Economía Circular

Economía Circular

Laser ablation of CFRP surfaces for improving the strength of bonded scarf composite joints
15/09/2022 - Repairing damaged composite parts using scarf technique requires a careful selection of treatment methods for composite surface. Laser treatment is one of the emerging techniques to treat the...
Thermodynamic analysis of subcritical/transcritical ORCs with metal–organic heat carriers for efficient power generation from low-grade thermal energy
15/09/2022 - Recovery of low-grade energy for power generation by organic Rankine cycle (ORC) can effectively alleviate energy crisis and reduce CO2 emission, but the low heat source temperature severely...
Energy yield optimization of co-hydrothermal carbonization of sewage sludge and pinewood sawdust coupled with anaerobic digestion of the wastewater byproduct
15/10/2022 - High energy recovery efficiency is expected to be obtained from biomass waste by coupling hydrothermal carbonization (HTC) with anaerobic digestion (AD). This study focused on optimizing the total...
A novel bioderived AB2?type monomer from castor oil derivative for the preparation of fully biobased hyperbranched polyesters
23/06/2022 - MWCNTs have been individually dispersed in PEEK matrix at a concentration of 10 wt.%, resulting in an almost doubled modulus of PEEK. This well dispersed PEEK/MWCNT nanocomposite shows highly...
Assembled Reduced Graphene Oxide/Tungsten Diselenide/Pd Heterojunction with Matching Energy Bands for Quick Banana Ripeness Detection
24/06/2022 - The monitoring of ethylene is of great importance to fruit and vegetable quality, yet routine techniques rely on manual and complex operation. Herein, a chemiresistive ethylene sensor based on...
4D Metamaterials with Zero Poisson’s Ratio, Shape Recovery, and Energy Absorption Features
22/06/2022 - This paper introduces novel three?dimensional (3D) zero Poisson’s ratio (ZPR) metamaterials for reversible energy absorption applications fabricated by 4D printing technology. The designs are...
Adsorption of Methylene Blue on Azo Dye Wastewater by Molybdenum Disulfide Nanomaterials
22/06/2022 - In this study, flower-like MoS2 nanomaterials were synthesized by hydrothermal method with excess thiourea. The adsorption performance of MoS2 adsorbent for methylene blue (MB) in azo dye wastewater...
Enhanced room temperature NO2 sensing performance based on N-doped carbon nanosheets@ZnO nanoplates by morphology transition and white light illumination
- Highly-sensitive gas sensors operating at room temperature (RT) have been pursued by researchers due to their high security, energy saving and long-term stability. Herein, N-doped carbon...
Novel Bi4O5Br2/MnxZn1-xFe2O4 magnetic composite with an enhanced photodegradation activity and excellent recyclability
- Bi4O5Br2/MnxZn1-xFe2O4 nanocomposites with impressive photocatalytic and recyclability properties were synthesised using a microemulsion method. In addition to the photocatalytic effect, the...
Waste heat recovery research – a systematic bibliometric analysis (1991 to 2020)
18/06/2022 - Human usage of non-renewable energy resources has caused many environmental issues, which include air pollution, global warming, and climate irregularities. To counter these issues, researchers...
A theoretical study of molten carbonate fuel cell combined with a solar power plant and Cu–Cl thermochemical cycle based on techno-economic analysis
- A novel power and hydrogen coproduction system is designed and analyzed from energetic and economic point of view. Power is simultaneously produced from parabolic trough collector power plant and...
Promising Novel Barium Carbonate One-Dimensional Nanostructures and Their Gas Sensing Application: Preparation and Characterization
17/06/2022 - Recently, barium carbonate-based nanomaterials have been used for sensor and catalysis applications. The sensing performance can be improved with a suitable one-dimensional nanostructure. In this...
Assessment of Processes to Increase the Useful Life and the Reuse of Reverse Osmosis Elements in Cape Verde and Macaronesia
- Reverse osmosis membranes could be reused in the same or another desalination plant by replacing the membranes in the dirtiest first positions with those in the least damaged last positions, also...
A systematic approach towards optimization of brackish groundwater treatment using nanofiltration (NF) and reverse osmosis (RO) hybrid membrane filtration system
- This research compares the performance efficiencies of Nanofiltration (NF), Reverse osmosis (RO), and Nanofiltration-Reverse Osmosis (NF-RO) hybrid membrane filtration systems, for treatment of...
Development and optimization of highly efficient heat recoveries for low carbon residential buildings
01/08/2022 - To achieve energy efficiency and lower carbon emissions, building envelopes have become tighter and more insulated. These buildings must have mechanical ventilation with high efficient heat...
Cationic porphyrin–xylan conjugate hydrogels for photodynamic antimicrobial chemotherapy
09/06/2022 - AbstractThe temporomandibular joint (TMJ) is commonly affected during fundamental oral activities, reducing the quality of life. Herein, we synthesized a heparin?conjugated poloxamer hydrogel (HEP)...
Bioleaching/enzyme-based recycling of aluminium and polyethylene from beverage cartons packaging waste
01/10/2022 - Multilayer materials are frequently used in food and beverage packaging, delivering favourable properties for storage and protection. However, their complex construction, consisting of several...
An antifatigue and self-healable ionic polyurethane/ionic liquid composite as the channel layer for a low energy cost synaptic transistor
- The developing trends of the traditional transistor include being synaptic and flexible, which could down low the energy cost and realize the daily application of flexible electronics,...
An MHD Flow of Non-Newtonian Fluid Due to a Porous Stretching/Shrinking Sheet with Mass Transfer
08/06/2022 - An examination is carried out for three-dimensional incompressible viscoelastic fluid flow over a porous stretching/shrinking sheet with hybrid nanoparticles copper-alumina (Cu−Al2O3)...
Circular economy strategy and waste management: a bibliometric analysis in its contribution to sustainable development, toward a post-COVID-19 era
07/06/2022 - A descriptive analysis of 416 documents was performed using bibliometric techniques, in order to gather existing knowledge in circular economy focusing on waste management (2007–2020). The...
Global tellurium supply potential from electrolytic copper refining
01/09/2022 - The transition towards renewable energy requires increasing quantities of nonfuel mineral commodities, including tellurium used in certain photovoltaics. While demand for tellurium may increase...