Economía Circular

 

Economía Circular

Covalent Organic Framework Nanoarchitectonics: Recent Advances for Precious Metal Recovery
19/06/2024 - The recovery of precious metals (PMs) from secondary resources has garnered significant attention due to environmental and economic considerations. Covalent organic frameworks (COFs) have emerged as...
Ecological consequences of biochar and hydrochar amendments in soil: assessing environmental impacts and influences
20/06/2024 - Anthropogenic activities have caused irreversible consequences on our planet, including climate change and environmental pollution. Nevertheless, reducing greenhouse gas (GHG) emissions and...
A critical review on the influence of operating parameters and feedstock characteristics on microwave pyrolysis of biomass
18/06/2024 - Biomass pyrolysis is the most effective process to convert abundant organic matter into value-added products that could be an alternative to depleting fossil fuels. A comprehensive understanding...
Effects of residual foaming agent and defoamer on defoaming-flocculation-filterpress characteristics of earth pressure balance shield muck
18/06/2024 - Foaming agents as a combination of several components are usually used as soil conditioning during earth pressure balance shield (EPBS) tunnelling. These residues in waste EPBS muck lead to a...
Porous Polypyrrolidines for Highly Efficient Recovery of Precious Metals through Reductive Adsorption Mechanism
16/06/2024 - The highly porous poly?pyrrolidines (e.g. BIT?POP?17) with isolated alkene linkers can recover precious metal ions such as Au3+ very efficiently. The high adsorption capacity toward Au3+ exceeds the...
Challenges in the Recycling of Battery Casing Materials
14/06/2024 - The lithium?ion battery casing, which has received little attention to date, can be mechanically sorted into product concentrates. Common sorting processes for recycling, such as air classification,...
Bridging Homogeneously and Heterogeneously Catalyzed Higher?Alcohol Synthesis via Cobalt?Based Catalysts
14/06/2024 - Industrial?scale higher?alcohol synthesis (HAS) is highly desired, but deeper insights into reaction mechanisms and active sites are still needed. This review summarizes well?explored Co?based...
RuPHOX?Ru Catalyzed Asymmetric Cascade Hydrogenation of 3?Substituted Chromones for the Synthesis of Corresponding Chiral Chromanols
14/06/2024 - An efficient RuPHOX?Ru catalyzed asymmetric cascade hydrogenation of 3?substituted chromones has been achieved under mild reaction conditions, affording the corresponding chiral 3?substituted...
Municipal Solid and Plastic Waste Co?pyrolysis Towards Sustainable Renewable Fuel and Carbon Materials: A Comprehensive Review
16/06/2024 - This review tackles the challenges of worldwide waste management, focusing on renewable and sustainable fuels and waste recycling through the exploration of co?pyrolysis as an innovative method. It...
Gate-to-grave assessment of plastic from recycling to manufacturing of TENG: a comparison between India and Singapore
15/06/2024 - This study assesses the viability of recycled plastic-based triboelectric nanogenerators (TENGs) for sustainable energy harvesting in India and Singapore, concurrently examining plastic waste...
Pyrolytic urban mining of waste printed circuit boards: an enviro-economic analysis
17/06/2024 - E-waste, a global environmental concern resulting from supply chain inefficiency, also offers the opportunity to recover valuable materials, including general and rare earth metals. Waste printed...
Synthesis and Application of Robust Spiro [Fluorene?9] CAAC Ruthenium Alkylidene Complexes for the „One?Pot“ Conversion of Allyl Acetate to Butane?1,4?diol
12/06/2024 - A series of a novel CAAC ligands featuring a spiro?fluorene group have been synthesized and complexed with ruthenium alkylidenes, yielding the corresponding Hoveyda?type derivatives as a new family...
The methods for improving the biodegradability of oily sludge: a critical review
13/06/2024 - Biological degradation method, as an environmentally friendly, low-carbon, and clean pollution treatment technology, is widely used for the harmless disposal of oily sludge. The biodegradability...
Engineering superhydrophobicity: a survey of coating techniques for silicone-based oil–water separation membranes
13/06/2024 - Oil spills in the ocean and the release of contaminated wastewater from industries cause significant harm to the ecosystem and water sources. To tackle this environmental problem, oil–water...
Efficient Dynamic Crosslinking for Compatibilizing Immiscible Mixed Plastics through in situ Generated Singlet Nitrenes
07/06/2024 - Creating a sustainable economy for plastics demands the exploration of new strategies for efficient management of mixed plastic waste. The inherent incompatibility of different plastics poses a major...
Recycling of Thermoplastic Glass Fiber?Reinforced Composites Using High?Voltage Fragmentation
06/06/2024 - Separation of a polymer profile made of glass fiber?reinforced thermoplastic sheathing material and a polyethylene terephthalate foam core was studied for recycling, comparing comminution by a...
Bridging dehydrogenation and hydrogenation in heterogeneous catalysis: A demonstration of a unified catalytic approach
08/06/2024 - In the pursuit of enhancing the applications of hydrogen as an energy carrier, this research delved into the utilization of a singular hybrid catalyst capable of performing both dehydrogenation and...
Unlocking the potential of low concentration biodiesel blended with green synthesized novel carbon black nanoparticles from Ricinus communis outer shell: An experimental study under different compression ratios and EGR concentrations
09/06/2024 - The outer prickly shells of the Ricinus communis (castor plant) have intrigued researchers interested in the synthesis of carbon black (CB) nanoparticles because of their excellent biocompatibility,...
Catalytic pyrolysis of torrefied biomass with molecular sieve catalysts to produce hydrocarbon rich biocrude
09/06/2024 - The downstream processing of biocrudes obtained from direct biomass pyrolysis poses significant challenges due to stability issues, necessitating costly upgrading for further coprocessing with...
A multistimuli?responsive recyclable poly(vinyl alcohol)/perylene imide hydrogel of high?performance piezoresistive sensors for human wearable devices
07/06/2024 - Schematic representation of isocyanate chitin?modified PS?DVB microspheres.AbstractIn this work, a two?step activated swelling technique was effectively employed to successfully synthesize...
Effortless impregnation method for melamine formaldehyde foams exhibiting elevated thermal stability and exceptional flame retardant characteristics
07/06/2024 - Recycling of polyester bottle waste to synthesize functional acid dye.AbstractNowadays, waste management is gaining popularity to reduce the environmental impact made by human beings. There is a dire...