Economía Circular

Economía Circular

Molecular Mechanism of Substrate Oxidation in Lytic Polysaccharide Monooxygenases: Insight from Theoretical Investigations
05/12/2022 - Lytic polysaccharide monooxygenases (LPMO) are copper dependent enzymes that boost the breakdown of cellulose and other recalcitrant polysaccharides through a catalytic, oxidative reaction. However,...
CO2 fixation and PCHC depolymerization by dinuclear ??diketiminato zinc complex
05/12/2022 - Production of cyclic carbonates and(or) polycarbonates from the coupling of carbon dioxide (CO2) with epoxides is a practical strategy for CO2 fixation. Chemically recycling of the polycarbonates is...
Controllable synthesis of oxygenated carbon supported palladium nanodendrites for highly efficient nitroaromatics reduction
- Palladium nanodendrites supported on oxygenated carbon layer (Pd/ O-carbon) have been prepared herein through modulating the mass ratio of Pd (II) precursor and carbon dots derived from sucrose...
Poly(ionic liquid) membranes preserving liquid crystalline microstructures for lithium-ion enrichment
- The combination of membrane separation technology and hydrometallurgy has opened up new possibilities for the recovery and recycling of lithium from ever-growing spent lithium-ion batteries....
Analysis of the effect of heating rate on pyrolysis kinetics and product composition of copper-containing waste circuit boards
06/12/2022 - Pyrolysis is a cost-effective and environmentally benign method for recycling organic waste, which can be converted into high-energy gases and oils. Pyrolysis technology was employed in this study...
Production of aviation fuel with negative emissions via chemical looping gasification of biogenic residues: Full chain process modelling and techno-economic analysis
- The second-generation bio aviation fuel production via Chemical Looping Gasification (CLG) of biomass combined with downstream Fischer-Tropsch (FT) synthesis is a possible way to decarbonize...
High?performance epoxy composites improved by uniformly dispersed and partly thermal reduced graphene oxide sheets
05/12/2022 - AbstractTo study the combustion characteristics and fire hazard of polystyrene building exterior wall thermal insulation materials, the combustion, fire, and pyrolysis characteristics of...
Constructing robust and magnetic PU sponges modified with Fe3O4/GO nanohybrids for efficient oil/water separation
05/12/2022 - AbstractMetal oxides, due to their low cost, environmental friendliness and wide sources, have attracted great attention. We chose iron oxide/graphene oxide (Fe3O4/GO) nanohybrids to modify a PU...
Structural Characteristics and Sound Absorption Properties of Waste Hemp Fiber
06/12/2022 - In order to realize high-efficiency and high-value recycling of waste hemp fibers, the macromolecular structure, the supramolecular structure, and the morphological structure of waste hemp fibers...
Microsurfacing Pavement Solutions with Alternative Aggregates and Binders: A Full Surface Texture Characterization
06/12/2022 - The road surface texture is responsible for controlling several quality/safety road indicators, such as friction, noise, and fuel consumption. Road texture can be classified into different...
Use of Municipal Solid Waste Incineration Fly Ash in Geopolymer Masonry Mortar Manufacturing
06/12/2022 - The feasibility of partially replacing pulverized fly ash (PFA) with municipal solid waste incineration fly ash (MSWIFA) to produce ambient-cured geopolymers was investigated. The influence of...
Hydrogen Recovery from Waste Aluminum–Plastic Composites Treated with Alkaline Solution
06/12/2022 - An alternative solution to the problem of aluminum–plastic multilayer waste utilization was suggested. The process can be used for hydrogen generation and layer separation. Three...
Evaluation of plastic packaging waste degradation in seawater and simulated solar radiation by spectroscopic techniques
01/01/2023 - The goal of this study was to evaluate the degradation of plastic packaging waste in seawater and under simulated solar radiation by different spectroscopic techniques in view of their potential...
Removal of Cu2+ in Aqueous Solution with Nano-zero-Valent Iron (nZVI) Supported by Alkali-Modified Sludge Biochar
- In this study, an efficient nano-zero-valent iron supported by alkali-modified sludge biochar (nZVI@NaOH-SBC) composites were synthesized by a liquid-phase reduction method for Cu2+ removal. The...
Energy-saving COVID–19 biomedical plastic waste treatment using the thermal - Catalytic pyrolysis
01/02/2023 - The rate of Biomedical waste generation increases exponentially during infectious diseases, such as the SARS-CoV-2 virus, which burst in December 2019 and spread worldwide in a very short time,...
Influence of Activation Parameters on the Mechanical and Microstructure Properties of an Alkali-Activated BOF Steel Slag
05/12/2022 - Steel slag (SS) is a secondary material from steelmaking production with little commercial value. Its volumetric expansion and low reactivity limit the use of SS in Portland cement (PC)-based...
An Investigation on Bromine Content Assessment in e-Waste Plastics by Short Wave Infrared (SWIR) Spectroscopy
05/12/2022 - This paper reported a study based on the application of SWIR (shortwave infrared) spectroscopy to assess the presence of brominated flame retardants (BFRs) in plastic scraps coming from an e-waste...
Properties of Light Cementitious Composite Materials with Waste Wood Chips
05/12/2022 - The CO2 emissions from the cement industry and the production of waste wood chips are increasing with the rapid growth of the construction industry. In order to develop a green environmental...
Glutathione Fluorescence Sensing Based on a Co-Doped Carbon Dot/Manganese Dioxide Nanocoral Composite
05/12/2022 - Glutathione (GSH) is an antioxidant thiol that has a vital role in the pathogenesis of various human diseases such as cardiovascular disease and cancer. Hence, it is necessary to study effective...
Environmental Implications Associated with the Development of Nanotechnology: From Synthesis to Disposal
05/12/2022 - Nanotechnology remains under continuous development. The unique, fascinating, and tunable properties of nanomaterials make them interesting for diverse applications in different fields such as...
Electrochemical Properties and the Adsorption of Lithium Ions in the Brine of Lithium-Ion Sieves Prepared from Spent Lithium Iron Phosphate Batteries
05/12/2022 - Because used LiFePO4 batteries contain no precious metals, converting the lithium iron phosphate cathode into recycled materials (Li2CO3, Fe, P) provides no economic benefits. Thus, few researchers...