The structural defect effect of impurities on silicon carbide (SiC) was studied to determine the luminescence properties with temperature-dependent photoluminescence (PL) measurements. Single 4H-SiC crystals were fabricated using three different 3C-SiC starting materials and physical vapor transport method at a high temperature 100 Pa in an argon atmosphere. correlation between impurity levels ...

Polycrystalline thin films of molybdenum-doped rhenium disulphide (Mo-doped ReS2) alloys were synthesised by aerosol-assisted chemical vapour deposition (AACVD) using precursor solutions containing (1) [Re(S2CC6H5)(S3CC6H5)2], and (2) [Mo(S2CNEt2)4]. Synthesised characterised powder X-Ray diffraction (p-XRD), Raman spectroscopy, scanning electron microscope (SEM), transmission (TEM), inductivel...

Cada vez mais os elementos terras raras (ETRs) ganham destaque devido à sua importância na produção de bens alta tecnologia. Atualmente, uma alternativa para a extração por solvente utilizada nas indústrias é utilizando agentes complexantes como EDTA, ácido cítrico e lático. Esse método agride menos o meio ambiente permite separar purificar mistura desses elementos. Dessa forma, torna-se fundam...

An analytical method with no need for laborious sample preparation before determining the total Sn in canned tomatoes by hydride generation (HG) coupled to inductively plasma optical emission spectrometry (ICP OES) was developed. The ultrasound-assisted extraction various reagents (acidic media: HCl, HNO3, CH3COOH or aqua regia and alkaline: TMAH) that could replace traditional wet digestion pr...

High-purity quartz (HPQ) is an important material widely used in many high-tech industries. It a product processed from pure natural raw materials, so selecting suitable the key to successfully processing HPQ. Hydrothermal vein one of most likely materials be purified into HPQ because its high SiO2 content. This study focuses on evaluation potential two gold-bearing tailing resources Chibougama...

© Kochmann This article is distributed under the terms of the Creative Commons Attribution 4.0 International License, which permits unrestricted use, distribution, and redistribution in any medium, provided that the original author and source are credited. ICP–OES is a common technique in analytical chemistry, which is characterized by simplicity, simultaneous multi-elemental determination capa...