Eco-friendly magnetic biochar from Leb Mu Nang banana peel: Response surface methodology optimization for Cd(II) adsorption from synthetic wastewater

Limmun, Wanida; Limmun, Warunee; Borkowski, John J.; Ishikawa, Nao; Pairintra, Rattanachai; Chungcharoen, Thatchapol; Phanchindawan, Naree; Maneesri, Wisit; Pewpa, Orrawan; Ito, Ayumi

doi:10.1016/j.biteb.2023.101743

Cited by 4 publications

(1 citation statement)

References 36 publications

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“…Carbon materials have been reported to perform the best owing to their numerous advantages, such as high stability, excellent removal e ciency, and large surface area [16] . Recently, various types of biochar materials such as banana peel biochar [17] , Clostridium thiosulfatireducens [18] , Ficus virens [19] , grape stalk [20] , Oyster shell [21] , sugar cane bagasse [22] , etc. have been used for Cd(II) adsorption.…”

Section: Introductionmentioning

confidence: 99%

Removal of Cadmium (II) from aqueous solution through adsorption using wood biochar: Kinetics and Isotherms studies

Lalhruaitluanga

Hauhnar²

2023

Preprint

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Removal of cadmium ions through adsorption has been investigated by locally available wood biochar. The motivations of the present study were to investigate the application of this wood biochar in the field of environmental problem, so that wood biochar would be more valuable for the community. Freundlich, Langmuir, Temkin, Redlich-Peterson, Sips, Flory-Huggins, Fowler-Guggenheim, and Harkin-Jura isotherms were used to elucidate the adsorption mechanism. Similarly, Pseudo- first order, Pseudo- second order, Intra-particle diffusion, and liquid film diffusion models were used to study the kinetics of adsorption. The sorption process is favorable with a monolayer formation and predominantly physical adsorption when the equilibrium was attained. The negative value of Gibbs free energy (ΔGo) indicates that the adsorption process is thermodynamically spontaneous and feasible. The presence of repulsion between the adsorbed molecules was also confirmed. The maximum adsorption capacity (qmax) was 28.57 mg/g. The kinetics of the adsorption process follows Pseudo- second order and is also controlled by diffusion through the liquid film. It is also confirm existence of boundary layer influence by Weber and Morris intraparticle diffusion. From these studies, the wood biochar could be used as adsorbents for efficient treatment of Cd (II) from aqueous solution.

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Section: Introductionmentioning

confidence: 99%

Removal of Cadmium (II) from aqueous solution through adsorption using wood biochar: Kinetics and Isotherms studies

Lalhruaitluanga

Hauhnar²

2023

Preprint

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Nano-water hyacinth protein adsorbent as soil amendment alleviates cadmium stress in common bean seedlings by improving soil enzymes and mitigating oxidative stress

Alzandi,

Al Hijab,

Alzahrani

et al. 2024

Adsorption

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Insights into Kinetics and Isotherms studies of Cadmium (II) adsorption behavior onto wood biochar from aqueous solution

Lalhruaitluanga,

Hauhnar

2024

Preprint

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Objectives: This study aims to investigate the Cd(II) adsorption from aqueous solutions via wood biochar (BC) as an adsorbent, using different parameters, adsorption isotherms, and kinetic models. Methods: Experimental tests were conducted to study the Cd(II) adsorption on a batch mode system. The study evaluated parameters such as pH, contact time, and Cd(II) concentration. To analyze the adsorption mechanism, various isotherms were utilized including Freundlich, Langmuir, Temkin, Redlich-Peterson, Sips, Flory-Huggins, Fowler-Guggenheim, and Harkin-Jura were used. Additionally, Pseudo-first-order and Pseudo-second-order were used to study the kinetics of adsorption. Findings: The Langmuir isotherm suggests that the maximum adsorption capacity (qmax) is 28.57 mg/g. According to this model, the metal ions are adsorbed by forming a monolayer and do not interact or compete with each other. Based on the Temkin isotherm, it can be concluded that the adsorption of Cd(II) onto BC is mainly physical in nature, as the value of heat of adsorption is less than 1.0 kcal/mol. The Redlich-Peterson and Sips isotherms indicate that the adsorption process follows the Langmuir form and further supports the predominance of monolayer adsorption pattern. The negative value of Gibbs free energy (ΔGo) suggests that the adsorption process is thermodynamically spontaneous and feasible. The Flory-Huggins and Fowler-Guggenheim isotherms indicate that the active zone of the adsorbent is occupied by adsorbate and also suggest the presence of repulsion between the adsorbate. The kinetics of the adsorption system followed a pseudo-second-order reaction rather than a pseudo-first-order reaction with an R2 of 0.999 and 0.979, respectively. Novelty and applications: The results of various analyses indicate that the process of wood biochar adsorption is efficient and can be scaled up for the heavy metals removal from contaminated water.

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Eco-friendly magnetic biochar from Leb Mu Nang banana peel: Response surface methodology optimization for Cd(II) adsorption from synthetic wastewater

Cited by 4 publications

References 36 publications

Removal of Cadmium (II) from aqueous solution through adsorption using wood biochar: Kinetics and Isotherms studies

Removal of Cadmium (II) from aqueous solution through adsorption using wood biochar: Kinetics and Isotherms studies

Nano-water hyacinth protein adsorbent as soil amendment alleviates cadmium stress in common bean seedlings by improving soil enzymes and mitigating oxidative stress

Insights into Kinetics and Isotherms studies of Cadmium (II) adsorption behavior onto wood biochar from aqueous solution

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