Adsorption of methylene blue from textile industrial wastewater using activated carbon developed from Rumex abyssinicus plant

Scientific Reports, Journal Year: 2023, Volume and Issue: 13(1)

Published: April 3, 2023

Abstract Methylene blue (MB) is abundantly found in textile industrial effluent which can cause severe health problems for public and environmental ecology. Therefore, this study aimed to remove MB from wastewater using the activated carbon developed Rumex abyssinicus . The adsorbent was chemical thermal methods, then it characterized by SEM, FTIR, BET, XRD, pH zero-point charge (pHpzc). adsorption isotherm kinetics were also investigated. experimental design composed of four factors at three levels (pH (3, 6, 9), initial concentration (100, 150, 200 mg/L), dosage (20, 40, 60 mg/100 mL), contact time min)). interaction evaluated response surface methodology. characterization a have multiple functional groups (FTIR), an amorphous structure (XRD), crack with ups down morphology (SEM), pHpzc 5.03 high BET-specific area 2522 m 2 /g. optimization dye removal carried out Response Surface methodology coupled Box Behnken approach. maximum efficiency 99.9% recorded optimum conditions 9, 100 mg/L, mL, min. Among models, Freundlich model best fit value R 0.99 showing process heterogeneous multilayer whereas revealed that pseudo-second-order 0.88. Finally, quite promising be used level

Language: Английский

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Green synthesis of zinc oxide nanoparticles using Brassica oleracea var. botrytis leaf extract: Photocatalytic, antimicrobial and larvicidal activity

Chemosphere, Journal Year: 2023, Volume and Issue: 323, P. 138263 - 138263

Published: Feb. 27, 2023

Language: Английский

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Recent Advancements in Electrochemical Hydrogen Production via Hybrid Water Splitting

Advanced Materials, Journal Year: 2023, Volume and Issue: 36(4)

Published: Oct. 10, 2023

Abstract As one of the most promising approaches to producing high‐purity hydrogen (H 2 ), electrochemical water splitting powered by renewable energy sources such as solar, wind, and hydroelectric power has attracted considerable interest over past decade. However, electrolysis process is seriously hampered sluggish electrode reaction kinetics, especially four‐electron oxygen evolution at anode side, which induces a high overpotential. Currently, emerging hybrid strategy proposed integrating thermodynamically favorable electro–oxidation reactions with cathode, providing new opportunity for energy–efficient H2 production. To achieve highly efficient cost–effective toward large–scale practical H production, much work been continuously done exploit alternative anodic oxidation cutting–edge electrocatalysts. This review will focus on recent developments production coupled reactions, including choice substrates, investigation electrocatalytic materials, deep understanding underlying mechanisms. Finally, some insights into scientific challenges now standing in way future advancement technique are shared, hope inspiring further innovative efforts this rapidly growing field.

Language: Английский

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Experimental and computational study of metal oxide nanoparticles for the photocatalytic degradation of organic pollutants: a review

RSC Advances, Journal Year: 2023, Volume and Issue: 13(27), P. 18404 - 18442

Published: Jan. 1, 2023

Photocatalysis is a more proficient technique that involves the breakdown or decomposition of different organic contaminants, various dyes, and harmful viruses fungi using UV visible light solar spectrum. Metal oxides are considered promising candidate photocatalysts owing to their low cost, efficiency, simple fabricating method, sufficient availability, environment-friendliness for photocatalytic applications. Among metal oxides, TiO

Language: Английский

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Green synthesis of iron oxide nanoparticles by Taguchi design of experiment method for effective adsorption of methylene blue and methyl orange from textile wastewater

Results in Engineering, Journal Year: 2023, Volume and Issue: 19, P. 101198 - 101198

Published: June 1, 2023

Since the beginning of industrial revolution, uncontrolled discharge wastewater from textile and dyeing industries into water bodies is environmentally challenging to humans ecosystem. Using Cola nitida (CN) leaves extract, Taguchi optimization method was successfully applied achieve green synthesis iron oxide nanoparticles (CN–Fe2O3NPs). Textural properties, nature surface functional groups, crystalline structure morphology CN–Fe2O3NPs were studied. The performance tested for methylene blue (MB) methyl orange (MO) removal wastewater. optimal area 125.31 m2/g achieved using CN extract volume (10 mL), precursor concentration (2 M), contact time (30 min) calcination temperature (600 °C). Overall, had highest effect than other parameters. characterization revealed presence hematite with Fe–O, Fe–O–Fe groups a regular-shaped porous material. Furthermore, adsorption capacity 530.406 527.835 mg/g obtained MB MO within 60 min nanoadsorbent dosage (25 mg/L), initial dye (100 mg/L) (50 reusability stability successful reuse after six cycles without any damage as corroborated by fourier transform infrared (FTIR) spectroscopy. experimental data suitably fitted Langmuir isotherm pseudo-second-order kinetic models denoting chemisorption monolayer process. thermodynamic parameters indicate an endothermic spontaneous Hence, high separation effectiveness against molecules good great potential synthesized in purification.

