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An Amberlite IRA-400 Cl^- ion-exchange resin modified with Prosopis juliflora seeds as an efficient Pb²⁺ adsorbent: adsorption, kinetics, thermodynamics, and computational modeling studies by density functional theory.

ABSTRACT: A Prosopis juliflora-seed-modified Amberlite IRA-400 Cl^- ion-exchange resin (hereafter denoted as SMA resin) is used for the removal of Pb²⁺ from wastewater. SEM, EDX, FT-IR, BET, XRD, and XPS analyses were used to characterize the SMA resin. Parameters such as Pb²⁺ concentration, pH, temperature, and time are optimized. The obtained results show that the SMA resin has high efficiency for the removal of Pb²⁺ (73.45%) at a concentration of 100 mg L^-1 and a dosage of 0.01 g at pH 6. Thermodynamic studies indicate that the adsorption was spontaneous with negative ΔH° and ΔS° values at all temperatures; pseudo-second-order kinetics and the Langmuir adsorption isotherm provided the best fit (q _max = 10

SUBMITTER: Anbazhagan S

PROVIDER: S-EPMC8694330 | biostudies-literature | 2021 Jan

REPOSITORIES: biostudies-literature

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An Amberlite IRA-400 Cl^- ion-exchange resin modified with Prosopis juliflora seeds as an efficient Pb²⁺ adsorbent: adsorption, kinetics, thermodynamics, and computational modeling studies by density functional theory.

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An Amberlite IRA-400 Cl- ion-exchange resin modified with Prosopis juliflora seeds as an efficient Pb2+ adsorbent: adsorption, kinetics, thermodynamics, and computational modeling studies by density functional theory.

OmicsDI is part of the ELIXIR infrastructure

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An Amberlite IRA-400 Cl^- ion-exchange resin modified with Prosopis juliflora seeds as an efficient Pb²⁺ adsorbent: adsorption, kinetics, thermodynamics, and computational modeling studies by density functional theory.