Cereus sp. as potential biosorbent for removal of Congo red from aqueous solution: isotherm and kinetic investigations

“…The Hill-Deboer isotherm model describes a situation in which there is both mobile adsorption and lateral interaction between adsorbed molecules (Rajabi et al, 2023;Jeyavishnu & Alagesan, 2020). The equation for the Hill-de Boer isotherm is expressed by Eq.…”

Section: Hill-deboer Modelmentioning

confidence: 99%

Curcumin Dye Adsorption in Aqueous Solution by Carbon-based Date Palm Seed: Preparation, Characterization, and Isotherm Adsorption

Nandiyanto,

Ragadhita,

Maryanti

et al. 2023

JART

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In this study, date-seed-based carbon was prepared and investigated for the adsorption process on the removal of curcumin dye in an aqueous solution. Carbon is prepared by carbonizing date palm seeds for 3 hours at a temperature of 250°C, followed by a grinding and sieving process. The carbon particles were then characterized using a Digital Microscope, sieve test, and Fourier transforms infrared analysis instrument. The adsorption test was carried out through batch experiments at constant pressure and room temperature. The adsorption results were then evaluated using ten adsorption isotherm models, including Langmuir, Freundlich, Temkin, Dubinin-Radushkevich, Fowler-Guggenheim, Hill-Deboer, Jovanovic, Harkin-Jura, Flory-Huggins, and Halsey. Carbon-based adsorbent from date palm seed showed an adsorption capacity in the range of 38.759 mg/g with a suitable adsorption isotherm is Langmuir > Dubinin-Radushkevich > Jovanovic > Freundlich > Halsey. Based on the five best-fitted isotherms, the adsorption process runs normally, spontaneously, and favorably, confirming monolayer and multilayer formation occurs on heterogeneous surfaces. Then, the adsorption follows cooperative adsorption with chemical and physical interactions at one time. The research study presents findings on adsorbents synthesized by date palm seeds for water treatment and their potential applications as adsorbents.

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“…Balasubramanian [11] 2018 Positive Negative Mokkapati et al [12] 2018 Negative Negative Nayak and Pal [13] 2020 Negative Positive Jeyavishnu and Alagesan [14] 2020 Negative Negative Mathangi et al [15] 2021 Positive Negative…”

Section: Rangabhashiyam Andmentioning

confidence: 99%

The Kiselev isotherm for adsorption at the liquid-solid interface: Solving the mystery of negative equilibrium constants

Chu¹

2021

Journal of Molecular Liquids

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Cereus sp. as potential biosorbent for removal of Congo red from aqueous solution: isotherm and kinetic investigations

Cited by 9 publications

References 42 publications

Effective removal of malachite green from local dyeing wastewater using zinc-tungstate based materials

Effective removal of malachite green from local dyeing wastewater using zinc-tungstate based materials

Curcumin Dye Adsorption in Aqueous Solution by Carbon-based Date Palm Seed: Preparation, Characterization, and Isotherm Adsorption

The Kiselev isotherm for adsorption at the liquid-solid interface: Solving the mystery of negative equilibrium constants

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