A Sustainable Solution for the Adsorption of C.I. Direct Black 80, an Azoic Textile Dye with Plant Stems: Zygophyllum gaetulum in an Aqueous Solution DOI Creative Commons

Chaimaa Haoufazane,

Fatima Zaaboul,

Hanae El Monfalouti

et al.

Molecules, Journal Year: 2024, Volume and Issue: 29(20), P. 4806 - 4806

Published: Oct. 11, 2024

The presence of pollutants in water sources, particularly dyes coming by way the textile industry, represents a major challenge with far-reaching environmental consequences, including increased scarcity. This phenomenon endangers health living organisms and natural system. Numerous biosorbents have been utilized for removal from industry. aim this study was to optimize discarded Zygophyllum gaetulum stems as constituting an untreated biosorbent efficient C.I. Direct Black 80, azo dye, aqueous solution, thus offering ecological low-cost alternative while recovering waste reuse. subjected series characterization analyses: scanning electron microscopy (SEM), thermogravimetric analysis (TGA), Brunauer–Emmett–Teller (BET) method, X-ray diffraction (XRD), infrared spectroscopy (IR) were employed characterize biosorbent. Additionally, moisture ash content plant stem also examined. absorption studied several different parameters effect time (0 360 min), sorbent mass (3 40 g/L), pH solution 11), dye concentration (5 300 mg/L), zero-charge point (2–12). Thermodynamic studies desorption carried out. results showed that increase 3 g/L resulted notable enhancement adsorption rates, observed rise 63.96% 97.08%. at (pHpzc) determined be 7.12. percentage found highest values ≤ 7, subsequent decline efficiency increased. Following initial amount adsorbed equilibrium reached within 2 h contact. kinetic investigated using pseudo-first-order, pseudo-second-order Elovich models. indicated pseudo-first-order model most appropriate adsorbent. isotherm Langmuir, Frendlich, Temkin, Dubinin–Radushkevich experimental data more satisfactory better fitted Langmuir on plant. demonstrated could effective adsorbent our organic solution.

Language: Английский

Fluoro-hydroxyapatite/chitosan composites as an eco-friendly adsorbent for direct red 23 dye removal: Optimization through response surface methodology DOI Creative Commons
Aghilas Brahmi, Maissa Agsοus, Bachir Nadir Benkhaoula

et al.

Journal of Molecular Structure, Journal Year: 2024, Volume and Issue: 1321, P. 140212 - 140212

Published: Sept. 27, 2024

Language: Английский

Citations

5
Batch and continuous adsorptive removal of brilliant green dye using modified jamun seed powder: RSM based optimization DOI

V. Vandhana Devi,

R. Lakshmipathy,

Venkatesa Prabhu Sundramurthy

et al.

Chemical Engineering Communications, Journal Year: 2024, Volume and Issue: unknown, P. 1 - 14

Published: Oct. 3, 2024

Language: Английский

Citations

2
Dynamic Adsorption of a Cationic Dye onto Wool Fibers as Column-Filling Media: Response Surface Optimization and Fixed-Bed Adsorption Modeling DOI Open Access
Bogdan-Constantin Condurache, Corneliu Cojocaru, Alexandra Bargan

et al.

Materials, Journal Year: 2024, Volume and Issue: 17(4), P. 790 - 790

Published: Feb. 6, 2024

This study reports a simple and low-cost method for water purification using recyclable natural fibers (coarse wool fibers) as column-filling media adsorption in the dynamic mode. As an instance of dissolved organic pollutant, cationic dye (basic blue 9, BB9) was assayed. According to Langmuir isotherm (recorded at 300 K), calculated maximum capacity fibrous material found be 24.86 mg/g retention BB9. Response surface methodology (RSM) employed design experiments model-based optimization process performed regime (fixed-bed column). The optimal conditions provided by RSM indicated adsorbent column height

Language: Английский

Citations

1
Furfuryl-pyridinium-functionalization of flaxseed gum for effective methylene blue removal from aqueous solution DOI
Deysi J. Venegas-García, Mariam Mir, Bernd G. K. Steiger

et al.

