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Now showing items 1211-1220 of 1235
Recovery of tungsten trioxide from waste diamond core drilling crowns by nitric acid leaching
(International Journal of Refractory Metals & Hard Materials, 2021)
A cost-effective and simple hydrometallurgy procedure for recycling the diamond core drilling crowns by nitric acid leaching, followed by the sodium hydroxide leaching, has been developed. The effect of temperature, nitric ...
Cytotoxicity of the gold complex based on mercaptotriazole - A comparison with the conventional cyanide electrolyte
(Journal of the Indian Chemical Society, 2021)
The study presents the 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay results on human erythroleukemia K562 cell line to compare the toxicity of electrolytes based on the mercaptotriazole gold ...
Application of Supercritical Solvent Impregnation for Production of Zeolite Modified Starch-Chitosan Polymers with Antibacterial Properties
(MDPI, Basel, 2020)
In the present study, supercritical solvent impregnation (SSI) has been applied to incorporate thymol into bio-composite polymers as a potential active packaging material. Thymol, a natural component with a proven antimicrobial ...
The optimization of glycidyl methacrylate based terpolymer monolith synthesis: an effective Candida rugosa lipase immobilization support
(Springer, Dordrecht, 2020)
In this work, the optimization of synthesis of terpolymer monolith based on glycidyl methacrylate (GMA), ethylene glycol dimethacrylate (EGDMA) and additional cross-linkers: trimethylolpropanetriacrylate (TMPTA) or triethylene ...
Core–shell carbon fiber@Co1.5Mn1.5O4 mesoporous spinel electrode for high performance symmetrical supercapacitors
(Elsevier B.V., 2020)
We report a mesoporous composite system consisting of carbon fiber cores surrounded with Co1.5Mn1.5O4 spinel nanocrystal shells, synthesized by a simple two-step process involving single-nozzle co-electrospinning and ...
The effect of cesium dopant on APCVD graphene coating on copper
(Elsevier, Amsterdam, 2020)
This study reports in-situ cesium-doped graphene (G/Cs) coating obtained by introducing Cs2CO3 into the atmospheric pressure chemical vapor deposition (APCVD) furnace during graphene deposition on copper. The successful ...
Supercritical CO2 Impregnation of Thymol in Thermoplastic Starch-Based Blends: Chemico-Physical Properties and Release Kinetics
(MDPI, 2022)
The aim of the present study was to investigate starch-based materials, prepared in an environmentally friendly way and from renewable resources, suitable for the development of biodegradable active food packaging. For ...
A detailed UV-Vis spectral investigation of six azo dyes derived from benzoic- and cinnamic acids: experimental and theoretical insight
(Comptes Rendus Chimie, 2021)
Six donor-pi-acceptor azo dyes, with altered donor- (p-hydroxyphenyl-and naphthalene-2ol) and carboxylic based acceptor groups, were subjected to detailed solvatochromic and tautomeric investigation in different environments ...
Structural insight into the fiber dyeing ability: Pyridinium arylazo pyridone dyes
(Elsevier Ltd., 2021)
Herein, we report the synthesis and characterization of nine 6-hydroxy-4-methyl-3-pyridinium-2-pyridone based azo dyes, wherein, eight of them being novel. Used building blocks ensured water solubility of six dyes and made ...
Structural, microstructural and mechanical properties of sintered iron-doped mullite
(Elsevier, Amsterdam, 2020)
The study of an effect of iron doping on the structural, microstructural and mechanical properties of sintered iron-doped mullite is presented. The results of phase composition, performed in detail by Mossbauer spectroscopy ...