Economía Circular

Economía Circular

Fluoropolymer-based hybrid superhydrophobic nanocomposite coating with antifouling and self-cleaning properties for efficient oil/water separation
- The production of industrial and domestic effluents possessing oily contaminated water has become a global concern as a result of environmental contamination and pollution. Newly synthesized...
Carbon fiber damage evolution under flame attack and the role of impurities
29/06/2022 - Carbon fibers (CFs) are prone to extensive oxidation under fire attack, for instance, in an aircraft fire scenario. This work addresses the damage mechanisms observed on polyacrylonitrile (PAN)?based...
Enhanced photocatalytic activity in water splitting for hydrogen generation by using TiO2 coated carbon fiber with high reusability
- In this study, TiO2 coated carbon fiber (TiO2@CF) was synthesized and used for the improvement of hydrogen (H2) evolution. Obtained results from scanning electron microscopy (SEM), X-ray...
Development of Lightweight Steel Framed Construction Systems for Nearly-Zero Energy Buildings
30/06/2022 - Light steel frame (LSF) building systems offer high structural resilience, lower costs due to fast prefabrication, and high ability to recycle and reuse. The main goal of this paper was to provide...
Application of Mixing Rules for Adjusting the Flowability of Virgin and Post-Consumer Polypropylene as an Approach for Design from Recycling
30/06/2022 - To enable the use of recyclates in thermoformed polypropylene products with acceptable optical appearance and good mechanical stability, a multilayer structure of virgin and recycled material can be...
Renewable Fuels from Integrated Power- and Biomass-to-X Processes: A Superstructure Optimization Study
30/06/2022 - This work presents a superstructure optimization study for the production of renewable fuels with a focus on jet fuel. Power-to-X via the methanol (MTJ) and Fischer–Tropsch (FT) route...
Circular Composites by Design: Testing a Design Method in Industry
30/06/2022 - The design of composite products for a circular economy is challenging. Materials such as glass-fibre-reinforced plastics have long product lifetimes but are hard to recycle. For the effective reuse...
Understanding the Human Dimensions of Recycling and Source Separation Practices at the Household Level: An Evidence in Perak, Malaysia
30/06/2022 - Recycling and source separation (R&SS) are believed to have been the first attempt to minimise waste. This research adopted mixed methods that followed sequential quantitative then...
The Influence of Powder Reuse on the Properties of Laser Powder Bed Fused Stainless Steel 316L: A Review
29/06/2022 - There is a clear economic benefit for the recycling of metallic powder during additive manufacturing (AM). Laser powder bed fusion (L?PBF) is one such AM process and research has found that the...
Concerted catalysis of Ni-Pd/GO for selective nitriles hydrogenation to secondary amines
- A novel explosion-assistant strategy was developed to fabricate graphene oxide supported nickel and palladium three-component catalyst Pd/Ni/NiO/GO for hydrogenation of nitriles to secondary...
Selectively capacitive recovery of rare earth elements from aqueous solution onto Lewis base sites of pyrrolic-N doped activated carbon electrodes
01/09/2022 - The growing demand for rare earth elements (REEs) necessitates cheap and environmentally friendly technologies for REEs recovery. Herein, we fabricated a pyrrolic-N doped activated carbon...
Direct Synthesis of Adipic Esters and Adiponitrile via Photoassisted Cobalt?Catalyzed Alkene Hydrodimerization
29/06/2022 - The direct hydrodimerization of acrylates and acrylonitrile offers a general streamlined access to industrially important intermediates to nylon 6,6. However, a practical catalytic method for this...
One-step fabrication of pH-responsive microcapsules with aqueous cargo using aqueous two-phase system
- A new approach was developed to generate the pH-responsive poly(polyethylene glycol-co-acrylic acid) poly (PEG-co-AA) microcapsules by in-situ photopolymerization of the...
The spontaneous imbibition mechanisms for enhanced oil recovery by gel breaking fluid of clean fracturing fluid
- The quick flowback treatment after conventional fracturing construction can waste a lot of energy from fracturing fluid. Meanwhile, spontaneous imbibition has great application potential for...
Laser sintering of self-healable and recyclable thermoset networks
- Selective Laser Sintering (SLS) is a well-known additive manufacturing technique that builds 3D complex structures by sintering powder particles together upon laser irradiation. In the polymer...
Visible active clay based Sm2(WO4)3 nanocomposite for drug removal in pharmaceutical effluents
- Antibacterial drug ofloxacin of fluoroquinolone family is identified in domestic sewage treatment plant, pharmaceutical and hospital effluents. Fluoroquinolones are toxic to the living organism...
Sol-gel auto-combustion synthesis of Cu1-xMgxFe2O4 nanoparticles and their heterogenous Fenton-like activity towards tartrazine
- In this study, magnesium/copper ferrite nanoparticles Cu1-xMgxFe2O4 with composition (x = 0.0, 0.2, 0.4, 0.6, 0.8 and 1.0) were synthesized by sol–gel auto-combustion method. Samples were...
Effects of Sodium Carbonate and Calcium Oxide on Roasting Denitrification of Recycled Aluminum Dross with High Nitrogen Content
29/06/2022 - Aluminum dross is solid waste produced by the aluminum industry. It has certain toxicity and needs to be treated innocuously. The effect of sodium carbonate and calcium oxide on the denitrification...
Grafting of Poly(Ethylene Imine) to Silica Nanoparticles for Odor Removal from Recycled Materials
29/06/2022 - One of the major obstacles to the reuse of recycled plastic materials is the emanation of after-process odors from recycled polymers and composites. Typically, recycled polymers are blended with an...
DFT Study on the CO2 Reduction to C2 Chemicals Catalyzed by Fe and Co Clusters Supported on N-Doped Carbon
29/06/2022 - The catalytic conversion of CO2 to C2 products through the CO2 reduction reaction (CO2RR) offers the possibility of preparing carbon-based fuels and valuable chemicals in a sustainable way. Herein,...