Adsorptive removal of synthetic food dyes using low-cost biochar: Efficiency prediction, kinetics and desorption index evaluation

Bankole, Deborah Temitope; Inyinbor, Adejumoke Abosede; Oluyori, Abimbola Peter; Arowolo, Micheal Olaolu

doi:10.1016/j.biteb.2023.101709

Cited by 4 publications

(2 citation statements)

References 45 publications

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“…We have not used AI-assisted technologies in creating this article. Blighia sapida wastes HCl allura red 15.17 [204] royalsocietypublishing.org/journal/rsos R. Soc. Open Sci.…”

Section: Discussionmentioning

confidence: 99%

Advancements in application of modified biochar as a green and low-cost adsorbent for wastewater remediation from organic dyes

Hama Aziz,

Fatah,

Muhammad

2024

R. Soc. Open Sci.

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Synthetic organic dyes, which are resistant to biodegradation, pose a notable health risk, potentially leading to cancer and respiratory infections. Researchers have addressed this concern by exploring physicochemical methods to remove organic dyes from wastewater. A particularly promising solution involves modified biochar adsorbents, which demonstrate high efficiency in organic dye removal. Biochar, a charcoal-like material derived from biomass pyrolysis, offers advantages such as low cost, eco-friendliness, high efficiency and reusability. Beyond its role in sustainable soil remediation, biochar proves effective in removing organic dyes from wastewater after undergoing physical or chemical modification. Acid–base activation or metal–heteroatom impregnation enhances biochar's adsorption capacity. This comprehensive review examines the attributes of biochar, common methods for production and modification, and the impacts of raw materials, pyrolysis temperature, heating rate and residence time. It further elucidates the biochar adsorption mechanism in the removal of organic dyes, assessing factors influencing efficiency, including biochar feedstock, solution pH, adsorption temperature, particle size, initial dye concentration, biochar dosage and reaction time. It explores challenges, opportunities, reusability and regeneration methods of biochar in treating organic dye wastewater. It also discusses recent advances in organic dye removal using adsorption-based biochar. The review ultimately advocates for enhancing biochar's adsorption performance through post-modification.

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“…We have not used AI-assisted technologies in creating this article. Blighia sapida wastes HCl allura red 15.17 [204] royalsocietypublishing.org/journal/rsos R. Soc. Open Sci.…”

Section: Discussionmentioning

confidence: 99%

Advancements in application of modified biochar as a green and low-cost adsorbent for wastewater remediation from organic dyes

Hama Aziz,

Fatah,

Muhammad

2024

R. Soc. Open Sci.

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“…Therefore, it is necessary to estimate the obtaining costs. Factors such as the cost of the precursor, the activating agent, and the cost of energy contribute to the overall net cost of magnetic biochar preparation [73]. The feasibility of extracting biochar from peanut shell was evaluated by a simple cost analysis method.…”

Section: Obtaining Costs Estimationmentioning

confidence: 99%

Effect on the adsorption performance and mechanism of antibiotics tetracyclines by the magnetic biochar used peanut shells as raw materials

Zhang,

Hua

et al. 2024

Mater. Res. Express

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Widespread environmental pollution caused by the misuse of tetracyclines (TCs) has become a global issue, necessitating the development of water treatment materials for antibiotic removal. Magnetic biochar (MBC) possesses several advantages, including a wide range of raw material sources and low cost, making it a potential adsorbent that overcomes the limitations of biochar (BC) regarding solid-liquid separation. In this study, peanut shell-derived magnetic biochar loaded with Fe3O4 (Fe3O4/BC) was prepared to study its adsorption performance and environmental factors for TCs. The adsorption mechanism was revealed using adsorption isotherms, adsorption kinetics and thermodynamics. The results showed that the total pore volume was increased, and surface oxygen-containing functional groups were formed of that before BC modification. In a wide pH range, Fe3O4/BC showed high adsorption performance for TCs, with an adsorption rate of over 85%. Chemical adsorption was the main adsorption mechanism, including hydrogen bonding, as well as π-π interactions, electrostatic interactions, intrapore diffusion and hydrophobic interactions. Moreover, reusability and obtaining cost of the material were analyzed, demonstrating its promising application prospects. This study will promote the application of Fe3O4/BC in the removal of antibiotics pollutants from water.

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Sequestration of cyanide ions from aqueous medium by physio-chemically fabricated biochar of peels of banana and grape fruit in ecofriendly way

Dar,

Rehman,

Hafeez

et al. 2024

International Journal of Phytoremediation

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Adsorptive removal of synthetic food dyes using low-cost biochar: Efficiency prediction, kinetics and desorption index evaluation

Cited by 4 publications

References 45 publications

Advancements in application of modified biochar as a green and low-cost adsorbent for wastewater remediation from organic dyes

Advancements in application of modified biochar as a green and low-cost adsorbent for wastewater remediation from organic dyes

Effect on the adsorption performance and mechanism of antibiotics tetracyclines by the magnetic biochar used peanut shells as raw materials

Sequestration of cyanide ions from aqueous medium by physio-chemically fabricated biochar of peels of banana and grape fruit in ecofriendly way

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