younes moussaoui - Academia.edu (original) (raw)

Papers by younes moussaoui

Research paper thumbnail of Carboxymethyl cellulose from Opuntia ficus-indica (Cactaceae) for cross-linked films

Research paper thumbnail of Biactivation de la réaction de sonogashira par lacatalyse par transfert de phase et sous irradiation ultrasonique

Research paper thumbnail of Annual Plant: Sources of Fibres, Nanocellulose and Cellulosic Derivatives

Composites Science and Technology

Research paper thumbnail of Adsorption studies of cationic Safranin and anionic Remazol Brilliant Blue R dyes onto Tamarix aphylla’s stem

International Journal of Environmental Science and Technology

Research paper thumbnail of New lanthanum coordination complex with high second harmonic generation: Growth, crystal structure and physicochemical characterization

Journal of Organometallic Chemistry, 2023

Research paper thumbnail of Anodic oxidation of nitrobenzene on BDD electrode: Variable effects and mechanisms of degradation

Separation and Purification Technology, Apr 1, 2013

The electrochemical oxidation of pesticide, nitrobenzene (NB) as one kind of pesticide that is po... more The electrochemical oxidation of pesticide, nitrobenzene (NB) as one kind of pesticide that is potentially dangerous and biorefractory, was studied by galvanostatic electrolysis using boron-doped diamond (BDD) as anode. The influence of several operating parameters, such as applied current density, supporting electrolyte, and initial pH value, was investigated. The best degradation occurred in the presence of Na 2 SO 4 (0.05 M) as conductive electrolyte. After 8 h, nearly complete degradation of nitrobenzene was achieved (88%) using BDD electrodes at pH = 3 and at current density equals 60 mA cm À2. The decay kinetics of nitrobenzene follows a pseudo-first-order reaction. Aromatic intermediates such as phenol, catechol, resorcinol, 1,2,4-trihydroxybenzene, hydroquinone and benzoquinone and carboxylic acids such as maleic glycolic, malonic, glyoxilic and oxalic, have been identified and followed during the nitrobenzene treatment by chromatographic techniques. From these anodic oxidation by-products, a plausible reaction sequence for NB mineralization on BDD anodes is proposed.

Research paper thumbnail of Precipitation solvents effect on the extraction of mucilaginous polysaccharides from Opuntia ficus-indica (Cactaceae): Structural, functional and rheological properties

Industrial Crops and Products, Oct 1, 2023

Research paper thumbnail of Advancements of electrochemical removal of o-methylphenol from aqueous using BDD anode compared to Pt one: Kinetics and mechanism determination

Iranian Journal of Chemistry & Chemical Engineering-international English Edition, May 27, 2020

The oxidation of 216 mg L-1 o-methylphenol was studied in acidic aqueous solution using boron-dop... more The oxidation of 216 mg L-1 o-methylphenol was studied in acidic aqueous solution using boron-doped diamond (BDD) and platinum (Pt) anodes. o-methylphenol was oxidized by hydroxyl radicals generated on the anode used, however, there was a significant distinction betwixt the BDD and Pt anodes in the effectiveness and accomplishment of electrochemical degradation. o-methylphenol was rapidly mineralized at the BDD anode, but its degradation was much slower at the Pt anode with a Total Organic Carbon (TOC) removal of 98% and 65% for BDD and Pt anodes, respectively. Using BDD anode, 3-methylcatechol, methylhydroquinone and maleic, fumaric, pyruvic, formic, glyoxylic, succinic, oxalic and acetic acids were detected. But, there was a formation of dark-colored polymeric compounds and precipitates in the solutions electrolyzed by the Pt anode, which was not observed for the BDD cells.

Research paper thumbnail of Optimization of the Preparation of Activated Carbon from Prickly Pear Seed Cake for the Removal of Lead and Cadmium Ions from Aqueous Solution

Sustainability, Mar 10, 2022

This article is an open access article distributed under the terms and conditions of the Creative... more This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY

Research paper thumbnail of Optimization of the synthesis based on Resorcine and formaldehyde to obtain carbon nanoxérogels

