Response surface methodology for dyes removal by adsorption onto alginate calcium

Trifi, Ikhlass Marzouk; Trifi, Beyram; Souissi, Emna; Hamrouni, Béchir

doi:10.1080/09593330.2019.1612470

Cited by 16 publications

(6 citation statements)

References 32 publications

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“…One of the most common procedures in the laboratory is staining, which enhances a contrast in samples at a microscopic level. While useful in scientific and medical studies, dyes can cause toxic interactions inside a living cell of human skin, causing harmful mutations [ 1 ]. Combined with a considerable amount of water during a series of washing, dyes can also be a source of water waste [ 2 ].…”

Section: Introductionmentioning

confidence: 99%

Photodegradation of Biohazardous Dye Brilliant Blue R Using Organometallic Silver Nanoparticles Synthesized through a Green Chemistry Method

Sidorowicz

Szymański

Rybka

2021

Biology

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Nowadays, nanostructures having tremendous chemical and physical properties are gaining attention in the biomedical industry. However, when they are prepared through classical methods (physical and chemical), they are often non-biocompatible and toxic. Considering the mentioned factors, in this research, organometallic silver nanostructures (OMAgNs) have been prepared by the green chemistry method using the acetone, methanol, and methanol-hexane-based extracts of the medicinally important plant Cichorium intybus. Secondary metabolites from C. intybus can be used as an alternative to synthetic reagents at an industrial scale to manufacture biosafe and economical nanostructures with enhanced physicochemical parameters. Prepared nanostructures were characterized using SEM, XRD, FTIR, TGA, UV, and zeta potential measurement. SEM analysis revealed different shapes of OMAgNs, prepared with various extracts. XRD analysis showed the crystallinity of the nanostructures. FTIR spectroscopy helped to identify groups of compounds present in the extracts and used for the OMAgNs synthesis. Out of the three tested OMAgNs, those prepared with methanol extract were selected due to the highest obtained yield and stability (highest negative zeta potential) and were tested as a cost-efficient and active agent to photodegrade organic pollutant, Brilliant Blue R, using energy from sunlight. A decrease in UV-VIS absorbance confirmed the rapid degradation of the dye.

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Section: Introductionmentioning

confidence: 99%

Photodegradation of Biohazardous Dye Brilliant Blue R Using Organometallic Silver Nanoparticles Synthesized through a Green Chemistry Method

Sidorowicz

Szymański

Rybka

2021

Biology

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“…It allows estimating the effects of experimental factors and their interactions with a relatively low cost and a reduced number of experiments. [45][46][47] The full factorial design consists of N experiments with N = 2 k , where k is the number of factors. The influence of three factors (electrode-solution distance, applied voltage, and the initial concentration of levofloxacin) and their interactions were studied.…”

Section: Influence Of Operating Parametersmentioning

confidence: 99%

Gliding arc plasma treatment of levofloxacin using experimental design approach

Trifi¹,

Trifi

Kouass³

et al. 2023

CLEAN Soil Air Water

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The degradation of levofloxacin, a pharmaceutical pollutant model has been studied by gliding arc plasma (Glidarc). In this work, a full factorial design was applied to investigate the influence of the operating parameters and their interactions on the degradation yield. This experimental design demonstrates that the electrode-solution distance is the most influential factor followed by the concentration of levofloxacin and the applied voltage. Response surface methodology using Doehlert design was adopted to predict the optimal conditions of the plasma treatment. Results showed that for an applied voltage of 7.2 kV, an electrode-solution distance of 2.7 cm, and an initial concentration of 45.6 mg L −1 , the degradation yield reached 52.81 ± 1.19% after 90 min of plasma treatment, which corresponds to an energy yield of 40.1 mg kW −1 h −1 .In addition, to develop a cost-effective system for the degradation of pharmaceutical pollutants, biodegradability of the plasma pretreated solutions was evaluated. Resultsshowed that a readily biodegradable solution was obtained after only 30 min of plasma pretreatment. Hence, the feasibility and the efficiency of coupling plasma to biodegradation processes were confirmed. Moreover, coupling plasma to photocatalysis was carried out and results showed that 45 min of plasma treatment followed by 40 min of photocatalytic treatment achieved 100% degradation that neither the plasma process nor the photocatalysis process can reach alone.

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“…Extracted from brown seaweeds, AL is a natural polysaccharide characterized by its linear structure, comprising ⊎-D-mannuronate and ⊍-L-guluronate linked by ⊎-1,4 and ⊍-1,4 glycosidic bonds. 43,44 AL gel exhibits a soft and soluble nature in alkaline solutions. It reacts irreversibly with multivalent cations (except magnesium) to form cross-linking bonds, resulting in a thermally irreversible gel.…”

Section: Introductionmentioning

confidence: 99%

One‐pot green approach for rapid and effective anionic dye remediation: encapsulation within alginate nanocapsules

Alver,

Doğan,

Mert

et al. 2024

J of Chemical Tech & Biotech

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BACKGROUNDThe encapsulation technique was applied to efficiently eliminate the Congo red (CR) from aqueous solutions. During the ionotropic gelation between Ca2+ ions and alginate (AL), CR was effectively entrapped within the AL nanocapsules in a one‐step process. Suitable conditions for efficient CR removal via encapsulation were revealed by the systematic optimization of parameters including pH, time, rpm, etc.ResultsAccording to the experimental observations, the stirring rate and temperature were found to have an insignificant effect on the encapsulation of CR molecules. When the pH value of the medium was 3, the highest level of encapsulation efficiency was achieved in a period of 15 min. At a preliminary CR concentration of 2000 mg/L and a pH value of 3, the encapsulation efficiency was calculated to be about 98.9%, with an encapsulation capacity of 2800 mg dye/g AL. The zeta potential values of AL and CR/AL nanocapsules were determined to be +7.05 eV and ‐14.9 eV and the results showed that the particles tended to agglomerate. TEM micrographs also showed that the nanopasscules were nanosized and agglomerated. Soil and UV degradation studies showed that the dye‐entrapped nanocapsules were noted to degrade remarkably. These results seriously highlighted the potential of encapsulation for dye removal in terms of the economical and practical applications.ConclusionEncapsulation was confirmed to be an economical and practical technique for effectively eliminating Congo red from aqueous solutions. Under UV light irradiation, the dye molecules entrapped within alginate nanocapsules displayed photodegradation.This article is protected by copyright. All rights reserved.

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Response surface methodology for dyes removal by adsorption onto alginate calcium

Cited by 16 publications

References 32 publications

Photodegradation of Biohazardous Dye Brilliant Blue R Using Organometallic Silver Nanoparticles Synthesized through a Green Chemistry Method

Photodegradation of Biohazardous Dye Brilliant Blue R Using Organometallic Silver Nanoparticles Synthesized through a Green Chemistry Method

Gliding arc plasma treatment of levofloxacin using experimental design approach

One‐pot green approach for rapid and effective anionic dye remediation: encapsulation within alginate nanocapsules

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