Adsorption performance of tartrazine dye from wastewater by raw and modified biomaterial: Equilibrium, isotherms, kinetics and regeneration studies

Rzig, Boutheina; Kojok, Rouba; Khalifa, Eya Ben; Magnacca, Giuliana; Lahssini, Thouraya; Hamrouni, Béchir; Bellakhal, Nizar

doi:10.1007/s13399-023-03982-8

Cited by 6 publications

(2 citation statements)

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“…Furthermore, it is evident from the comparison of the three models with the experimental results (Figure 6) that the Langmuir isotherm best describes the tartrazine adsorption on biochar. Similar results in which the Langmuir isotherm was adapted to the adsorption of tartrazine on bentonite modified with octa-decyltrimethylammonium bromide [56], raw sawdust and activated sawdust [10], and microcline/MWCNTs nanocomposite [57] were also obtained by other authors. We evaluated the tartrazine adsorption ability of commercial biochar b with other adsorbent reports.…”

Section: Isotherm Modelsupporting

confidence: 81%

“…Many conventional physical and biological methods were employed for the removal of dyes from water-among these, photodegradation, coagulation, membrane separation, reverse osmosis electrochemical processes, and adsorption [10][11][12][13]. Most of these processes require high operational and capital costs, which restricts their application for the removal of contaminants from polluted waters [14].…”

Section: Introductionmentioning

confidence: 99%

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Commercially Biochar Applied for Tartrazine Removal from Aqueous Solutions

Soran,

Bocșa,

Pintea

et al. 2023

Applied Sciences

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Biochar gained attention due to its definite physico-chemical characteristics and because it is a cost-effective and efficient adsorbent. In this paper, commercial biochar was tested for the removal of tartrazine from aqueous solutions. Thus, the optimum experimental conditions were determined for several parameters (pH, temperature, initial concentration of tartrazine, biochar dose, and contact time). The concentration of tartrazine residues was determined using UV-Vis spectrophotometry. The best experimental results were obtained at 1 mg L−1 concentration of tartrazine, pH 2, 30 °C, 18 min, and 0.9 g L−1 adsorbent dose. The maximum removal efficiency of tartrazine obtained in optimum conditions was 90.18%. The experimental data were analyzed by the isotherm and kinetic models. The isotherm and kinetics of tartrazine removal on biochar follow the Langmuir isotherm and pseudo-second-order kinetics, respectively. According to the Langmuir isotherm model, the biochar showed a maximum adsorption capacity of 3.28 mg g−1. In addition, biochar demonstrated a good reuse potential and therefore can be used for the removal of tartrazine from aqueous solutions.

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Section: Isotherm Modelsupporting

confidence: 81%