Improved Stability of Starch@Layered-Materials Composite Films for Methylene Blue Dye Adsorption in Aqueous Solution

Mokhtar, Adel; Abdelkrim, Soumia; Zaoui, Farouk; Sassi, Mohamed; Boukoussa, Bouhadjar

doi:10.1007/s10904-020-01536-3

Cited by 32 publications

(9 citation statements)

References 12 publications

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“…We can observe the peaks of sebacoyl chloride as well as those of citric acid. First of all, we have a singlet at 1.30 ppm, which corresponds to the protons of CH 2 in the aliphatic chain of positions (4-5-6-7), and the multiplet at 1.60 ppm is assigned to CH 2 of positions (3-8); at 2.29 ppm, we have a triplet that corresponds to the CH 2 of positions (2)(3)(4)(5)(6)(7)(8)(9). We also have a quadruplet at 2.6 and 2.9 ppm of the CH 2 protons of citric acid (a, b) as AB system.…”

Section: H Nmr/ftir Studymentioning

confidence: 99%

“…Water is one of the most precious natural resources on the planet for all living creatures; therefore, its pollution is a very serious topic that worries several research groups 1 . The decontamination of water polluted by organic pollutants like dyes considered to be toxic, synthetic, and very stable molecules is a very complex process 2,3 . Different techniques have already been put in place to eliminate these pollutants such as coagulation, membrane treatment, adsorption, advanced oxidation process, and biological treatment 4 .…”

Section: Introductionmentioning

confidence: 99%

“…1 The decontamination of water polluted by organic pollutants like dyes considered to be toxic, synthetic, and very stable molecules is a very complex process. 2,3 Different techniques have already been put in place to eliminate these pollutants such as coagulation, membrane treatment, adsorption, advanced oxidation process, and biological treatment. 4 Among these techniques, the catalytic reduction by NabH 4 is one of the most popular techniques due to its simplicity, low cost, and especially its efficiency.…”

Section: Introductionmentioning

confidence: 99%

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Classical and ultrasonic preparation of new dendrimer–Copper nanocomposites: Application in the catalytic reduction, antioxidant, and antimicrobial activities

Zaoui

Daouadji

Beldjilali

et al. 2023

Applied Organom Chemis

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A new dendrimer based on citric acid and sebacoyl chloride was synthesized by Steglich esterification. The obtained dendrimer was used as a matrix for the dispersion of copper nanoparticles using classical and ultrasound methods. All materials were characterized by FTIR, 1H NMR, thermogravimetric analysis, X-ray photoelectron spectrometry, scanning electron microscopy, and energ-ydispersive -X-ray spectroscopy. The obtained nanocomposites were tested against two Gram-positive pathogenic bacteria (Bacillus cereus and Staphylococcus aureus), two Gram negative (Escherichia coli and Pseudomonas aeruginosa), the organic dye methylene blue, and in the 1,1-diphenyl-2-picrylhydrazile radical scavenging assay. A comparative study between both methods in structural, morphological, and thermal properties as well as in the antimicrobial, antioxidant, and catalytic reduction activities was provided. All nanocomposites showed an excellent activity for all applications. The comparison between both synthesis methods shows the superiority of the sonication methods, especially via the catalytic reduction and the antioxidant activities, the classic method allows better thermal stability and a higher metal content with some cationic oxidation state in the obtained nanocomposites, but ultrasound allows a better dispersion with a fully reduced metal.

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Section: H Nmr/ftir Studymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Classical and ultrasonic preparation of new dendrimer–Copper nanocomposites: Application in the catalytic reduction, antioxidant, and antimicrobial activities

Zaoui

Daouadji

Beldjilali

et al. 2023

Applied Organom Chemis

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“…Pesticides, herbicides, drugs, heavy metals, and dyes are among the essential contaminants which are discharged from numerous industries such as pharmaceutics, cosmetics, plastics industry, textiles, food industry, etc. [2][3][4][5][6][7][8][9][10][11][12][13].…”

Section: Introductionmentioning

confidence: 99%

Cationic dye removal using Pergularia tomentosa L. fruit: kinetics and isotherm characteristics using classical and advanced models

Belmabrouk¹,

Selmi²,

Alshahrani³

et al. 2022

Comptes Rendus. Chimie

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“…In general, nano-sized materials exhibited high specific surface area, tailorable structure, thermal stability, high chemical and mechanical resistance, and easiness in functionalization. As a subgroup of inorganic layered nanomaterials, layered double hydroxides (LDHs) are ionic lamellar mixed hydroxides that consisted of positively charged main layers and an interlayer region with chargecompensating anions undergoing anion-exchange chemistry [16,17]. They are generally demonstrated with a stoichiometry of [M 1−x 2+ M x 3+ (OH) 2 ] x+ (A n− ) x n ⁄ .…”

Section: Introductionmentioning

confidence: 99%

Itaconic acid-modified layered double hydroxide as a ‎novel adsorbent for effective removal of Congo red from aqueous solutions

Dinari¹,

Shabani²

2021

Preprint

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Herein, we report the synthesis of Cu-Ca-Al/NO3-based layered double hydroxide through co-precipitation methodology. The prepared layered double hydroxide was then modified with itaconic acid. The physicochemical properties of the prepared materials were studied using Fourier transform-infrared spectroscopy, scanning electron microscopy, X-ray diffraction analysis, thermogravimetric analysis, and nitrogen adsorption/desorption technique. The prepared materials were then applied as novel adsorbents for the removal of Congo red as a model of an anionic dye from aqueous media. To reach maximum adsorption, the effect of parameters including sample solution pH, adsorbent amount, contact time, and initial concentration of Congo red on the adsorption process was investigated. Kinetic studies were also conducted to study the mechanism of adsorption. In this regard, the kinetic models of pseudo-first-order, pseudo-second-order, Elovich, and intra-particle diffusion were studied. The results showed that the adsorption of Congo red onto Cu-Ca-Al-LDH and LDH-ITA adsorbents followed the pseudo-second-order kinetic model. To evaluate the equilibrium adsorption data, different isotherms including Langmuir, Freundlich, and Dubinin-Radushkevich were also applied. The data revealed that the Freundlich isotherm provided the best fit with the equilibrium data of both adsorbents. Maximum adsorption capacities of 81 and 84 mg g− 1 were obtained using Cu-Ca-Al-LDH and LDH-ITA adsorbents, respectively.

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Improved Stability of Starch@Layered-Materials Composite Films for Methylene Blue Dye Adsorption in Aqueous Solution

Cited by 32 publications

References 12 publications

Classical and ultrasonic preparation of new dendrimer–Copper nanocomposites: Application in the catalytic reduction, antioxidant, and antimicrobial activities

Classical and ultrasonic preparation of new dendrimer–Copper nanocomposites: Application in the catalytic reduction, antioxidant, and antimicrobial activities

Cationic dye removal using Pergularia tomentosa L. fruit: kinetics and isotherm characteristics using classical and advanced models

Itaconic acid-modified layered double hydroxide as a ‎novel adsorbent for effective removal of Congo red from aqueous solutions

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