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copper; copper zinc tin sulfide, etc ; absorption; cations; electromagnetic radiation; sulfur; Show all 6 Subjects
Abstract:
... Vacancy engineering has been shown to be an effective way to tune the electromagnetic parameters of electromagnetic wave (EMW) absorbers and improve their absorption properties. However, the current methods to induce the formation of sulfur vacancies are not enough, and the contribution of sulfur vacancies to EMW absorption has not been clearly described. This work proposes a method to induce sulf ...
copper, etc ; Oncorhynchus; environment; environmental impact; habitats; lakes; rivers; sediment contamination; sediments; trout; winter; British Columbia; Show all 12 Subjects
Abstract:
... Failures of mine tailings storage facilities (TSF) can have profound and long-lasting effects on the downstream receiving environment. Virtually all spills to date have been into river systems without large lakes that may buffer downstream impacts. In August 2014, the failure of the Mount Polley copper (Cu)-gold mine TSF in British Columbia, Canada, released ~25 × 10⁶ m³ of water and solids; globa ...
copper, etc ; biosynthesis; coordination polymers; cuprous oxide; detection limit; electrochemistry; gold; hydrogen sulfide; neoplasms; signal transduction; Show all 10 Subjects
Abstract:
... Hydrogen sulfide (H₂S) can not only be regarded as a critical gas signal transduction substance, but also its excess levels can lead to a range of diseases. Currently, the accurate analysis combined with electrochemical (EC) or photothermal (PT) technology for H₂S in a complex biological system remains a significant challenge. Herein, an endogenous H₂S-triggered heterojunction cuprous oxide/gold/c ...
... Photocatalytic technology is widely explored as a promising alternative for water treatments. However, low photocatalytic efficiency and selectivity usually limit its practical application. Herein, we develop the synthesis of two-dimensional zinc oxide (ZnO) nanosheets decorated with copper (Cu)-palladium (Pd) bimetallic nanoparticles (NPs) for the degradation of organic dyes in an aqueous solutio ...
copper, etc ; aluminum; carbon; circular economy; environmental degradation; governance; industry; iron; life cycle assessment; material flow analysis; China; Show all 11 Subjects
Abstract:
... Resource depletion and environmental degradation have fueled a burgeoning discipline of anthropogenic circularity since the 2010s. It generally consists of waste reuse, remanufacturing, recycling, and recovery. Circular economy and “zero-waste” cities are sweeping the globe in their current practices to address the world’s grand concerns linked to resources, the environment, and industry. Meanwhil ...
copper, etc ; electron paramagnetic resonance spectroscopy; electron transfer; graphene; humic acids; nanoparticles; peracetic acid; quantitative structure-activity relationships; sulfamethazine; toxicity; Show all 10 Subjects
Abstract:
... In this study, a graphene shell-encapsulated copper-based nanoparticles (G@Cu-NPs) was prepared and employed for peracetic acid (PAA) activation. The characterization of G@Cu-NPs confirmed that the as-prepared material was composed of Cu⁰ and Cu₂O inside and encapsulated by a graphene shell. Experimental results suggested that the synthesized G@Cu-NPs could activate PAA to generate free radicals f ...
copper, etc ; carbon; electric energy consumption; electricity; energy; environmental impact; greenhouse gases; life cycle assessment; prototypes; wind farms; wind power; China; Show all 12 Subjects
Abstract:
... Offshore wind power contributes to the decarbonization of the power system; however, its green development faces many challenges, including environmental impact concerns, scale limitations, and grid parity to go carbon neutral. This study applies life cycle assessment (LCA) to evaluate the potential environmental impact of China's first high-power prototype windfarm. The environmental impact of th ...
copper, etc ; antimony; arsenic; atmospheric deposition; cadmium; lead; mercury; nickel; raw materials; risk; runoff; soil pollution; spatial variation; thallium; topsoil; zinc; China; Show all 17 Subjects
Abstract:
... Metal smelting have brought severe metal(loid)s contamination to the soil. Spatial distribution and pollution source analysis for soil metal(loid)s in an abandoned lead/zinc smelter were studied. The results showed that soil was contaminated heavily with metal(loid)s. The mean of lead (Pb), arsenic (As), cadmium (Cd), mercury (Hg) and antimony (Sb) content in topsoil is 9.7, 8.2, 5.0, 2.3, and 1.2 ...
