A5089081503- Advanced oxidation water treatment
- Catalytic Processes in Materials Science
- Metal Extraction and Bioleaching
- Extraction and Separation Processes
- Catalysis and Oxidation Reactions
- Minerals Flotation and Separation Techniques
- Environmental remediation with nanomaterials
- Catalysis and Hydrodesulfurization Studies
- Industrial Gas Emission Control
- Corrosion Behavior and Inhibition
- Copper-based nanomaterials and applications
- Magnetic Properties and Synthesis of Ferrites
- Free Radicals and Antioxidants
- Magnetic properties of thin films
- Advanced Photocatalysis Techniques
- Pharmaceutical and Antibiotic Environmental Impacts
- Membrane-based Ion Separation Techniques
- Material Selection and Properties
- Radioactive element chemistry and processing
- Iron oxide chemistry and applications
- Magnesium Oxide Properties and Applications
- Concrete Corrosion and Durability
- Electrodeposition and Electroless Coatings
- Bauxite Residue and Utilization
- Computational Drug Discovery Methods
Badji Moktar-Annaba University
2011-2024
Abstract QSPR is a powerful tool for elucidating the correlation between chemical structure and property both natural synthesized compounds. In present work, half-wave reduction potential set of aziridinylquinones (Anticancer Agents [AA]) modelled using quantitative structure-electrochemistry relationship (QSER) based on multilinear regression (MLR) artificial neural network (ANN). Molecular descriptors introduced in this work were computed Dragon software (V5). Before model’s generation,...
In this study, the dissolution of CoO from CoO/Al2O3 catalyst with HCl, H2SO4, and HNO3 solutions was investigated in a batch reactor employing parameters that were expected to affect rate cobalt, such as stirring speed, temperature, acid concentration. It found 99.82% cobalt dissolved after 4 h HCl at 2 M, 75 °C, liquid-to-solid ratio (l/s) 100 mL/g, while only 31.96% 13.57% dissolutions reached H2SO4 HNO3, respectively, under same operation conditions. The difference rates due presence...
Abstract An experimental study is presented on facilitated transport of copper (II) cations through a bulk liquid membrane containing di(2-ethylhexyl) phosphoric acid (D2EHPA) in dichloromethane. The effects different parameters the such as carrier concentration, pH product and feed phases, stirring speed temperature were investigated. It was found that greatly affected by both aqueous while influenced weakly transport. extraction from ammoniacal solution very fast reaching 100% after just 1...
Rapid stabilization of pH values while Pb dissolution by three organic acids continues to progress.
In this study the leaching of CuO particles by glycine, an environmentally friendly leachant, was investigated under different conditions. It found that variation glycine and NaOH concentrations as well loading influenced slightly dissolution while temperature, volume solution nature stirring impacted greatly process. Magnetic mechanical registered inverse effects. fact, increasing from 105 to 405 mL decreased 100% 26.2% after 180 min respectively magnetic stirring, it increased 43.5% 91.7%...
Development of enhanced methods for copper particles synthesis is crucial the improvement material science and technology. Therefore, in this study a successful metal was achieved by chemical reduction. Ascorbic acid used as reducing agent. In presence soda, sulphate pentahydrated (CuSO4, 5H2O) with ascorbic at 60 °C temperature produced metallic powder total degradation (100%) ions (Cu2+). The hydroxide (OH-) necessary to achieve improve reduction reaction. Several parameters, agent volume,...
Copper(II) ions (Cu2+) in copper sulfate solutions (CuSO4) can be reduced with several carbohydrates to produce metal powder. In this study glucose was used as a reducing agent. The big challenge find the optimum conditions for reduction because they were entwined positive degradation and hydrolyses of sugar (D-glucose). For that reason, impact parameters on these investigated series experiments research study. concentration (0.2-1.6M), temperature (30-70 °C), initial sodium hydroxide...
In this study, the complexity of sodium ascorbate as a reducing reagent for copper by executing reactions with different concentrations at 30°C and concentration 5 mM was emphasized.It found that increasing molar ratio n /n Cu2+ from 1:1 to 10:1 prolonged time completion reduction 30 300 min, respectively.The were investigated cyclic voltammetry method products characterized scanning electron microscopy X-ray diffraction analyses.The synthesized materials obtained ratios composed 55.47% Cu +...
In this study we report an investigation on the recovery of iron and aluminum oxides by roasting Fe2O3/Al2O3 catalyst with KHSO4 under different operation conditions such as temperature, KHSO4/catalyst mass ratio (K/C) reaction time. It was found that 79.67% Al2O3 96.94% Fe2O3 were dissolved after 7h at 600°C K/C= 36. After separation Fe(III) Al(III) in aqueous solution a pH-controlled precipitation method, resulting Al(OH)3 dehydrated to γ-AlOOH (pseudo-boehmite) heating 105°C while γ- η...
In this study, copper particles were synthesized by using sodium ascorbate as green reducing agent under atmospheric conditions. The product was micron sized and mainly formed metallic Cu with minor presence of Cu2O. used catalyst in the discoloration methylene blue a heterogeneous Fenton-like process which H2O2 produced situ. effect different parameters such loading, dye concentration, pH solution temperature studied. Total achieved after 42 min 30 mg at 60°C pH= 3. amount situ during...
A two-level full factorial design with interactions was effectively used to screen for parameters impacting the degradation of Direct Red 89 (DR89) by thermally activated persulfate. Four variables were identified as critical: reaction temperature, persulfate concentration, initial pH medium, and DR89 concentration. The goodness fit reduced model tested generating plots descriptive statistic, residuals versus predicted responses, normal probability residuals, observed values, well examining...