IOP conference series, Feb 7, 2012

The sol-gel method consists on obtaining very pure products from selected precursors. Indeed, syn... more The sol-gel method consists on obtaining very pure products from selected precursors. Indeed, synthesizing very pure activated carbon (> 99% carbon) using organic precursors containing only carbon and oxygen as hetero atoms to form a polymeric resin by pyrolysis. The proposed synthesis reaction is in the border of two sciences: the Sol-gel and polymerization. The polymerization by mechanism followed by the initiation and propagation, the sol-gel by evolution of the media environment starting with a solution of various ingredients to have the particle's sol in the emulsion solvent. The sol turns into a gel which is the result of three-dimensional crosslinking of the material trapping the solvent. In this work we propose to introduce a new method of synthesis of these nanoxérogels by polycondensation of resorcinol with formaldehyde in two different media (water and acetone) in the presence of two catalysts (acetic acid and sodium carbonate). By varying the following parameters: solvent, nature and quantity of catalyst, 16 samples were obtained. By the method of factorial design (2 k): an optimization is realized by following three characteristics of nanoxerogels prepared: the density, the gel time and performance. The results indicate the best conditions for the synthesis of a carbon nanoxerogel: the lowest quantity of acid catalyst in aqueous media (A5).

Research paper thumbnail of Batch and continuous column adsorption of indigo carmine onto activated carbon derived from date palm petiole

Journal of environmental chemical engineering, Feb 1, 2019

Highlights  Mesoporous activated carbon was prepared from date palm petiole.  Activated carbon ... more Highlights  Mesoporous activated carbon was prepared from date palm petiole.  Activated carbon was used for the removal of IC in batch and fixed bed columns.  A pseudo-second-order model described the kinetics of the adsorption process.  The isotherms were found to be best described by the Langmuir model in batch mode.  Breakthrough curves of Bohart-Adams, Thomas, Yoon-Nelson and Yan models were used.

Research paper thumbnail of Original Flavored/Aromatized Chemlali Olive Oil by the Green Addition of Polyphenol-Rich Extracts from Tunisian Medicinal Plants (Verbena officinalis L.): Part II

Chemistry Africa, May 30, 2023

Research paper thumbnail of Schinus Molle: Currently Status and Opportunity

Composites science and technology, 2023

Research paper thumbnail of Activated Carbon from Agricultural Waste for the Removal of Pollutants from Aqueous Solution

Composites science and technology, 2023

Research paper thumbnail of Chemical Characterization of Natural Species and Study of Their Application for Papermaking

Composites science and technology, 2023

Research paper thumbnail of Activated Carbon from Date Palm Rachis for Continuous Column Adsorption of o-Cresol

Research paper thumbnail of Catalyse par transfert de phase solide/liquide en l'absence de solvant

Comptes Rendus Chimie, Jul 1, 2007

Solvent-free solid/liquid-phase-transfer catalysis. In this paper, we are describing the influenc... more Solvent-free solid/liquid-phase-transfer catalysis. In this paper, we are describing the influence of the phase-transfer catalyst in heterogeneous medium on the yield of some anionic, bimolecular reactions such as the Michael and Baylis–Hillman reactions.

Research paper thumbnail of Chemical Composition and Biological Activities of Pistacia vera L. Leaves oil

Chemistry Africa, Dec 12, 2022

Research paper thumbnail of ChemInform Abstract: Synthesis of 3,4-Dihydropyrimidinones via Phase Transfer Catalysis

ChemInform, Jan 31, 2014

Synthesis of 3,4-Dihydropyrrolo[2,1-a]isoquinolines Based on [3 + 2] Cycloaddition Initiated by R... more Synthesis of 3,4-Dihydropyrrolo[2,1-a]isoquinolines Based on [3 + 2] Cycloaddition Initiated by Rh2(cap)4-Catalyzed Oxidation.-Azomethine ylides, generated in situ, undergo 1,3-dipolar cycloaddition with various dipolarophiles followed by oxidative aromatization in the presence of NBS to afford the title skeleton.-(

Research paper thumbnail of Pd supported on locust bean gum as reusable green catalyst for Heck and Sonogashira coupling reactions and 4‐nitroaniline reduction under ultrasound irradiation

Applied Organometallic Chemistry, Aug 29, 2022

An easy and environmentally friendly method has been developed for locust bean gum extraction fro... more An easy and environmentally friendly method has been developed for locust bean gum extraction from carob seeds to be used as natural support of palladium. The reaction was carried out in water under ultrasonic irradiation for a short period of time (30 min). This catalyst was characterized by different analytical techniques such as ultraviolet–visible (UV‐vis), Fourier transform infrared (FTIR), thermogravimetric analysis (TGA), scanning electron microscopy/energy dispersive X‐ray spectroscopy (SEM/EDX), elemental mapping analysis, and X‐ray diffraction (XRD). The catalytic activity of Pd supported by locust bean gum was studied in Heck and Sonogashira cross‐coupling reactions in different conditions under ultrasonic irradiation. Likewise, it was examined as green catalyst of 4‐nitroaniline reduction at room temperature in water. The reusability of the catalyst was verified for five consecutive cycles, where excellent yields were obtained.

