A facile and cost‐effective method for crystalline cellulose extraction from sugarcane bagasse applied to remove crystal violet dye from solution DOI
Le Vinh Phong,

Ho Dang Tien,

Khương Quoc Võ

et al.

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

Published: Dec. 13, 2024

Abstract In this work, crystalline cellulose (CC) was extracted from sugarcane bagasse through a facile modification method and further applied to absorb crystal violet dye (CV) in aqueous media. The proposed approach uses mixture of NaOH H 2 O only two‐step extraction process. This is more straightforward than previous methods, which used complex mixtures solvents additives. yield obtained 76.90%, approximately higher several works declared before. as‐prepared product then determined with Fourier transform infrared spectroscopy (FT‐IR) X‐ray diffraction (XRD) analyze the presence functional groups crystallinity, respectively. Furthermore, surface morphology, specific area 0.634 m g −1 , pore diameters 3.010 nm, size distribution CC were scanning electron microscope (SEM) Brunauer–Emmett–Teller (BET) methods nitrogen adsorption–desorption isotherm, Additionally, serial experiments conducted investigate influence pH on CV removal results showed that material had wide operating range 6.0–9.0 exhibited highest treatment ability at 7.0. Besides, effect parameters abilities, such as contact time (1–90 min), adsorbent dose (0.01–0.5 g), initial concentration (10–100 mg L ), also investigated. To evaluate extract media propose suitable adsorption mechanism, we isotherms kinetic models, Langmuir, Freundlich, Temkin, Elovich. followed pseudo‐second‐order model. Moreover, according Langmuir isotherm model, maximum capacity ( q ) 8.857 . Thermodynamic −20 < Δ G 0 (kJ mol 29.500 kJ positive S proved process physical adsorption, spontaneous endothermic. Overall, study offers simple based acid hydrolysis for high‐value utilization isolate CC. could become an active removing solutions.

Language: Английский

Preparation polymer-grafted magnetic starch adsorption material St/Fe3O4-g-p(GMA-r-HEMA) used for removal of heavy metals DOI
Chengmin Hou,

Weimin Yan,

Hanxiao Ma

et al.

Colloids and Surfaces A Physicochemical and Engineering Aspects, Journal Year: 2024, Volume and Issue: 685, P. 133255 - 133255

Published: Jan. 21, 2024

Language: Английский

Citations

15
Response surface methodology for the design of malachite green dye removal by γ-Fe2O3 dispersed on reduced graphene oxide sheets DOI Creative Commons
Zhu Liu, Amrita Kumar Sana, Muhammad Tahir ul Qamar

et al.

Scientific Reports, Journal Year: 2025, Volume and Issue: 15(1)

Published: Feb. 5, 2025

A nanocomposite composed of rGO and γ-Fe2O3 was prepared using ultrasonication for the adsorption malachite green (MG) dye. The preferential plane diffractions at 2θ values 35.54° 26.45° about (311) (002) with 19.85 20.92 nm crystallite sizes, respectively confirmed successful formation nature adsorbent. Moreover, XPS FTIR results also composite due to existence peaks relevant composite's components. adsorbent's surface charge (pHPZC = ~ 7.1) estimated salt addition technique. To minimize experiments optimize parameters removal MG by 25 °C, central design (CCD) response methodology (RSM) used. optimal obtained from within-range numerical optimization based on 0.923 Derringer's desirability function were 200 mg/100 mL dose, 80 ppm dye solution, 7.99 pH 112.68 min. contact time 90% 40.64 mg/g capacity (qm) rGO/γ-Fe2O3. However, 98% 64.26 achieved upon extended-range estimation parameters. data exhibited best co-relationship Freundlich isotherm pseudo-2nd order kinetic model. According a thermodynamic analysis, process rGO/γ-Fe2O3 is exothermic, spontaneous, less random. thermal stability, desorption, regeneration reusability explored. Finally, this study shows that RSM can be an excellent technique industrial scale.

Language: Английский

Citations

1
Development of moringa seed powder-modified slag geopolymers for enhanced mechanical properties and effective dye removal DOI Creative Commons

soher hashish,

Essam Kishar,

Doaa Ahmed

et al.

Scientific Reports, Journal Year: 2025, Volume and Issue: 15(1)

Published: March 15, 2025

Abstract Crystal violet (CV), a widely used dye in paints and textiles, poses significant environmental threat due to its non-biodegradable nature. A modified slag-based geopolymer has been developed address this issue by incorporating raw moringa seed powder (MSP), an agricultural waste. The geopolymers (SM1, SM2, SM3) were created adding different percentages of MSP (0.2%, 0.6%, 1% weight) ground granulated blast furnace slag (GGBFS), using sodium silicate 10 M hydroxide as alkali activators. This combination enhances the geopolymer’s mechanical adsorbent properties, making it more effective for CV removal. composites analyzed X-ray diffraction (XRD), Fourier-transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM). Their properties evaluated conducting compressive strength total porosity tests. Pore structure analysis was performed nitrogen adsorption desorption techniques, point zero charges determined. Additionally, batch experiments carried out investigate dye, employing two isotherm models kinetic analysis. SM1 mix, which is containing 0.2% MSP, exhibited highest at 73 MPa after 180 days, representing 25.8% improvement compared control mix (100% slag). Furthermore, mixes showed greater activity toward crystal with SM3 achieving capacity up 322.58 mg/g. study demonstrates that capacity. indicates positive impact on composite’s surface highlights benefits utilizing industrial waste wastewater treatment.

