Adsorption Capacity of Coconut (Cocos nucifera L.) Shell for Lead, Copper, Cadmium and Arsenic from Aqueous Solutions

Okafor, Peter C.; Okon, Patrick Ene; Daniel, Enobong Felix; Ebenso, Eno E.

doi:10.1016/s1452-3981(23)16550-3

Cited by 61 publications

(1 citation statement)

References 14 publications

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“…The temperature effect on the agricultural adsorbent’s capacity depends on the surface functional groups [ 138 ]. They reviewed and reported the results of many studies, such as mango leaf powder [ 139 ], rice husk [ 139 ], orange peel [ 140 ], and coconut shell [ 141 ]), which were all found to increase the percentage adsorption of metal ions with the increase in the temperature range (25–40 °C). In comparison, the adsorption of Cd 2+ on the cashew nut shell was decreased from 80.13% to 74.32% with the rise in temperature from 30 °C to 60 °C, respectively.…”

Section: Batch Metal Ion Adsorption By Agricultural Solid Waste Bioma...mentioning

confidence: 99%

Agricultural Solid Wastes Based Adsorbent Materials in the Remediation of Heavy Metal Ions from Water and Wastewater by Adsorption: A Review

Sen

2023

Molecules

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Adsorption has become the most popular and effective separation technique that is used across the water and wastewater treatment industries. However, the present research direction is focused on the development of various solid waste-based adsorbents as an alternative to costly commercial activated carbon adsorbents, which make the adsorptive separation process more effective, and on popularising the sustainable options for the remediation of pollutants. Therefore, there are a large number of reported results available on the application of raw or treated agricultural biomass-based alternatives as effective adsorbents for aqueous-phase heavy metal ion removal in batch adsorption studies. The goal of this review article was to provide a comprehensive compilation of scattered literature information and an up-to-date overview of the development of the current state of knowledge, based on various batch adsorption research papers that utilised a wide range of raw, modified, and treated agricultural solid waste biomass-based adsorbents for the adsorptive removal of aqueous-phase heavy metal ions. Metal ion pollution and its source, toxicity effects, and treatment technologies, mainly via adsorption, have been reviewed here in detail. Emphasis has been placed on the removal of heavy metal ions using a wide range of agricultural by-product-based adsorbents under various physicochemical process conditions. Information available in the literature on various important influential physicochemical process parameters, such as the metal concentration, agricultural solid waste adsorbent dose, solution pH, and solution temperature, and importantly, the adsorbent characteristics of metal ion removal, have been reviewed and critically analysed here. Finally, from the literature reviewed, future perspectives and conclusions were presented, and a few future research directions have been proposed.

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Section: Batch Metal Ion Adsorption By Agricultural Solid Waste Bioma...mentioning

confidence: 99%

Agricultural Solid Wastes Based Adsorbent Materials in the Remediation of Heavy Metal Ions from Water and Wastewater by Adsorption: A Review

Sen

2023

Molecules

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Remediation of Toxic Contaminants in Water Using Agricultural Waste

Jain

Payal

2021

Applied Water Science

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Anionic Surfactant Impregnation in Solid Waste for Cu²⁺ Adsorption: Study of Kinetics, Equilibrium Isotherms, and Thermodynamic Parameters

Nascimento

Neto

Bezerra

et al. 2020

J Surfact & Detergents

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Coconut shell powder (CP) and diatomite (Di) were modified with microemulsion (μE), producing low‐cost adsorbents for copper (II) removal from aqueous solutions. The μE was prepared using as active phase an anionic surfactant sodium octanoate (SO), obtained from the saponification of octanoic acid. The effect of modification on the adsorption capacity of Cu+2 was evaluated taking into consideration the solution pH, equilibrium time, temperature, and initial concentration of metal in solution. The adsorbents were analyzed by characterization techniques of X‐Ray Fluorescence, scanning electron microscope and Fourier Transform Infrared Spectroscopy. The obtained experimental data were analyzed using the equations of Langmuir, Freundlich, Temkin, and Dubinin Radushkevich models. The initial concentration of 50 mg Cu+2/L solution and 0.2 g of adsorbent materials modified with the μE presented a Cu+2 removal efficiency of 86.81% and 96.3% for CP and Di, respectively. The kinetic models of pseudo first‐order, pseudo second‐order, Elovich, and intraparticle diffusion were used in this study to describe the adsorption rate. The presence of sodium octanoate functional (OS) group provided ion exchange sites suitable to Cu+2 adsorption. The stability of the OS impregnation using microemulsion was evaluated based on a desorption study.

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Adsorption Capacity of Coconut (Cocos nucifera L.) Shell for Lead, Copper, Cadmium and Arsenic from Aqueous Solutions

Cited by 61 publications

References 14 publications

Agricultural Solid Wastes Based Adsorbent Materials in the Remediation of Heavy Metal Ions from Water and Wastewater by Adsorption: A Review

Agricultural Solid Wastes Based Adsorbent Materials in the Remediation of Heavy Metal Ions from Water and Wastewater by Adsorption: A Review

Remediation of Toxic Contaminants in Water Using Agricultural Waste

Anionic Surfactant Impregnation in Solid Waste for Cu²⁺ Adsorption: Study of Kinetics, Equilibrium Isotherms, and Thermodynamic Parameters

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Adsorption Capacity of Coconut (Cocos nucifera L.) Shell for Lead, Copper, Cadmium and Arsenic from Aqueous Solutions

Cited by 61 publications

References 14 publications

Agricultural Solid Wastes Based Adsorbent Materials in the Remediation of Heavy Metal Ions from Water and Wastewater by Adsorption: A Review

Agricultural Solid Wastes Based Adsorbent Materials in the Remediation of Heavy Metal Ions from Water and Wastewater by Adsorption: A Review

Remediation of Toxic Contaminants in Water Using Agricultural Waste

Anionic Surfactant Impregnation in Solid Waste for Cu2+ Adsorption: Study of Kinetics, Equilibrium Isotherms, and Thermodynamic Parameters

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Anionic Surfactant Impregnation in Solid Waste for Cu²⁺ Adsorption: Study of Kinetics, Equilibrium Isotherms, and Thermodynamic Parameters