... Fe/S-bearing erdite flocculant has been proven to be effective in the precipitation of heavy metals from real electroplating wastewater, with the only drawback being the huge production of sludge. This sludge was rich in Fe/S/Zn/Cu/Ni and refractory to be recycled due to the extractant pollution by free Fe and the dissolution of sulphide. Herein, a multistep separation method was developed to diss ...
copper, etc ; calibration; carbon electrodes; coordination polymers; detection limit; electrochemistry; electrolytes; electron transfer; epinephrine; high performance liquid chromatography; norepinephrine; pH; quantum dots; sensors (equipment); voltammetry; Show all 15 Subjects
Abstract:
... In this research, a novel electrochemical sensor with excellent sensitivity was fabricated based on Cu quantum dot (Cu QD) and SH-SiO₂ nanoparticles immobilized on copper-metal-organic frameworks (Cu-MOFs) for determining piroxicam and simultaneous determination of norepinephrine, piroxicam and epinephrine. The nanoparticles were synthesized and characterized using FT-IR, EDX, FESEM, TEM and BET, ...
... The aim of this work is to study the immune responses of the polychaete Sabella spallanzanii after exposure to copper sulphate, an immunomodulating agent in marine organisms, and the multiple stresses caused by Escherichia coli infection, to validate the species as a model organism in marine-coastal biomonitoring programmes. Polychaetes were housed in laboratory and divided into five experimental ...
... We have proposed a novel electrochemical aptasensing strategy for efficiently detecting staphylococcus aureus (S. aureus) based on copper-based metal–organic framework encapsulated with plenty of Cu₂O nanocrystals (represented by ML-Cu₂O@Cu-MOF) synthesized using the mixed ligands of diphenylethyne-3,3′,5,5′-tetracarboxylic acid, 1,3,5-benzenetricarboxylic acid, and terephthalic acid. The ML-Cu₂O@ ...
... Non-thermal plasma (NTP) surface modification technology is a new method to control the surface properties of materials, which has been widely used in the field of environmental protection because of its short action time, simple process and no pollution. In this study, Cu/ACF (activated carbon fiber loaded with copper) adsorbent was modified with NTP to remove H₂S and PH₃ simultaneously under low ...
... Organic wastes, fertilizers, organominerals, and minerals contain nutrients essential to crops and contribute to increase productivity. However their use can also lead to the accumulation of copper and zinc, which changes the distribution of their fractions and enhances the risk of toxicity to plants and the environment, thereby working against the sustainable development goals. However, the effec ...
... In this work, the photophysical characteristics of [Cu(N^N)₂]⁺ and [Cu(N^N)(P^P)]⁺ complexes were described. The concept of thermally activated delayed fluorescence (TADF) and its development throughout the years was also explained. The importance of ΔE₍S₁–T₁₎ and spin-orbital coupling (SOC) values on the TADF behavior of [Cu(N^N)₂]⁺ and [Cu(N^N)(P^P)]⁺ complexes is discussed. Examples of ΔE₍S₁–T₁ ...
... Plastic waste is an environmental problematic, not only because of its own contamination, but also because it can act as a vector for other pollutants, particularly metals. In this work, taking advantage of the sensitivity of the LIBS technique, the presence of copper in plastics and microplastics present in a stream that receives effluents from a medium-sized city was determined. The influence of ...
... An efficient synthetic organic transformation was developed to access isoquinoline-substituted isobenzofurans by reaction of substituted 1,5-diynes with isoquinoline N-oxides. Moderate to excellent yields of isoquinoline-derived isobenzofurans were achieved by formation of a new C–C and two C–O bonds in the presence of copper catalyst in one pot. whereas quinoline-substituted isobenzofurans were o ...
copper; copper metabolism, etc ; Schizosaccharomyces pombe; amino acid sequences; iron; ligands; microbiology; oxidoreductases; toxicity; Show all 9 Subjects
Abstract:
... Iron is an essential trace metal ion required for all living organisms, and is taken up by iron transporters. Here, we identified and characterized three-candidate high-affinity (Fio1, Frp1 and Frp2) and two-candidate low-affinity iron transporters (Fet4 and Pdt1) from the fission yeast Schizosaccharomyces pombe. Protein sequence analyses revealed that Fio1 is a multicopper oxidase that contains t ...
copper; copper hydroxide; copper oxychloride, etc ; Phytophthora capsici; Piper nigrum; Pseudomonas fluorescens; biological control; black pepper; cultivars; fungi; mortality; organic production; plant growth; rhizosphere; Show all 14 Subjects
Abstract:
... Foot rot disease, also known as “quick wilt” caused by Phytophthora capsici Leonian in black pepper (Piper nigrum L.) often leads to mortality of the infected plants. No cultivated variety is completely resistant, though a few varieties show field tolerance. Plants in all growth stages are susceptible to the disease and the loss incurred will be huge when the plants die. Copper-based fungicides ar ...
copper; copper carbonate, etc ; environmental fate; occupational exposure; spectroscopy; transmission electron microscopy; wood; wood dust; Show all 8 Subjects
Abstract:
... Copper-based preservatives consisting of micronized and nanoscale copper particles have been widely used in applications for wood protection. The widespread use of these preservatives along with the potential release of copper-containing nanoparticles (Cu NPs) during the life cycle of treated wood, has raised concerns over the impacts on the environment and occupational exposure. Along with assess ...