, Guilherme Lenz e; Viana, Camila de O.; Domingues, Danieli S.; Vieira, Fernanda Macedo Pereira

doi:10.5772/intechopen.85485

Cited by 8 publications

(11 citation statements)

References 32 publications

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Section: In Medical Fieldmentioning

confidence: 99%

Section: Environmental Risk Managementmentioning

confidence: 99%

“…Workflow illustrating approaches for monitoring nanomaterials in the air. Adapted under the Creative Common attribution CC BY 4.0 license [58]. Copyright 2019, The Authors, published by IntechOpen.…”

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confidence: 99%

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Ecotoxicity Analysis and Risk Assessment of Nanomaterials for the Environmental Remediation

Thakur

Kumar

2023

Macromolecular Symposia

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The evolution of a safe‐by‐design work premised on nanotechnology relies on the regulation of healthcare, safety, and environmental concerns throughout the manufacture, handling, preservation, assimilation, and disposal of nanomaterials. The practically infinite potential for nanoparticles to be functionalized, chemically interacted with, and added to new products necessitates a new management method for the safe and hazard‐free application of nanotechnology. Nanomaterials (NMs) like silver NMs and nanomaterial composites have a limited quantity of accurate toxicity and ecotoxicological evidence, which has a severe effect on the ecosystem. Due to the intricate and cross‐disciplinary architecture for several components and processes at the nanoscale, risk assessment in the field of nanotechnology necessitates an integrated interdisciplinary approach. In this review, the study begins by providing an insight into the general characteristics of nanoparticle synthesis and ecotoxicity assessments using a variety of green solutions. In addition, there are sections on safety protocols that encourage industrialists to use NMs more effectively in their operations.

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Section: In Medical Fieldmentioning

confidence: 99%

Section: Environmental Risk Managementmentioning

confidence: 99%

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Ecotoxicity Analysis and Risk Assessment of Nanomaterials for the Environmental Remediation

Thakur

Kumar

2023

Macromolecular Symposia

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“…In this situation NPs can generate genotoxic effects, oxidative stress with effects on DNA, blackheads that block the cleaning of pores resulting in acne. People sensitive to skin diseases such as dermatitis and eczema are most affected by exposure to NPs [39].…”

Section: Route Of Entry Of Pm and Nps Into The Human Bodymentioning

confidence: 99%

Atmospheric Pollution and the Impact on the Respiratory Tract and Lungs

POPA¹,

Tomoaia²,

Paltinean³

et al. 2021

AnnalsARSciBio

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The rapid development of the infrastructure of metropolises, cities, population and industry has led to severe air pollution, which has serious consequences for public health and the environment. Distortion of environmental quality includes a wide range of particulate matter (PM) and nanoparticles (NPs) that may contain in their structure and on their surface toxic substances, nasopharyngeal secretions, heavy metals, manure, pollen, bacteria, viruses, cigarette ash, SOx, NOx, O3. Studies in the literature on epidemiology and toxicology show the association between air pollution and its negative impact on the respiratory tract and lungs. This review highlights the pathways of PM and NPs (nasal, buccal and skin pores) and also the mechanisms by which their negative effects are strictly related to the complex properties and very small size of particles. Exposure to PM and NPs in both the short and long term can lead to clinical, chronic and even incurable diseases causing even death. This review addresses a topical issue that may influence both the understanding of the negative impact of air pollution and the improvement of protection strategies for dealing with an ecological disaster.

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“…activated carbon) , is often at the origin of a poor diffusion of reagents and intermediates through the catalyst bed, particularly in packed-bed reactors where pressure-drop phenomena can occur and where a prolonged product residence time within the catalytic bed may result in process selectivity loss. Moreover, the essentially powdery texture of nanocarbons raises health and environmental issues, other than posing serious drawbacks in terms of materials handling and transportation. Hierarchically structured C-based composites allow for combining nanosized carbons in macroscopically shaped host matrices .…”

Section: Introductionmentioning

confidence: 99%

Porous Silicon Carbide (SiC): A Chance for Improving Catalysts or Just Another Active-Phase Carrier?

et al. 2021

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There is an obvious gap between efforts dedicated to the control of chemicophysical and morphological properties of catalyst active phases and the attention paid to the search of new materials to be employed as functional carriers in the upgrading of heterogeneous catalysts. Economic constraints and common habits in preparing heterogeneous catalysts have narrowed the selection of active-phase carriers to a handful of materials: oxide-based ceramics (e.g. Al2O3, SiO2, TiO2, and aluminosilicates–zeolites) and carbon. However, these carriers occasionally face chemicophysical constraints that limit their application in catalysis. For instance, oxides are easily corroded by acids or bases, and carbon is not resistant to oxidation. Therefore, these carriers cannot be recycled. Moreover, the poor thermal conductivity of metal oxide carriers often translates into permanent alterations of the catalyst active sites (i.e. metal active-phase sintering) that compromise the catalyst performance and its lifetime on run. Therefore, the development of new carriers for the design and synthesis of advanced functional catalytic materials and processes is an urgent priority for the heterogeneous catalysis of the future. Silicon carbide (SiC) is a non-oxide semiconductor with unique chemicophysical properties that make it highly attractive in several branches of catalysis. Accordingly, the past decade has witnessed a large increase of reports dedicated to the design of SiC-based catalysts, also in light of a steadily growing portfolio of porous SiC materials covering a wide range of well-controlled pore structure and surface properties. This review article provides a comprehensive overview on the synthesis and use of macro/mesoporous SiC materials in catalysis, stressing their unique features for the design of efficient, cost-effective, and easy to scale-up heterogeneous catalysts, outlining their success where other and more classical oxide-based supports failed. All applications of SiC in catalysis will be reviewed from the perspective of a given chemical reaction, highlighting all improvements rising from the use of SiC in terms of activity, selectivity, and process sustainability. We feel that the experienced viewpoint of SiC-based catalyst producers and end users (these authors) and their critical presentation of a comprehensive overview on the applications of SiC in catalysis will help the readership to create its own opinion on the central role of SiC for the future of heterogeneous catalysis.

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Risk Assessment and Health, Safety, and Environmental Management of Carbon Nanomaterials

Cited by 8 publications

References 32 publications

Ecotoxicity Analysis and Risk Assessment of Nanomaterials for the Environmental Remediation

Ecotoxicity Analysis and Risk Assessment of Nanomaterials for the Environmental Remediation

Atmospheric Pollution and the Impact on the Respiratory Tract and Lungs

Porous Silicon Carbide (SiC): A Chance for Improving Catalysts or Just Another Active-Phase Carrier?

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