Economía Circular

 

Economía Circular

Photocatalytic Semi?Hydrogenation of Acetylene to Polymer?Grade Ethylene with Molecular and Metal–Organic Framework Cobaloximes
22/10/2024 - Novel photocatalytic systems based on homogeneous and heterogeneous cobaloximes are reported. By leveraging their hydrogen atom transfer catalytic activity, exquisitely efficient and selective...
Neuron?Inspired Flexible Phase Change Materials for Ambient Energy Harvesting and Respiration Monitoring
22/10/2024 - Neuron?inspired flexible phase change materials (PCMs) are fabricated via a self?assembly strategy, demonstrating high photothermal conversion efficiency and excellent thermal cycle stability. Due to...
Sequential?Flow Synthesis of Donepezil: A Green and Sustainable Strategy Featuring Heterogeneous Catalysis and Hydrogenation
23/10/2024 - An atom?economical, sequential, and continuous?flow synthesis of donepezil was developed using inexpensive precursors. Key elements included highly functional heterogeneous catalytic processes for...
MCM-41 from rice husk silica as a support for Ni catalyst in the emission-free production of H2 by CH4 cracking
24/10/2024 - Selecting a sustainable source of silica from biomass waste was the research challenge that was put forth in this investigation. Herein, the MCM-41 support has been synthesized using a renewable...
Recycling waste tires into sustainable biofuel for replacing petroleum fuel in diesel engines using nanoparticles and biohydrogen
23/10/2024 - In this paper, the production of pyrolyzed oil in lab scale plant and its possible use in variable speed diesel engine with nanoparticle and secondary fuel oxy-hydrogen gas is investigated. The...
Preparation of an All-Natural Seaweed Functionalized Lyocell Fiber: A Scalable Approach from Nature to Fabrics
23/10/2024 - Based on the green and environmentally friendly production process of lyocell fiber, an innovative lyocell fiber was prepared by online-adding seaweed micron particles using a new dispersion...
Pyrolysis models for pressure treated wood and wood–plastic composite
21/10/2024 - Pressure treated wood (PTW) and wood–plastic composites such as Trex® are popular materials for the construction of decks and other auxiliary structures, which are known to significantly...
Synthesis of reaction promoters for epoxy polymerization: Enhancing storage stability and mechanical properties of one?pot epoxy systems
23/10/2024 - The proposed possible interaction model of NaY zeolite, tartaric acid molecules with PVA chains.AbstractThe effects of sodium y zeolite (NaY?zeolite) on crosslinked Polyvinyl alcohol (CrPVA)...
Superhydrophobic composite coatings for photocatalysis and oil–water separation: durable and eco-friendly solutions for industrial applications
21/10/2024 - Abstract Synthesized DE@HTDMS-SiO2 particles loaded with TiO2 nanoparticles, linked to adhesive epoxy resin and the green hydrophobic agent cetyltrimethoxysilane, were utilized to...
Experimental Study on Direct Shear Behavior of New-to-Old Interface for Recycled Aggregate Concrete with Different Replacement Ratios
22/10/2024 - The large amount of construction waste produced by the construction industry brings severe natural resource consumption and environmental pollution, elevating the awareness of sustainable...
Substantiation of the Effectiveness of Water-Soluble Hydrophobic Agents on the Properties of Cement Composites
24/10/2024 - This paper aims to verify the effect of water-soluble hydrophobisations on cementitious composites such as concrete (S1) and cement-bonded particle boards (S2). The research was focused on the...
Validating Circular End-of-Life Strategies for Domestic Post-Consumer Materials in the Latin American Region: A Life Cycle Assessment Approach
22/10/2024 - This study examines the domestic solid waste management system in the LATAM region, using the city of Guayaquil in Ecuador as a case study. Through the life cycle assessment (LCA) methodology, the...
Food Waste Biotransformation into Food Ingredients: A Brief Overview of Challenges and Opportunities
24/10/2024 - In today’s global context, challenges persist in preventing agri-food waste due to factors like limited consumer awareness and improper food-handling practices throughout the entire...
Green Recycling of Carbon/Carbon Composites by Solid-State Shear Milling Technology as a Polyamide Multi-Functional Modifier
23/10/2024 - Carbon/carbon (C/C) composite materials are widely used in aerospace, the military and nuclear energy. The outstanding mechanical qualities of C/C composites mean that they are difficult to crush and...
Development of a Matrix for Seismic Isolators Using Recycled Rubber from Vehicle Tires
24/10/2024 - Over recent decades, numerous strong earthquakes have caused widespread devastation, including citywide destruction, significant loss of life, and severe structural damage. Seismic base isolation is...
Wood Polymer Composites Based on the Recycled Polyethylene Blends from Municipal Waste and Ethiopian Indigenous Bamboo (Oxytenanthera abyssinica) Fibrous Particles Through Chemical Coupling Crosslinking
24/10/2024 - Valorization of potential thermoplastic waste is an effective strategy to address resource scarcity and reduce valuable thermoplastic waste. In this study, new ecofriendly biomass-derived wood...
Bioleaching of Industrial Metallic Steel Waste by Mixed Cultures of Thermoacidophilic Archaea
23/10/2024 - Different mixed cultures of extremely thermoacidophilic microorganisms were used for bioleaching of metalliferous industrial dust waste derived from the basic oxygen furnace (BOF) steelmaking...
An Innovative Approach to Enhance the Durability and Sustainability of Shoe Insoles
23/10/2024 - This study presents an innovative approach to designing a shoe insole with enhanced durability, sustainability, and antibacterial properties. Needle-punched non-woven recycled polyester fabrics with...
Carbon Carriers Driving the Net-Zero Future: The Role of Torrefied Biomass Pellets in Power-To-X
23/10/2024 - The latest Intergovernmental Panel on Climate Change Sixth Assessment Report urgently calls for sweeping action to mitigate the unprecedented impacts of climate change. The path to a carbon-neutral...
Nanotechnology-Based Lithium-Ion Battery Energy Storage Systems
24/10/2024 - Conventional energy storage systems, such as pumped hydroelectric storage, lead–acid batteries, and compressed air energy storage (CAES), have been widely used for energy storage....
Environmental Risk Assessment of Sustainable Concrete Through the Chemical Composition of Metals and Polycyclic Aromatic Hydrocarbons
24/10/2024 - The waste management sector is crucial for protecting the environment, conserving resources, and promoting sustainable development by ensuring efficient disposal, recycling, and minimizing the...