Research paper thumbnail of Carboxymethyl cellulose from Opuntia ficus-indica (Cactaceae) for cross-linked films

Research paper thumbnail of Biactivation de la réaction de sonogashira par lacatalyse par transfert de phase et sous irradiation ultrasonique

Research paper thumbnail of Annual Plant: Sources of Fibres, Nanocellulose and Cellulosic Derivatives

Composites Science and Technology

Research paper thumbnail of Adsorption studies of cationic Safranin and anionic Remazol Brilliant Blue R dyes onto Tamarix aphylla’s stem

International Journal of Environmental Science and Technology

Research paper thumbnail of New lanthanum coordination complex with high second harmonic generation: Growth, crystal structure and physicochemical characterization

Journal of Organometallic Chemistry, 2023

Research paper thumbnail of Anodic oxidation of nitrobenzene on BDD electrode: Variable effects and mechanisms of degradation

Separation and Purification Technology, Apr 1, 2013

The electrochemical oxidation of pesticide, nitrobenzene (NB) as one kind of pesticide that is po... more The electrochemical oxidation of pesticide, nitrobenzene (NB) as one kind of pesticide that is potentially dangerous and biorefractory, was studied by galvanostatic electrolysis using boron-doped diamond (BDD) as anode. The influence of several operating parameters, such as applied current density, supporting electrolyte, and initial pH value, was investigated. The best degradation occurred in the presence of Na 2 SO 4 (0.05 M) as conductive electrolyte. After 8 h, nearly complete degradation of nitrobenzene was achieved (88%) using BDD electrodes at pH = 3 and at current density equals 60 mA cm À2. The decay kinetics of nitrobenzene follows a pseudo-first-order reaction. Aromatic intermediates such as phenol, catechol, resorcinol, 1,2,4-trihydroxybenzene, hydroquinone and benzoquinone and carboxylic acids such as maleic glycolic, malonic, glyoxilic and oxalic, have been identified and followed during the nitrobenzene treatment by chromatographic techniques. From these anodic oxidation by-products, a plausible reaction sequence for NB mineralization on BDD anodes is proposed.

Research paper thumbnail of Precipitation solvents effect on the extraction of mucilaginous polysaccharides from Opuntia ficus-indica (Cactaceae): Structural, functional and rheological properties

Industrial Crops and Products, Oct 1, 2023

Research paper thumbnail of Advancements of electrochemical removal of o-methylphenol from aqueous using BDD anode compared to Pt one: Kinetics and mechanism determination

Iranian Journal of Chemistry & Chemical Engineering-international English Edition, May 27, 2020

The oxidation of 216 mg L-1 o-methylphenol was studied in acidic aqueous solution using boron-dop... more The oxidation of 216 mg L-1 o-methylphenol was studied in acidic aqueous solution using boron-doped diamond (BDD) and platinum (Pt) anodes. o-methylphenol was oxidized by hydroxyl radicals generated on the anode used, however, there was a significant distinction betwixt the BDD and Pt anodes in the effectiveness and accomplishment of electrochemical degradation. o-methylphenol was rapidly mineralized at the BDD anode, but its degradation was much slower at the Pt anode with a Total Organic Carbon (TOC) removal of 98% and 65% for BDD and Pt anodes, respectively. Using BDD anode, 3-methylcatechol, methylhydroquinone and maleic, fumaric, pyruvic, formic, glyoxylic, succinic, oxalic and acetic acids were detected. But, there was a formation of dark-colored polymeric compounds and precipitates in the solutions electrolyzed by the Pt anode, which was not observed for the BDD cells.

Research paper thumbnail of Optimization of the Preparation of Activated Carbon from Prickly Pear Seed Cake for the Removal of Lead and Cadmium Ions from Aqueous Solution

Sustainability, Mar 10, 2022

This article is an open access article distributed under the terms and conditions of the Creative... more This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY

Research paper thumbnail of Optimization of the synthesis based on Resorcine and formaldehyde to obtain carbon nanoxérogels

IOP conference series, Feb 7, 2012

The sol-gel method consists on obtaining very pure products from selected precursors. Indeed, syn... more The sol-gel method consists on obtaining very pure products from selected precursors. Indeed, synthesizing very pure activated carbon (> 99% carbon) using organic precursors containing only carbon and oxygen as hetero atoms to form a polymeric resin by pyrolysis. The proposed synthesis reaction is in the border of two sciences: the Sol-gel and polymerization. The polymerization by mechanism followed by the initiation and propagation, the sol-gel by evolution of the media environment starting with a solution of various ingredients to have the particle's sol in the emulsion solvent. The sol turns into a gel which is the result of three-dimensional crosslinking of the material trapping the solvent. In this work we propose to introduce a new method of synthesis of these nanoxérogels by polycondensation of resorcinol with formaldehyde in two different media (water and acetone) in the presence of two catalysts (acetic acid and sodium carbonate). By varying the following parameters: solvent, nature and quantity of catalyst, 16 samples were obtained. By the method of factorial design (2 k): an optimization is realized by following three characteristics of nanoxerogels prepared: the density, the gel time and performance. The results indicate the best conditions for the synthesis of a carbon nanoxerogel: the lowest quantity of acid catalyst in aqueous media (A5).

