Synthesis of novel Chitosan-Tannic acid adsorbent for removal of Aluminum (III) from wastewater: characterisation, kinetics, equilibrium isotherms and thermodynamic studies

IF 3 4区工程技术 Q3 CHEMISTRY, PHYSICAL Adsorption Pub Date : 2025-02-09 DOI:10.1007/s10450-025-00604-9

Hari Mohan Meena, Shrikant Kukreti, P. S. Jassal

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Abstract

This study efficiently removed aluminum from commercial wastewater by using different doses of the novel chitosan-tannic acid (CT1, CT3, and CT6) bio-materials adsorbent. The Al³⁺ ions were determined using 797 VA anodic linear sweep voltammetry Computrace. The research examined the adsorption kinetics, adsorption isotherms, and the effect of the solution flow rate. The Freundlich isotherms precisely represented the adsorption results, with a maximum adsorption capacity of adsorbent was 684.93 mg/g. The experimental results showed that the adsorption of aluminum was maximum when solution concentrations were up to 200 mg/L. The findings indicated that the chitosan-tannic acid biomaterials primarily followed a complexation-adsorption method, exhibiting maximum adsorption capacity at pH 6.5. The study investigated the BET adsorption–desorption isotherm and evaluated the adsorption efficacy of adsorbents. Consequently, this novel, sustainable chitosan-tannic acid complex might be a successful bio-adsorbent for removing aluminum metal ions from wastewater solutions.

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来源期刊

Adsorption 工程技术-工程：化工

CiteScore

8.10

自引率

3.00%

发文量

审稿时长

2.4 months

期刊介绍： The journal Adsorption provides authoritative information on adsorption and allied fields to scientists, engineers, and technologists throughout the world. The information takes the form of peer-reviewed articles, R&D notes, topical review papers, tutorial papers, book reviews, meeting announcements, and news. Coverage includes fundamental and practical aspects of adsorption: mathematics, thermodynamics, chemistry, and physics, as well as processes, applications, models engineering, and equipment design. Among the topics are Adsorbents: new materials, new synthesis techniques, characterization of structure and properties, and applications; Equilibria: novel theories or semi-empirical models, experimental data, and new measurement methods; Kinetics: new models, experimental data, and measurement methods. Processes: chemical, biochemical, environmental, and other applications, purification or bulk separation, fixed bed or moving bed systems, simulations, experiments, and design procedures.