Language: Английский

Citations

1
Magnetic biochar as a revolutionizing approach for diverse dye pollutants elimination: A comprehensive review DOI

Elaheh Hashemi,

Mohammad-Mahdi Norouzi,

Mousa Sadeghi‐Kiakhani

et al.

Environmental Research, Journal Year: 2024, Volume and Issue: 261, P. 119548 - 119548

Published: July 6, 2024

Language: Английский

Citations

5
Synthesis of composites from coal gasification slag by acid leaching and NaOH activation for efficient adsorption of methylene blue DOI

Zhaojing Li,

Yaoping Chen,

D Wang

et al.

Applied Surface Science, Journal Year: 2024, Volume and Issue: 679, P. 161186 - 161186

Published: Sept. 7, 2024

Language: Английский

Citations

5
Molecular Insights into Crystal Violet Removal Using Natural Clay: A Statistical Physics and PSD/AED Analysis Within the Grand Canonical Ensemble Framework DOI

A. Naifar,

Kods Oueslati, Fatma Aouaini

et al.

Chemistry Africa, Journal Year: 2025, Volume and Issue: unknown

Published: March 16, 2025

Language: Английский

Citations

0
Production of sustainable hydrogels from poly(ethylene terephthalate) chemical recycling products with adsorption capacity for cationic crystal violet dye DOI

Daniela Eduarda Schneider,

Tomás M. Simioni, Bibiana Bitelo

et al.

Journal of Molecular Liquids, Journal Year: 2025, Volume and Issue: unknown, P. 127469 - 127469

Published: March 1, 2025

Language: Английский

Citations

0
Utilization of Phosphogypsum as Sustainable Adsorbent for Removal of Crystal Violet Dye from Wastewater: Kinetics, Thermodynamics, and Applications in Textile Effluent Treatment DOI Open Access
Ahmad Al‐Otaibi,

Abdulrahman A. Aljabbab,

Mamdoh Alajmi

et al.

Sustainability, Journal Year: 2025, Volume and Issue: 17(8), P. 3320 - 3320

Published: April 8, 2025

This study examines the potential of phosphogypsum—a by-product phosphoric acid production process—as a low-cost and sustainable adsorbent for removal crystal violet dye from aqueous solutions. Phosphogypsum was characterized using X-ray fluorescence, diffraction, particle size distribution, zeta measurements, revealing that it is primarily composed di-hydrate calcium sulfate, with negatively charged surface in pH range 1.8 to 8.2 mean 12.2 microns. Experiments were conducted evaluate effects pH, dose, contact time, temperature on its adsorption ability. The results indicated capacity increased up value 5, while higher initial concentrations enhanced uptake but reduced efficiency. process well described by Langmuir isotherm, suggesting chemisorption as dominant mechanism, pseudo-second-order kinetic model occurred exterior surface. thermodynamic analysis revealed exothermic spontaneous at 20 °C 30 °C, decrease favorability temperatures. demonstrated reusability, efficiency 71% after five regeneration cycles. Furthermore, phosphogypsum successfully applied treat real textile effluent, achieving significant reductions both biochemical oxygen demand (71%) content (87%). These findings highlight an effective eco-friendly wastewater treatment, contributing waste valorization environmental sustainability.

Language: Английский

Citations

0
Development of a schiff base-chitosan-vanillin/hydroxyapatite composite for effective brilliant green dye removal: Characterization, adsorption modeling, and cost analysis DOI
Ahmed Saud Abdulhameed, Samaa Abdullah,

Abeer A. Altamimi

et al.

International Journal of Biological Macromolecules, Journal Year: 2025, Volume and Issue: unknown, P. 143140 - 143140

Published: April 1, 2025

Language: Английский

Citations

0
Superior adsorption performance of high temperature solvothermal synthesized zirconium metal-organic framework nanoparticles in dye removal DOI Creative Commons
Nergiz Kanmaz

Ömer Halisdemir Üniversitesi Mühendislik Bilimleri Dergisi, Journal Year: 2025, Volume and Issue: 14(2), P. 473 - 481

Published: April 15, 2025

In the present study, a zirconium-based metal-organic framework (UiO-66) nanoparticle was synthesized by solvothermal technique and characterized FT-IR, XRD, SEM, BET analyses zeta potential measurements. The effectiveness of UiO-66 nanoparticles for crystal violet (CV) adsorption examined. CV removal process reached equilibrium in 30 min system consistent with pseudo-second-order model, which involves chemical reactions. results were compatible Dubinin-Raduskevich isotherm model. maximum monolayer capacity calculated as 998.18 mg g−1. It deduced that rate low when solution pH acidic, surface charge dominant adsorption. thermodynamic analysis, is exothermic spontaneous. reusability investigated 80.04% obtained even after 5 successful cycles. According to results, have promising rapid efficient dye.

Language: Английский

Citations

0