Preparation of mesoporous activated carbon from novel African walnut shells (AWS) for deltamethrin removal: kinetics and equilibrium studies

Oba, Oluwasuyi Ayobami; Aydinlik, Nur Pasaoglulari

doi:10.1007/s13201-022-01672-w

Cited by 17 publications

(7 citation statements)

References 80 publications

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“…The increase in micro‐porosity increases the surface area of biochar, increasing the pollutants' adsorption. Oba and Pasaoglulari (2022) showed that there was more distribution of micropores, which were irregularly distributed in chemically activated walnut shell biochar, than non‐activated ones. Mataji and Khoshandam (2014) proposed that activation by using chemical creates pores on the surface of biochar; small chemicals readily react with surfaces and create more pores, which causes chemical adsorption more effectively.…”

Section: Resultsmentioning

confidence: 99%

“…Band shown at 1963, 2166, and 2339 cm −1 in non‐activated and shifted to 2033–2354 in activated walnut shell biochar conforming functional groups of CO stretching in ketone group. Oba and Pasaoglulari (2022) mentioned that the functional group of activated and non‐activated walnut shell biochar showed stretching CC, CO aromatic ring. Shagali et al (2021) treated walnut biochars using KOH and observed the functional groups like stretching alkenes and hydroxyl and aldehyde groups.…”

Section: Resultsmentioning

confidence: 99%

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Dry fruit shell‐derived biochar increases biosorption potential and detoxification of organic pollutants for land safety

Munir,

Hanif,

Abideen

et al. 2023

Land Degrad Dev

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The increase in water pollution and land degradation ultimately reduces the supply of clean water for the growing population. Biochar produced from dry fruit shells is an effective adsorbent for organic pollutants. It can help reduce soil contamination and water pollution, making it an important option for land safety. For this experiment, dry fruit shell biochar was produced and activated chemically with 1 M KOH to increase the pollutants' removal efficiency. The efficiency of biochar as an adsorber of pollutants was assessed by characterizations of scanning electron microscope, Fourier transform infrared, and X‐ray diffraction (XRD) techniques. The peak of almond shell biochar was observed between 1033 and 1068 cm−1, while in pistachio, it was observed at 1458–1446 cm−1. Data extracted from XRD showed that most peaks were shifted after activation. For example, in walnut shell biochar, the peak shifted from 11° to 18° after biochar activation. The highest pollutant removal efficiency, such as 92%, 90%, and 87%, was observed in walnut shell biochar at 1, 2, and 3 mLL−1 adsorbate concentration, respectively. Pistachio shell biochar was most effective in the presence of the chemical activator to remove toluene and phenol organic contaminants. An increase in adsorbate concentration decreased the removal efficiency from 50% to 46% in activated almond shell biochar, 58% to 55% in activated pistachio shell biochar, and 55% to 54% in activated walnut shell biochar by 1 gL−1 of adsorbent. Kinetic and equilibrium data with different applied models established that the adsorption process was favorable, and models were fitted to the experimental setup. Biochar prepared from different dry fruit shells and their optimum activation can be used as bio‐sorbent for pollutants' removal and hence improved land development for agriculture and other industrial purposes.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Dry fruit shell‐derived biochar increases biosorption potential and detoxification of organic pollutants for land safety

Munir,

Hanif,

Abideen

et al. 2023

Land Degrad Dev

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“…Activated carbon is a porous carbonaceous material whose chemical and physical properties have led to its widespread use in environmental applications, including the treatment of wastewater (to remove color), removal of pollutant gases, desulfurization of petroleum, and adsorption of antibiotic drugs [2][3][4][5].…”

Section: Introductionmentioning

confidence: 99%

Carbon Dioxide Adsorption by a High-Surface-Area Activated Charcoal

et al. 2023

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An activated carbon (AC) with a high surface area of 4320.7 m2/g was synthesized via the chemical and thermal processing of walnut residues. The resulting activated charcoal was characterized by various techniques, including Brunauer–Emmett–Teller (BET) surface area analysis, scanning electron microscopy (SEM), and IR spectroscopy. The prepared activated carbon was studied for its capacity to adsorb CO2 gas. When exposed to CO2 for 60 min in a closed chamber at atmospheric pressure at 25 °C, the adsorption of a notable 301.1 mmol CO2 (13.25 g CO2) per gram of activated carbon was observed.

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“…Deltamethrin is a synthetic insecticide used widely in agriculture as it is highly effective in killing a wide range of insects . However, deltamethrin can have a detrimental effect on aquatic ecosystems when it is released from treated wastewater, particularly if the concentration of deltamethrin exceeds 0.1 μg per liter. , Microorganisms, plants, and fish are highly sensitive to the effects of deltamethrin, and this can cause significant disruption to vital aquatic food chains . Therefore, it is essential that deltamethrin be removed from wastewater before it is discharged to prevent any negative environmental impacts .…”

Section: Introductionmentioning

confidence: 99%

Efficient Removal of Deltamethrin from Aqueous Solutions Using a Novel Lanthanum Metal–Organic Framework: Adsorption Models and Optimization via Box–Behnken Design

Alkhatib,

Ibarhiam,

Alrefaei

et al. 2023

ACS Omega

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Eliminating pesticides is essential for lowering the dangers to our environment. To do this effectively, it is crucial to find adsorbents with remarkable adsorption capacities, easy retrieval, and separation. Metal−organic frameworks (MOFs) have been extensively recognized for their exceptional ability to absorb pollutants. Therefore, we used novel lanthanum metal− organic frameworks (La-MOFs) to eliminate deltamethrin (DEL) from aqueous solutions. We proved through experimentation that the La-MOF is an efficient adsorbent for DEL from water. A study of the material revealed that the adsorbent had a surface area of 952.96 m 2 per gram and a pore volume of 1.038 cm 3 /g. These outcomes show how this substance can absorb particles. Utilizing kinetic models and conforming to the pseudo-second-order model, a thorough analysis of the efficiency of DEL adsorption onto La-MOF was conducted. To create a perfectly tailored approach, we utilized many parameters. The synthetic La-MOF adsorbent may undergo up to five steps of adsorption−desorption and has exceptional cyclability and reusability. To confirm purifying wastewater samples in the laboratory, the presentation of the established adsorbent was evaluated. For the management of industrial effluent and water filtration, the La-MOF adsorbent offered a simple and effective solution. Our investigation suggests that the method we describe for removing DEL from wastewater samples using the La-MOF adsorbent is unique.

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Preparation of mesoporous activated carbon from novel African walnut shells (AWS) for deltamethrin removal: kinetics and equilibrium studies

Cited by 17 publications

References 80 publications

Dry fruit shell‐derived biochar increases biosorption potential and detoxification of organic pollutants for land safety

Dry fruit shell‐derived biochar increases biosorption potential and detoxification of organic pollutants for land safety

Carbon Dioxide Adsorption by a High-Surface-Area Activated Charcoal

Efficient Removal of Deltamethrin from Aqueous Solutions Using a Novel Lanthanum Metal–Organic Framework: Adsorption Models and Optimization via Box–Behnken Design

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