Language: Английский

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Fe3O4-multiwalled carbon nanotubes-bentonite as adsorbent for removal of methylene blue from aqueous solutions

Chemosphere, Journal Year: 2023, Volume and Issue: 316, P. 137824 - 137824

Published: Jan. 12, 2023

Language: Английский

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Methylene blue adsorption from aqueous solution using activated carbon of spathodea campanulata

Results in Engineering, Journal Year: 2024, Volume and Issue: 21, P. 101910 - 101910

Published: Feb. 10, 2024

This study aimed to determine the effectiveness of Spathodea Campanulata derived activated carbon in removing methylene blue (MB) from wastewater. The was prepared through chemical impregnation with H3PO4 and thermal activation at 500 °C for 2 h. adsorption experiments were optimized using 24 full factorial designs, considering pH, contact time, initial MB concentration, adsorbent dosage as parameters. characterization revealed favorable properties, including multiple surface functional groups, a maximum specific area 1054 m2/g, highly porous morphology. conditions achieved removal efficiency 99.95%, pH 9, time 120 min, dye concentration 90 mg/L, an 0.2 g/100 mL being most effective Freundlich isotherm model provided best fit experimental data, indicating heterogeneous multilayer surface. kinetics indicated that chemisorption primary mechanism. In conclusion, based could serve cost-effective aqueous solutions

Language: Английский

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Advancements in adsorption and photodegradation technologies for Rhodamine B dye wastewater treatment: fundamentals, applications, and future directions

Green Chemical Engineering, Journal Year: 2023, Volume and Issue: 5(4), P. 440 - 460

Published: Dec. 30, 2023

Organic dye pollutants present in wastewater pose a significant global challenge. Among pollutants, the synthetic Rhodamine B (RB) stands out due to its non-biodegradable nature and associated neurotoxic, carcinogenic, respiratory irritant properties. Extensive research has been conducted on efficacy of adsorption photodegradation techniques for removal RB from wastewater. While advanced oxidation processes (AOPs) have gained considerable attention their effectiveness recent years, underlying behaviors mechanisms these technologies remain incompletely understood. Therefore, comprehensive summary progress this domain is imperative clarify basics up-to-date achievements. This review provides an in-depth exploration fundamentals, advancements, future trajectories treatment technologies, mainly encompassing photodegradation. work starts with general introduction outlining sources, toxicity, diverse applicable strategies. Subsequently, it thoroughly examines crucial within non-photochemical, photochemical, such as UV light-assisted AOP, catalyst-assisted ozonation, Fenton systems, electrochemical technology. The primary objective furnish broad overview techniques, elucidating effectiveness, limitations, applicability. Following this, encapsulates state-of-the-art computational simulations pertaining interactions clays other adsorbents. Lastly, delves into column dye, elucidates various influencing factors, including bed height, feed concentration, pollutant feeding or flow rate, regeneration. panoramic aims provide valuable insights suitable gaps, applicability containing dye.

Language: Английский

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Removal and degradation of dyes from textile industry wastewater: Benchmarking recent advancements, toxicity assessment and cost analysis of treatment processes

Journal of environmental chemical engineering, Journal Year: 2024, Volume and Issue: 12(5), P. 113754 - 113754

Published: Aug. 6, 2024

Language: Английский

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Polymer-supported nanomaterials for photodegradation: Unraveling the methylene blue menace

Energy Conversion and Management X, Journal Year: 2024, Volume and Issue: 22, P. 100547 - 100547

Published: Feb. 16, 2024

In the modern era, inaccessibility of safe drinking water has become a hot issue. this regard, industrial chemicals are one most well known pollutants that disturb quality and make it flabby for comsumption. Amongst these pollutants, methylene blue is noxious, persistent, oncogenic, as posing severe risk to human health environmental protection. This frequently found in natural reserviors, which turn out be hazard beings other organisms. So, necessary introduce efficient eco-friendly techniques eliminating organic dyes from wastewater. To meet goal, photodegradation been reliable approach removal dyes. It can completely mineralize into nontoxic species cost-effective way. article helps readers who interested exploring their expertise research area. our study, we address both fundamental principles explore application polymer-supported nanomaterials pollutant degradation. Our study addressed critical parameters like irradiation time, oxidants, scavengers, pH, catalyst dosages, importantly, role reactive oxygen degradation provides concise overview photocatalysis, including mechanisms, reaction schemes, end products dye also discusses future outlook consuming on an scale. Additionally, categorizes approaches developing photocatalytic

Language: Английский

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