A5059717924- Adsorption and biosorption for pollutant removal
- Nanomaterials for catalytic reactions
- Catalytic Processes in Materials Science
- Extraction and Separation Processes
- Catalysis and Oxidation Reactions
- Arsenic contamination and mitigation
- Gas Sensing Nanomaterials and Sensors
- Phosphorus and nutrient management
- Fluoride Effects and Removal
- Advanced Photocatalysis Techniques
- Advanced oxidation water treatment
- Catalysis and Hydrodesulfurization Studies
- Pigment Synthesis and Properties
- Transition Metal Oxide Nanomaterials
- Multicomponent Synthesis of Heterocycles
- Recycling and Waste Management Techniques
- Luminescence Properties of Advanced Materials
- Chemical Synthesis and Characterization
- Copper-based nanomaterials and applications
- Minerals Flotation and Separation Techniques
- Covalent Organic Framework Applications
- Chemical Synthesis and Reactions
- Carbohydrate Chemistry and Synthesis
- Analytical chemistry methods development
- Mesoporous Materials and Catalysis
Chouaib Doukkali University
2000-2025
University College Dublin
2013
Laboratoire de Chimie de Coordination
1998
In this work, chitosan, a biopolymer was cross-linked using glutaraldehyde (Gl) and modified by natural apatite. The Cs-Gl@Fap composite used to adsorb methyl orange from an aqueous solution. materials were characterised SEM-EDX, FTIR, XRD TGA-DTG analysis confirming the successful synthesis of Cs-Gl@Fap. effects experimental variables on adsorption efficiency examined. Adsorption studies showed that maximum capacity 225.55 mg/g at equilibration time 120 min. pseudo-second-order rate...
A novel polymer bio-composite based on nano-hydroxyapatite (n-Hap) and chitosan (CS) (CS/n-Hap) was synthesized to effectively address toxic cadmium ions removal from water. The composition structure of CS/n-Hap were analyzed through different characterization techniques. XRD patterns affirmed that the crystalline n-Hap remained unaltered during synthesis, while FT-IR spectrum sustained all characteristic peaks both CS n-Hap, affirming successful synthesis CS/n-Hap. Adsorption studies,...
This work synthesized a novel chitosan-loaded MgAl-LDH (LDH = layered double hyroxide) nanocomposite, which was physicochemically characterized, and its performance in As(V) removal antimicrobial activity evaluated. Chitosan-loaded nanocomposite (CsC@MgAl-LDH) prepared using cross-linked natural chitosan from shrimp waste modified by Mg–Al. The main mechanisms predominating the separation of were elucidated. characteristic changes confirming modification with analyzed through Fourier...
The biocompatibility, specificity, and consistency of natural carbohydrate polymers in catalyzing organic processes have garnered significant interest. For the production compounds, a variety been employed as heterogeneous catalysts, including agarose, cellulose, chitosan, chitin, sodium alginate, carrageenan, dextrin, starch, pectin. This article provides an overview several straightforward efficient techniques for mild reaction conditions catalytic synthesis compounds employing source species.
Herein, a chitosan (CH) and fluroapatite (TNP) based CH-TNP composite was synthesized by utilizing seafood waste phosphate rock tested for divalent copper (Cu(II)) adsorptive removal from water. The XRD FT-IR data affirmed the formation of composite, while BET analysis showed that surface area (35.5 m2/g) twice CH (16.7 m2/g). Mechanistically, electrostatic, van der Waals, co-ordinate interactions were primarily responsible binding Cu(II) with composite. maximum uptake both recorded in pH...
The presence of fluoride in water has become a major concern worldwide because its chronic cancerogenic behavior humans. In order to remove from the aqueous solution, we synthesized chitosan gel beads (CB) and cross-linked (CCB) batch reactor. Thus, series experiments were carried out study influence on adsorption capacity certain parameters such as initial concentration, adsorbent mass, pH solution contact time. results obtained show that percent removal reached maximum 62% after 25 min for...
The present paper to study the immobilization of chromium ions Cr(VI) in an aqueous solution by adsorption on a natural phosphate (PN) and activated (PA).The whose main component is fluorapatite Ca10(PO4)6F2.The retention (VI) flourapatite conditioned several parameters namely pH.The initial concentration metals contact time.Results obtained showed that after 40 minutes contact.The results contact, elimination was maximum with yield 67.4% for flouraptite 75.9% phosphate.Increasing adsorbent...
Our study aims to evaluate the efficiency of dissolved iron (III) retention in synthetic solutions by adsorption on treated natural phosphate collected Khouribga region. This research focused valorization phosphate, a naturally occurring resource that is abundant Morocco. The resulting products were analyzed various methods, including FT-IR spectroscopy, X-ray diffraction (XRD) and scanning electron microscopy (SEM). In this work, we studied effect several parameters such as adsorbent...