The Territorialisation of the UN Agenda 2030 and Cross-Cutting Issues in Energy, Environment and Health: The Case of Portugal

2021 ◽  
pp. 393-411
Author(s):  
Eduardo Medeiros
Keyword(s):  
Agenda 2030 ◽  
Environment And Health ◽  
Energy Environment

scholarly journals Novel Slow Release Nanocomposite Fertilizers

2020 ◽  
Author(s):  
Muthuraman Yuvaraj ◽  
Kizhaeral Sevathapandian Subramanian
Keyword(s):  
Soil Microorganisms ◽  
Slow Release ◽  
Economic Advantage ◽  
Nutrient Loss ◽  
Environment And Health ◽  
Atom Manipulation ◽  
Agricultural Sciences ◽  
Energy Environment ◽  
The Subject

Nanotechnology deals with atom-by-atom manipulation and the strategies and products developed are quite precise. Despite the fact that the nanotechnology is noticeably exploited in the subject of energy, environment and health, the research is agricultural sciences had just scratched the surface. However, the potentials of nanotechnology in agricultural sciences had been reviewed. Among the applications, nanofertilizers technology is very revolutionary and known to exhibit economic advantage if the products advanced are economically feasible and socially sustainable. These nano fertilizers are pronounced to reduce nutrient loss due to leaching, emissions, and long-term incorporation by soil microorganisms.

scholarly journals Progress on the Fabrication and Application of Electrospun Nanofiber Composites

Membranes ◽  
2020 ◽  
Vol 10 (9) ◽  
pp. 204 ◽  
Author(s):  
Mariela Toriello ◽  
Morteza Afsari ◽  
Ho Kyong Shon ◽  
Leonard D. Tijing
Keyword(s):  
Composite Nanofibers ◽  
Materials Science ◽  
High Surface ◽  
High Surface Area ◽  
Electrospun Nanofibers ◽  
Electrospun Nanofiber ◽  
Environment And Health ◽  
Energy Environment ◽  
The Many ◽  
Remarkable Progress

Nanofibers are one of the most attractive materials in various applications due to their unique properties and promising characteristics for the next generation of materials in the fields of energy, environment, and health. Among the many fabrication methods, electrospinning is one of the most efficient technologies which has brought about remarkable progress in the fabrication of nanofibers with high surface area, high aspect ratio, and porosity features. However, neat nanofibers generally have low mechanical strength, thermal instability, and limited functionalities. Therefore, composite and modified structures of electrospun nanofibers have been developed to improve the advantages of nanofibers and overcome their drawbacks. The combination of electrospinning technology and high-quality nanomaterials via materials science advances as well as new modification techniques have led to the fabrication of composite and modified nanofibers with desired properties for different applications. In this review, we present the recent progress on the fabrication and applications of electrospun nanofiber composites to sketch a progress line for advancements in various categories. Firstly, the different methods for fabrication of composite and modified nanofibers have been investigated. Then, the current innovations of composite nanofibers in environmental, healthcare, and energy fields have been described, and the improvements in each field are explained in detail. The continued growth of composite and modified nanofiber technology reveals its versatile properties that offer alternatives for many of current industrial and domestic issues and applications.

Metal oxide rods and dots-based structures and devices: cost-effective fabrication and surface chemistry control

2009 ◽  
Vol 1209 ◽  
Author(s):  
Lionel Vayssieres
Keyword(s):  
Low Cost ◽  
Surface Acidity ◽  
Cost Effective ◽  
New Materials ◽  
Materials Development ◽  
Environment And Health ◽  
Energy Environment ◽  
Improved Stability ◽  
And Control ◽  
Quantum Confinements

AbstractThe necessity of materials development which is not limited to materials that can achieve their theoretical limits, but makes it possible to raise theoretical limits by changing the fundamental underlying physics and chemistry while keep the fabrication cost to a minimum is crucial. Materials nanotechnologies based on chemical fabrication approaches is one of the immediate answer to the enormous need for cost-effective new materials for energy, environment, and health. R&D exploiting chemical nanoscience and nanotechnology has the greatest potential to efficiently contribute to such challenging goals. Indeed, the creation of new materials with higher performance and improved stability achieved by atomic, molecular and nanostructural design and control using unique nanoscale phenomena such as quantum confinements is the key. A synthesis involving the aqueous condensation of metal ions from solutions of metal salts for the low-cost fabrication of engineered arrays consisting of oriented nanorods of metal oxides orientations onto various substrates as well as the ability to control the surface acidity of quantum dots from acidic to neutral to basic by size effect are presented.

scholarly journals A New Challenge for the Management and Disposal of Personal Protective Equipment Waste during the COVID-19 Pandemic

2021 ◽  
Vol 13 (13) ◽  
pp. 7034
Author(s):  
Zheng Wang ◽  
Christophe Guy ◽  
Kelvin Tsun Wai Ng ◽  
Chunjiang An
Keyword(s):  
Waste Management ◽  
Human Health ◽  
Personal Protective Equipment ◽  
Protective Equipment ◽  
Chemical Contaminants ◽  
The Public ◽  
Environment And Health ◽  
Secondary Pollution ◽  
Energy Environment ◽  
Collaborative Efforts

To prevent the transmission of the Coronavirus (SARS-CoV-2) in the public, the demand and consumption of personal protective equipment (PPE) increased drastically. Such wide use of PPE has brough a new challenge to waste management and disposal. It is difficult to sort PPE waste before further treatment, and such waste will often end up being processed by some traditional disposal methods. During the pandemic, incineration and landfill facilities are currently under significant pressure. In addition, a certain amount of PPE waste is discarded into the environment rather than going to landfills and incinerators. It not only directly affects the ecosystem, but also indirectly threatens human health through various routes of exposure. PPE waste is also the source and carrier of pathogens and chemical contaminants, causing a secondary pollution. Therefore, it is necessary to establish appropriate strategies to deal with the PPE problems related to energy, environment and health, requiring the collaborative efforts of researchers, practitioners, policymakers, and governments.

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