Abstract
Energy is a fundamental factor for socio-economic development, and the increasing global demand, combined with environmental concerns, makes the development of efficient energy storage systems essential [1]. Supercapacitors have emerged as promising devices due to their high power density, fast charge–discharge capability, and long cycle life, complementing batteries in applications...
The application of metal nanoparticles in industry and agriculture increases their environmental release, raising concerns about their potential for trophic transfer. In a 28-day experiment, Mentha spicata L. exposure to nano-silver (AgNPs) at concentrations of 1-100 mg/L via root irrigation resulted in a significant silver accumulation in the soil (up to 1447 mg/kg at 100 mg/L), which...
The development of affordable and effective scaffolds for cartilage repair remains a major challenge in regenerative medicine. In this study, novel starch–gelatin (SG) hydrogels were fabricated by aqueous casting, freeze-drying, and annealing, with systematic variation of crosslinker concentration and annealing conditions to optimize their properties. The resulting scaffolds exhibited a highly...
The work is devoted to the results of using X-ray computed tomography (CT) in studying the spatial arrangement, size distribution and shape of internal inclusions in several ceramic fragments from the Urysay complex in the Zhambyl district of the Almaty region of the Republic of Kazakhstan.
To study the internal structure of the samples, the X-ray computed tomography (CT) method was used....
ABSTRACT
Carbon dots (CDs) are quasi-spherical nanoparticles with at least one dimension less than 10 nm. They exhibit quantum confinement, showing light absorption in the UV-visible range and strong tunable emission across the visible spectrum [1].
In this research, CDs doped with nitrogen, sulfur, and phosphorus have been synthesized from sugarcane bagasse. These nanomaterials showed...
Photocatalytic efficiency of TiO₂ is often limited by fast charge recombination and insufficient surface activity. In this work, a TiO₂ photocatalyst doped with magnesium and aluminum ions (TiO₂:Mg,Al-4%) was investigated after exposure to thermal neutrons. The aim was to evaluate the effect of combined doping and neutron irradiation on photocatalytic performance. The samples were tested in...
In recent years, sodium-ion batteries (SIBs) have attracted great attention due to the high demand of resources for large-scale applications [1, 2]. Sodium is one of the most abundant elements in the Earth's crust and is close to lithium in terms of its properties.
Prussian blue (PB) and its analogues, such as Prussian white (PW), are of intense interest as cathode material for SIBS [3-5]....