Canadian Journal of Chemistry, Journal Year: 2024, Volume and Issue: unknown

Published: May 8, 2024

This study describes the modification of flaxseed gum (FSG) via furfural to obtain a furfuryl-pyridinium modified adsorbent (Flax-Py) with improved adsorption characteristics towards methylene blue (MB) versus results obtained for unmodified FSG. Materials characterization was achieved complementary spectral methods (NMR, X-ray photoelectron spectroscopy, FT-IR, Raman, and XRD) as well thermogravimetric analysis (TGA) ζ-potential measurements. Synthetic FSG yield Flax-Py that led enriched N-content (2.75 atom-% vs. 0.76 FSG), conversion furfuryl pyridinium incomplete (∼50%), where both moieties were identified. The isotherms at pH 7 showed possessed favorably high MB capacity (∼540 mg/g), while notably lower (167 mg/g). facilitated 100% removal low dye concentrations (1–10 mg/L) 50% bioadsorbent. Further, moderate loss (∼12%–16% removal) after five regeneration cycles. revealed settling (time, density, gelation, solubility) facilitate enhanced phase separation fractions by circumventing need centrifugation. mechanism attributed primarily H-bonding effects secondary contributions due electrostatic interactions (negative above 4.2). successfully an attaining nearly quantitative environmentally relevant (<15 mg/L).

Language: Английский

Citations

1
Preparation of Nano-Magnetic Saccharomyces Cerevisiae Photocatalyst (Cofe2o4-By) by Physical Immobilization for Sono-Assisted Photo-Fenton Removal of Cationic Dye: Response Surface Methodology Study DOI
Rabia Aziz, Rafia Aziz

Published: Jan. 1, 2024

In this study, the surface of Saccharomyces cerevisiae cells (baker's yeast) was modified by CoFe2O4 through a physical immobilization method (CF-BY) and evaluated for photo-degradation methylene blue dye (MB) using response methodology (RSM). Morphological characterization CF-BY bionanocomposite conducted SEM, FTIR, XRD, techniques. The XRD results indicated that pure nano-CoFe2O4 (CF) possesses cubic spinel crystalline structure with an average crystallite size 19nm. Surface modification BY CF confirmed SEM analysis before after modification. Subsequently, applied sono-assisted photo-Fenton removal (MB). Under optimal conditions (20mg/L initial concentration, 0.02g dosage, 120 min photo-duration, pH 4.5) displayed remarkable 99.5% photocatalytic activity.

Language: Английский

Citations

1
A Sustainable Solution for the Adsorption of C.I. Direct Black 80, an Azoic Textile Dye with Plant Stems: Zygophyllum gaetulum in an Aqueous Solution DOI Creative Commons

Chaimaa Haoufazane,

Fatima Zaaboul,

Hanae El Monfalouti

et al.

Molecules, Journal Year: 2024, Volume and Issue: 29(20), P. 4806 - 4806

Published: Oct. 11, 2024

The presence of pollutants in water sources, particularly dyes coming by way the textile industry, represents a major challenge with far-reaching environmental consequences, including increased scarcity. This phenomenon endangers health living organisms and natural system. Numerous biosorbents have been utilized for removal from industry. aim this study was to optimize discarded Zygophyllum gaetulum stems as constituting an untreated biosorbent efficient C.I. Direct Black 80, azo dye, aqueous solution, thus offering ecological low-cost alternative while recovering waste reuse. subjected series characterization analyses: scanning electron microscopy (SEM), thermogravimetric analysis (TGA), Brunauer–Emmett–Teller (BET) method, X-ray diffraction (XRD), infrared spectroscopy (IR) were employed characterize biosorbent. Additionally, moisture ash content plant stem also examined. absorption studied several different parameters effect time (0 360 min), sorbent mass (3 40 g/L), pH solution 11), dye concentration (5 300 mg/L), zero-charge point (2–12). Thermodynamic studies desorption carried out. results showed that increase 3 g/L resulted notable enhancement adsorption rates, observed rise 63.96% 97.08%. at (pHpzc) determined be 7.12. percentage found highest values ≤ 7, subsequent decline efficiency increased. Following initial amount adsorbed equilibrium reached within 2 h contact. kinetic investigated using pseudo-first-order, pseudo-second-order Elovich models. indicated pseudo-first-order model most appropriate adsorbent. isotherm Langmuir, Frendlich, Temkin, Dubinin–Radushkevich experimental data more satisfactory better fitted Langmuir on plant. demonstrated could effective adsorbent our organic solution.

Language: Английский

Citations

1