A5077073321- Layered Double Hydroxides Synthesis and Applications
- Adsorption and biosorption for pollutant removal
- Nanomaterials for catalytic reactions
- Phosphorus and nutrient management
- Covalent Organic Framework Applications
- Pharmaceutical and Antibiotic Environmental Impacts
- Advanced Photocatalysis Techniques
- Water and Wastewater Treatment
- Synthesis of Tetrazole Derivatives
- Advanced oxidation water treatment
- Metal complexes synthesis and properties
- Disaster Response and Management
- Analytical chemistry methods development
- Membrane Separation Technologies
- DNA and Nucleic Acid Chemistry
- Science Education and Pedagogy
- Pigment Synthesis and Properties
- Mechanical and Optical Resonators
- Supercapacitor Materials and Fabrication
- Heavy Metal Pollution Remediation
- Experimental and Theoretical Physics Studies
- Coastal Management and Development
- Mesoporous Materials and Catalysis
Cadi Ayyad University
2018-2024
This study aims to investigate the batch mode adsorption of Cd(II) from an aqueous solution using two adsorbents: raw clay without any treatment (NC) and composite beads (CCB).The adsorbents before after were characterized several techniques such as X-ray fluorescence, diffraction, Fourier-transform infrared, scanning electron microscopy, energy-dispersive X-ray, thermogravimetric analysis, differential thermal analysis zeta potential.The influence experimental parameters mass, pH,...
In this work, the tartrazine dye is removed from wastewater by layered double hydroxide (LDH) [Zn2-Al-Cl]. LDH materials have proven to be highly effective in removing pollutants, with a low cost of synthesis, non-toxic, and they do not regenerate sludge. Several parameters were studied, retention nanomaterial optimized for pH between 6 8, equilibrium obtained after 24 hours, kinetics follows pseudo-second-order model. The isotherms are H type, follow Langmuir model, capacity reaches 100%...
Clofibric acid (CA) is widely used as regulator of lipid levels in blood; it considered one the residual drugs that have a high persistence aquatic environment. After wastewater treatment, only small amount CA can be removed. The aim this work was to investigate reduction contaminated using calcined anionic clay ZnAl-CO3, which chosen for its higher adsorption capacity, recyclability, and non-regeneration sludge. maximum retention amount, Qm, exceeded 2220 mg g–1, value DH° suggested...
Calcined anionic clay based on zinc and aluminum was used to remove the pollutant CrO42- from wastewater. This adsorbent material derived layered double hydroxide (LDH) chosen for its higher adsorption capacity, affinity most pollutants, non-toxicity. The kinetic study suggesting a high between calcined LDH (CLDH). is retained in multilayer follows Freundlich model. Thermodynamic indicates physical interaction. elimination reaches 100% with retention capacity of 3333 mg/g. After cycles...
Hydrotalcite type material based on zinc, aluminum and carbonates was synthesized by coprecipitation method its derived calcined at 500°C (CHT) used to remove the textile dye methyl orange (MO). This adsorbent has a great potential for removing pollutants from aqueous solutions without generating sludge. Adsorption performed in batch experiments. A rapid process of retention confirmed kinetics reflects high affinity between CHT MO dye. The adsorption isotherms follow Langmuir model (L type)....
In the present study, calcined layered double hydroxides (CLDHs) were obtained by heating [Zn$_{2}$-Al-CO$_{3}$] at 500 $^{\circ}$C. The adsorption of textile dye acid green 1 (AG1) CLDH was carried out different pH levels, adsorbent--adsorbate contact times, and AG1/CLDH mass ratios. Equilibrium room temperature reached after 24 h, which confirmed kinetic modeling experimental data pseudo-second-order model. is described a Langmuir-type isotherm. comparative study isotherms in uncalcined...
Layered double hydroxides (LDH) are anionic clays with high anion exchange capacities. Calcination of LDH increases significantly their retention In the present study, calcined products (CLDH) were obtained by heating [Zn 2 -Al-CO 3 ] at 500°C. The adsorption textile dye Acid Green 1 (AG1) CLDH was performed different pH values, dye-adsorbent contact time and mass ratio AG1/CLDH. equilibrium room temperature is reached after 24 h, this confirmed rapid kinetic modeling experimental data...
In this study, natural phosphate (NP) was used as adsorbent to remove Remazol Brilliant Blue R dye (RBBR) from aqueous solution. The effects of different factors that influence the uptake onto such pH solution, contact time and initial concentration has been investigated. experimental results show maximum adsorption occurred at value 11. test kinetic models shows process RBBR on NP follows pseudo-second order kinetic. isotherms data are found agree Freundlich model. amount adsorbed increases...
In DNA, the complementarity of two strands or bases is based on Watson-Crick principle. This associates a complementary base with each base. Thus, to A (Adenine) strand associated T (Thymine) strand, and vice versa. Moreover, C (Cytosine) G (Guanine) double helix assembly requires an opposite orientation strands, for reason it can be said that took antiparallel orientation. All heterogeneous combinations different DNA have been studied theoretically at B3LYP/6–311G (d,p) level calculation....
Abstract Among a high number of concepts taught in physical sciences, some them are not formulated correctly an adequate way, which allows that their comprehension by students can be ambiguous and lead to false representation. The concept spin general electronic part this topic. For reason, the main aim paper is clarify from students' life effect teaching its fuzzy way; included didactics science quantum mechanics. Then, we will suggest how behave vigilantly when responsible for such concepts.