Economía Circular

Economía Circular

A versatile single-copper-atom electrocatalyst for biomass valorization
- Single atom electrocatalysts (SAECs) exhibit intriguing catalytic performance due to their utmost atom-utilization efficiency and unique electronic structure. However, the application of SAECs is...
Surface tailoring enables colloidal quantum dot: Metal-oxide nanocrystal hybrid ink for broadband photon energy conversion
- Blending multiple functional nanoparticles (NPs) into one solvent and forming a stable hetero-ink is a promising technology to realize efficient solution-processed heterogeneous structures for...
Selenium and molybdenum synergistically alleviate chromium toxicity by modulating Cr uptake and subcellular distribution in Nicotiana tabacum L.
- Chromium (Cr) is a harmful heavy metal that poses a serious threat to plants and animals. Selenium (Se) and molybdenum (Mo) are two beneficial elements for plant growth and resistance. However,...
Regio- and stereoselective biocatalytic hydration of fatty acids from waste cooking oils en route to hydroxy fatty acids and bio-based polyesters
- The development of biorefinery approaches is of great relevance for the sustainable production of valuable compounds. In accordance with circular economy principles, waste cooking oils (WCOs) are...
Utilization of walnut shell by deep eutectic solvents: enzymatic digestion of cellulose and preparation of lignin nanoparticles
- Studies have been devoted to deep eutectic solvent (DES) pretreatment of biomass to improve its enzymatic efficiency, while subsequent processing of regenerated lignin was absent. Nanosizing is...
Enhanced photodetection properties of GO incorporated flexible PVDF membranes under solar spectrum
29/11/2022 - Abstract Here we report the enhanced photodetection capabilities of graphene oxide (GO) incorporated highly flexible polyvinylidene fluoride (PVDF) membranes when illuminated by...
Aerospace, Vol. 9, Pages 769: Hybrid Electric Powered Multi-Lobed Airship for Sustainable Aviation
29/11/2022 - The excessive depletion of fossil fuels and increasing environmental concerns have led to the need to explore alternative sources of power for aircraft. This has spurred various stakeholders in the...
Valorisation of Underutilized Grass Fibre (Stem) as a Potential Material for Paper Production
29/11/2022 - An integrated and feasible approach was proposed using the underutilized grass fibre (stem) derived from Napier grass and sugarcane for paper production in this study. To enhance paper strength,...
Effect of Processing Time of Steam-Explosion for the Extraction of Cellulose Fibers from Phoenix canariensis Palm Leaves as Potential Renewable Feedstock for Materials
29/11/2022 - This paper briefly discusses the utilization of pruning wastes as a lignocellulosic source of cellulose fibers, which could be of potential use in the development of valuable materials such as...
Plant Probiotic Endophytic Pseudomonas flavescens D5 Strain for Protection of Barley Plants from Salt Stress
29/11/2022 - Soil salinity has become a global issue that is directly related to land degradation and results in many changes in climate, ecosystem services, and biodiversity. The present study focuses on the...
Design of biorefineries towards carbon neutrality: A critical review
- The increase in worldwide demand for energy is driven by the rapid increase in population and exponential economic development. This resulted in the fast depletion of fossil fuel supplies and...
Towards an enhanced nanocarbon crystallization from lignin
- In this work, a new approach to the synthesis of lignin-derived nanocarbon crystals based on lignin depolymerization is proposed. The lignin chemical structure was modified through a controlled...
Effect of changing injection pressure on Mahua oil?based biodiesel combustion with blended Al2O3 nanoparticles on CI engine performance and emission parameters
27/11/2022 - Alternative fuels have drawn a lot of interest as oil and gas sources have depleted and environmental concerns have grown. An alternative fuel being researched as a potential replacement for fossil...
Dynamic cross-linked polyurethane hot-melt adhesive with high biomass content and high adhesive strength simultaneously
- Polyurethane hot-melt adhesives (PU-HMAs) have been widely used due to their outstanding advantages, however, the high dependence on non-renewable petrochemical resources has limited their green...
Electrodeposition of Copper Oxides as Cost-Effective Heterojunction Photoelectrode Materials for Solar Water Splitting
28/11/2022 - Photoelectrocatalytic hydrogen production is crucial to reducing greenhouse gas emissions for carbon neutrality and meeting energy demands. Pivotal advances in photoelectrochemical (PEC) water...
Thermal and Stress Properties of Briquettes from Virginia Mallow Energetic Crops
28/11/2022 - The article discusses the influence of briquetting/compaction parameters. This includes the effects of pressure and temperature on material density and the thermal conductivity of biomass compacted...
High Power Factor of Ag2Se/Ag/Nylon Composite Films for Wearable Thermoelectric Devices
28/11/2022 - A flexible thermoelectric device has been considered as a competitive candidate for powering wearable electronics. Here, we fabricated an n-type Ag2Se/Ag composite film on a flexible nylon substrate...
Comprehensive Review of Hydrothermal Pretreatment Parameters Affecting Fermentation and Anaerobic Digestion of Municipal Sludge
28/11/2022 - Municipal solid waste treatment and disposal have become one of the major concerns in waste management due to the excessive production of waste and higher levels of pollution. To address these...
Effect of Temperature and Wind Speed on Efficiency of Five Photovoltaic Module Technologies for Different Climatic Zones
28/11/2022 - The objective of this study is to investigate the effect of temperature and wind speed on the performance of five photovoltaic (PV) module technologies for different climatic zones of Pakistan. The...
Influence of Different Pretreatment Methods and Conditions on the Anaerobic Digestion Efficiency of Spent Mushroom Substrate
28/11/2022 - Consumption of mushrooms has recently increased due to their health benefits; consequently, increased mushroom cultivation generates large volumes of spent mushroom substrate (SMS) and effective...
Prospective carbon nanofibers based on polymer of intrinsic microporosity (PIM-1): Pore structure regulation for higher carbon sequestration and renewable energy source applications
03/01/2023 - Polymer of intrinsic microporosity (PIM-1) is characterized by a developed microporous structure. Needle-free Nanospider™ electrospinning of the PIM-1 solution with subsequent pyrolysis either...