Investigation of boundary layer effect of intra-particle diffusion on methylene blue adsorption on activated carbon

Energy Nexus, Год журнала: 2024, Номер 14, С. 100294 - 100294

Опубликована: Апрель 16, 2024

Methylene blue is a model dye used in many adsorption studies, and it chemisorbed on activated carbon (AC) adsorbent. The of an adsorbate by natural adsorbent phenomenon where kinetics often complex despite the necessity having reliable information such reactions which much needed to predict efficiency industrial processes rate plays integral part. Such is, at times, not available under different experimental conditions, limiting desired applications. research reported herein was thus performed investigate methylene (MB) onto coconut shell fitting data diffusion models. According regression analysis linearized pseudo-order models applied for various pseudo first order (PFO) found be best suited describe MB-AC system constants range 0.0799 – 0.1504 min−1 conditions ambient temperature. determined through PFO solution temperatures are indicative chemisorption MB AC surface. Application Webber Morris intra-particle (IPD) model, accounts boundary layer effect mass transfer, indicates that may controlled both film sequentially, thickness surface, measure intercept IPD sensitive conditions. Consequently, parameters would able control behaviour system, can investigated monitoring magnitude initial factor.

Язык: Английский

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From discarded waste to valuable products: Barite combination with chrysotile mine waste to produce radiation-shielding concrete

Construction and Building Materials, Год журнала: 2024, Номер 417, С. 135334 - 135334

Опубликована: Фев. 1, 2024

Язык: Английский

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Biosorbent silver nanoparticles decorated coffee-ground waste composite for cleaning water and antimicrobial applications

Environmental Science and Pollution Research, Год журнала: 2025, Номер unknown

Опубликована: Янв. 7, 2025

Язык: Английский

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Efficient dye removal from industrial wastewater using sustainable activated carbon and its polyamide nanocomposite derived from agricultural and industrial wastes in column systems

RSC Advances, Год журнала: 2023, Номер 13(36), С. 24887 - 24898

Опубликована: Янв. 1, 2023

Sugar beet crown (SBC) waste was employed to produce sustainable activated carbon (AC) by a thermo-chemical activation procedure using fixed ratio of H3PO4/SBC (1 : 1 w/w ratio) at 550 °C/2 h. An carbon/polyamide nano-composite (AC/PA) also prepared through the polymerization fabricated AC (90%) with polyamide (PA, 10%) synthetic textile proper dissolving agent specified polymer (formic acid/PA = 82/18%). Both and its derivative AC/PA were in remediation dyes from industrial wastewater column systems, their efficiencies compared various applied experimental conditions. The adsorption dye (IDW) pH-, flow rate-, bed thickness-controlled process regarded adsorbents. Kinetic studies confirmed suitability Thomas equation over Yoon Nelson model predicting dynamic IDW as assured close agreement among calculated uptake capacities both adsorbents same rates, suggesting chemisorption nature adsorption. Additionally, electrostatic attraction leading mechanism composite some advantages former latter.

Язык: Английский

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Recent developments in the adsorption of uranium ions from wastewater/seawater using carbon-based adsorbents

Journal of environmental chemical engineering, Год журнала: 2023, Номер 12(1), С. 111705 - 111705

Опубликована: Дек. 14, 2023

Язык: Английский

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Hexavalent chromium adsorption from aqueous solution utilizing activated carbon developed from Rumex abyssinicus

Results in Engineering, Год журнала: 2024, Номер 22, С. 102274 - 102274

Опубликована: Май 15, 2024

The indiscriminate release of chromium-saturated effluent into water bodies has raised concerns regarding its effect on human health and environmental ecology. Therefore, this research aimed to remove hexavalent chromium from an aqueous solution utilizing activated carbon developed Rumex abyssinicus. adsorbent was prepared through chemical impregnation with H3PO4 then thermally at 500 for 2 h. optimization the adsorption experiments performed using Box‒Behnken approach response surface methodology. characterization revealed good quality in terms amorphous structure, maximum specific area 1722.9 m2/g porous surface. Furthermore, results showed that a removal efficiency 95.97% attained optimum working pH 3, contact time 60 min, initial concentration 70 mg/L dosage 0.6 mg/100 mL. Langmuir isotherm model found have best fit experimental data. Moreover, kinetics study pseudo-second-order data best, indicating occurrence chemisorption. Overall, suggested abyssinicus could be effective removing solutions.

Язык: Английский

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Efficient adsorption of cationic and anionic dyes using hydrochar nanoparticles prepared from orange peel

Journal of Molecular Liquids, Год журнала: 2024, Номер 409, С. 125349 - 125349

Опубликована: Июнь 28, 2024

Язык: Английский

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Sequential activation of willow wood with ZnCl2 and H3PO4 drastically impacts pore structure of activated carbon

Industrial Crops and Products, Год журнала: 2024, Номер 221, С. 119387 - 119387

Опубликована: Авг. 13, 2024

Язык: Английский

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A Review on Biomass-Derived Activated Carbon for Next-Generation Supercapacitors: Cutting-Edge Advances and Future Prospects

Energy & Fuels, Год журнала: 2025, Номер unknown

Опубликована: Янв. 23, 2025

Язык: Английский

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Adsorption of remazol brilliant blue R dye onto jackfruit peel based activated carbon: Optimization and simulation for mass transfer and surface area prediction

Inorganic Chemistry Communications, Год журнала: 2023, Номер 158, С. 111721 - 111721

Опубликована: Ноя. 10, 2023

Язык: Английский

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