Environmental impacts and remediation of dye-containing wastewater

Nature Reviews Earth & Environment, Год журнала: 2023, Номер 4(11), С. 785 - 803

Опубликована: Окт. 26, 2023

Язык: Английский

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Jujube stones based highly efficient activated carbon for methylene blue adsorption: Kinetics and isotherms modeling, thermodynamics and mechanism study, optimization via response surface methodology and machine learning approaches

Process Safety and Environmental Protection, Год журнала: 2022, Номер 170, С. 513 - 535

Опубликована: Дек. 14, 2022

Язык: Английский

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Hybrid multifunctional biocomposite of chitosan grafted benzaldehyde/montmorillonite/algae for effective removal of brilliant green and reactive blue 19 dyes: Optimization and adsorption mechanism

Journal of Cleaner Production, Год журнала: 2023, Номер 393, С. 136334 - 136334

Опубликована: Фев. 4, 2023

Язык: Английский

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Efficient removal of noxious methylene blue and crystal violet dyes at neutral conditions by reusable montmorillonite/NiFe2O4@amine-functionalized chitosan composite

Scientific Reports, Год журнала: 2022, Номер 12(1)

Опубликована: Сен. 15, 2022

Abstract The jeopardy of the synthetic dyes effluents on human health and environment has swiftly aggravated, threatening survival. Hence, sustained studies have figured out most acceptable way to eliminate this poisonous contaminant. Thereby, our investigation aimed fabricate montmorillonite/magnetic NiFe 2 O 4 @amine-functionalized chitosan (MMT-mAmCs) composite as a promising green adsorbent remove cationic methylene blue (MB) crystal violet (CV) from wastewater in neutral conditions. Interestingly, MMT-mAmCs carries high negative charges at wide pH range 11 clarified zeta potential measurements, asserting its suitability adsorb contaminants. In addition, experimental study confirmed that optimum both MB CV was 7, inferring ability simple process Furthermore, ferromagnetic behavior is additional merit provides facile, fast, flawless separation. Notably, as-fabricated revealed an auspicious adsorbability towards adsorptive removal CV, since maximum adsorption capacity were 137 118 mg/g, respectively. Moreover, isotherm kinetic investigatins depicted fitted Langmuir Pseudo 2nd order models, Besides, advanced preserved satisfactory characteristics with maximal efficacy exceeding 87% after reuse for ten consecutive cycles. More importantly, efficiently adsorbed real agricultural water, Nile river water samples medium, reflecting potentiality be superb reusable candidate pollutants their aquatic media.

Язык: Английский

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Efficient photocatalysis of Cu doped TiO2/g-C3N4 for the photodegradation of methylene blue

Arabian Journal of Chemistry, Год журнала: 2023, Номер 16(6), С. 104749 - 104749

Опубликована: Март 6, 2023

The release of dyes into normal water reservoirs has become a tremendous environmental problem and the development methods to remove such is essential. A novel photocatalyst was fabricated in which Cu doped TiO2 coupled with g-C3N4 (Cu-TiO2/g-C3N4) different weight percentages as 10, 30 50%, hydrothermally. Pure consisted both Anatase Rutile phases where slight lattice distortions were observed Cu-doped evidenced by XRD Raman analysis. present at 1.7% respective according XRF Spherical irregularly shaped aggregated nanoparticles range 15–55 nm heterogeneously distributed on matrix TEM SEM. band gap (3.0 eV) reduced 2.67 upon doping Cu. found be 2.81 eV that Cu-TiO2/g-C3N4 2.82 2.88 eV. Synthesized photocatalysts tested ability degrade methylene blue under UV Visible light. Cu-TiO2/50% showed highest rate constant (4.4 × 10-3 min−1) 5 9.8 times greater than g-C3N4, respectively. decreased introduction EDTA Isopropyl alcohol they scavenge holes hydroxyl radicals, photocatalytic activity all nanomaterials increased increasing concentration persulfate due SO4●- OH● produced. effectively adsorb dark conditions following pseudo-second-order kinetics suggesting molecules chemisorbed adsorbents. adsorption resulting best-performing 0.122 g mg−1 min−1. Hence, it evident can blue.

Язык: Английский

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An effective-green strategy of methylene blue adsorption: Sustainable and low-cost waste cinnamon bark biomass enhanced via MnO2

Journal of environmental chemical engineering, Год журнала: 2023, Номер 11(3), С. 110254 - 110254

Опубликована: Июнь 1, 2023

Язык: Английский

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Green Organo-Photooxidative Method for the Degradation of Methylene Blue Dye

ACS Omega, Год журнала: 2024, Номер 9(10), С. 12069 - 12083

Опубликована: Фев. 28, 2024

This study used an organophoto-oxidative material to degrade the toxic azo dye, methylene blue (MB), due its hazardous effects on aquatic life and humans. MB is traditionally degraded using metal-based catalysts, resulting in high costs. Several organic acids were screened for organo-photooxidative applications against various dyes, ascorbic acid (AA), also known as vitamin C, was found be best degradation photooxidative activity. It eco-friendly, edible, efficient material. A photocatalytic box has been developed of that when AA added, efficiency increased from 42 95% within 240 min. Different characterization techniques, such HPLC GC-MS, after structural elucidation products. DFT done investigation mechanistic behind process. statistical tool, RSM, optimization parameters (concentration catalyst, time). develops sustainable effective solutions wastewater treatment.

Язык: Английский

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Rapid degradation of anionic azo dye from water using visible light-enabled binary metal-organic framework

Journal of Water Process Engineering, Год журнала: 2024, Номер 64, С. 105686 - 105686

Опубликована: Июнь 25, 2024

Язык: Английский

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Novel S-scheme derived Mo-Bi2WO6/WO3/Biochar composite for photocatalytic removal of Methylene Blue dye

Journal of Physics and Chemistry of Solids, Год журнала: 2024, Номер unknown, С. 112385 - 112385

Опубликована: Окт. 1, 2024

Язык: Английский

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Chitosan/functionalized fruit stones as a highly efficient adsorbent biomaterial for adsorption of brilliant green dye: Comprehensive characterization and statistical optimization

International Journal of Biological Macromolecules, Год журнала: 2024, Номер 263, С. 130465 - 130465

Опубликована: Фев. 27, 2024

Язык: Английский

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