Economía Circular

Economía Circular

A rapid magnetic bead-based immunoassay for sensitive determination of diclofenac
- Increasing contamination of environmental waters with pharmaceuticals represents an emerging threat for the drinking water quality and safety. In this regard, fast and reliable analytical methods...
One-pot hydrothermal synthesis of type-II MnIn2S4/In(OH)3 heterojunctures with efficient MB degradation and Cr(VI) reduction under visible light irradiation
- The speedy recombination of photoelectrons and holes is a frustrating issue in photocatalysis. Delicate design and simple synthesis of heteroarchitectures by tightly integrating two or more...
Well-dispersed ultrafine Pt nanoparticles anchored on oxygen-rich surface of V2CTx (MXene) for boosting hydrogen evolution reaction
- Developing homogeneous dispersion and efficient loading Pt-based electrocalalyst remains a huge challenge for hydrogen evolution reaction (HER). Herein, a facile approach to deposit Pt...
Influence of the nanostructure on the electric transport properties of resistive switching cluster-assembled gold films
- The use of Au clusters produced in the gas phase and deposited at low kinetic energy on a substrate allows the bottom-up fabrication of nanostructured metallic thin films with an extremely large...
Photoreductive synthesis of nanoscale zero-valent iron rod assisted by phosphotungstic acid over graphite carbon nitride and its enhanced removal of Cr(VI) from water
- Hexavalent chromium Cr(VI) as a virulent carcinogen has led to environmental pollution and health threats. Nanoscale zero-valent iron (NZVI) is considered one of the most effective environmental...
Highly sensitive, selective, and reusable nanofibrous membrane-based carbon polymer dots sensors for detection of Cr(VI) in water
- Core-shell structured fluorescent carbon polymer dots (CPDs) were covalently incorporated onto poly(vinyl alcohol-co-ethylene) (PVA-co-PE) nanofibers to fabricate novel nanofibrous membrane...
Enhanced removal of Cr(VI) by cation functionalized bamboo hydrochar
- Chemical modification on hydrochars can significantly improve their ability of removing heavy metal ions from wastewater, but so far no research has focused on the chemical modification through...
A review on the emerging applications of nano-cellulose as advanced coatings
- The unparalleled dependency on petroleum based sources urged the research community to focus on developing renewable products, among which nanocellulose based commodities stands at the zenith due...
Rational design of novel carbon-oxygen quantum dots for ratiometrically mapping pH and reactive oxygen species scavenging
- Heteroatom doping except oxygen is the main method to improve the performance of carbon quantum dots (CQDs), the application is also limited by unpredictable biological negative effects and...
Design of porous FeNi-carbon nanosheets by a double-effect synergistic strategy for electromagnetic wave absorption
- The electromagnetic pollution problem caused by the wide application of electromagnetic waves has seriously affected human life and prompted people to research efficient electromagnetic absorption...
Biochar considerably increases the easily available water and nutrient content in low-organic soils amended with compost and manure
- The soil hydraulic properties of two low-organic soils (Fluvisol; Regosol) were investigated following their amendment with biochar alone or in combination with manure, compost and co-composted...
Addition of walnut shells biochar to alkaline arable soil caused contradictory effects on CO2 and N2O emissions, nutrients availability, and enzymes activity
- Mitigation of greenhouse gas (GHGs) emissions and improving soil health using biochar (BC) shall help achieving the UN-Sustainable Development Goals. The impacts of walnut shells biochar (WSB)...
A review of boron removal from aqueous solution using carbon-based materials: An assessment of health risks
- Carbon-based compounds have gained attention of researchers for use in boron removal due to their properties, which make them a viable and low cost adsorbent with a high availability, as well as...
N and S doped carbon dots as novel probes with fluorescence enhancement for fast and sensitive detection of Cr(VI)
- Cr(VI) is a toxic heavy metal, which is not readily decomposed and ingested by bacteria. Therefore, there is an urgent need for a sensing method with high selectivity and high sensitivity to...
Multi-slice Ni-doped brochantite modified and polymer crosslinked cellulose paper with high wet stability and oil repellency for water disposal
- Cellulose paper (CP) is an environmentally-friendly and low-cost material, but its application in petrochemical water disposal is limited by poor wet stability and oil repellency. In this work,...
Construction of SnO2/g-C3N4 composite photocatalyst with enhanced interfacial charge separation and high efficiency for hydrogen production and Rhodamine B degradation
- SnO2/g-C3N4 heterostructure composites as effective photocatalysts were prepared by a simple calcination process with commercially available tin dioxide and melamine as precursors. The pure...
Investigation on dynamic stability and aeroelastic characteristics of composite curved pipes with any yawed angle
15/03/2022 - For the first time, in the current work, a dynamic stability analysis of a tilted curved pipe in a supersonic airflow under thermal loading is presented. The heat-transfer continuum problem is...
Enhancing hygrothermal mechanical properties stability of polymer composite based on the concrete structure
01/04/2022 - It is widely acknowledged that the hygrothermal condition can reduce the mechanical properties of fly ash filled cured epoxy resin (CEPFA). Therefore, it is of great significance to study the...
A robust and eco-friendly waterborne anti-corrosion composite coating with multiple synergistic corrosion protections
01/03/2022 - Environmentally friendly waterborne coatings have received significant attention recently due to their lower volatile organic compounds (VOCs) emission than solvent-based coatings, but their...
A microstructure image-based numerical model for predicting the fracture toughness of alumina trihydrate (ATH) ?lled poly(methyl methacrylate) (PMMA) composites
01/03/2022 - A novel finite element model is proposed here for predicting the fracture toughness using real microstructural images and accounting for several parameters that can affect the crack propagation...