Research paper thumbnail of Batch and continuous column adsorption of indigo carmine onto activated carbon derived from date palm petiole

Journal of environmental chemical engineering, Feb 1, 2019

Highlights  Mesoporous activated carbon was prepared from date palm petiole.  Activated carbon ... more Highlights  Mesoporous activated carbon was prepared from date palm petiole.  Activated carbon was used for the removal of IC in batch and fixed bed columns.  A pseudo-second-order model described the kinetics of the adsorption process.  The isotherms were found to be best described by the Langmuir model in batch mode.  Breakthrough curves of Bohart-Adams, Thomas, Yoon-Nelson and Yan models were used.

Research paper thumbnail of Original Flavored/Aromatized Chemlali Olive Oil by the Green Addition of Polyphenol-Rich Extracts from Tunisian Medicinal Plants (Verbena officinalis L.): Part II

Chemistry Africa, May 30, 2023

Research paper thumbnail of Schinus Molle: Currently Status and Opportunity

Composites science and technology, 2023

Research paper thumbnail of Activated Carbon from Agricultural Waste for the Removal of Pollutants from Aqueous Solution

Composites science and technology, 2023

Research paper thumbnail of Chemical Characterization of Natural Species and Study of Their Application for Papermaking

Composites science and technology, 2023

Research paper thumbnail of Activated Carbon from Date Palm Rachis for Continuous Column Adsorption of o-Cresol

Research paper thumbnail of Catalyse par transfert de phase solide/liquide en l'absence de solvant

Comptes Rendus Chimie, Jul 1, 2007

Solvent-free solid/liquid-phase-transfer catalysis. In this paper, we are describing the influenc... more Solvent-free solid/liquid-phase-transfer catalysis. In this paper, we are describing the influence of the phase-transfer catalyst in heterogeneous medium on the yield of some anionic, bimolecular reactions such as the Michael and Baylis–Hillman reactions.

Research paper thumbnail of Chemical Composition and Biological Activities of Pistacia vera L. Leaves oil

Chemistry Africa, Dec 12, 2022

Research paper thumbnail of ChemInform Abstract: Synthesis of 3,4-Dihydropyrimidinones via Phase Transfer Catalysis

ChemInform, Jan 31, 2014

Synthesis of 3,4-Dihydropyrrolo[2,1-a]isoquinolines Based on [3 + 2] Cycloaddition Initiated by R... more Synthesis of 3,4-Dihydropyrrolo[2,1-a]isoquinolines Based on [3 + 2] Cycloaddition Initiated by Rh2(cap)4-Catalyzed Oxidation.-Azomethine ylides, generated in situ, undergo 1,3-dipolar cycloaddition with various dipolarophiles followed by oxidative aromatization in the presence of NBS to afford the title skeleton.-(

Research paper thumbnail of Pd supported on locust bean gum as reusable green catalyst for Heck and Sonogashira coupling reactions and 4‐nitroaniline reduction under ultrasound irradiation

Applied Organometallic Chemistry, Aug 29, 2022

An easy and environmentally friendly method has been developed for locust bean gum extraction fro... more An easy and environmentally friendly method has been developed for locust bean gum extraction from carob seeds to be used as natural support of palladium. The reaction was carried out in water under ultrasonic irradiation for a short period of time (30 min). This catalyst was characterized by different analytical techniques such as ultraviolet–visible (UV‐vis), Fourier transform infrared (FTIR), thermogravimetric analysis (TGA), scanning electron microscopy/energy dispersive X‐ray spectroscopy (SEM/EDX), elemental mapping analysis, and X‐ray diffraction (XRD). The catalytic activity of Pd supported by locust bean gum was studied in Heck and Sonogashira cross‐coupling reactions in different conditions under ultrasonic irradiation. Likewise, it was examined as green catalyst of 4‐nitroaniline reduction at room temperature in water. The reusability of the catalyst was verified for five consecutive cycles, where excellent yields were obtained.