Removal of Lead Using Novel Composite Synthesized from Rice Husk and Used Tea Leaves Extract DOI Creative Commons

Md. Mukter Alam,

Azmira Sultana,

Md. Rayhan Sarker

et al.

Textile & Leather Review, Journal Year: 2024, Volume and Issue: 7, P. 1118 - 1142

Published: June 17, 2024

Untreated industrial effluents, particularly from tanneries and heavy industries, are the main source of metal pollution, which poses serious environmental risks. Lead is one most toxic metals, adversely affects human functioning accumulates in environment. This study presents ACUTLaqE (Activated Carbon-Used Tea Leaves Aqueous Extract) as an effective adsorbent for Pb2+ ion removal their aqueous solution. The composite was synthesized by blending activated carbon rice husks with a tea extract solution characterized using SEM, XRD, FTIR spectroscopy. Batch tests demonstrated that highly efficient, removing about 99% ions at dose 2 g/L within 30 minutes. adsorption data conformed well to Langmuir isotherm model, suggesting homogeneous monolayer formation on surface. qm 38.61 mg/g, RL value close 0, indicating favourable adsorption. Thermodynamic parameters showed negative Gibbs free energy (ΔG⁰) values, reflecting spontaneous process. enthalpy (ΔH⁰) entropy (ΔS⁰) changes were 66.86 KJmol-1 257.12 JK-1mol-1, respectively. mechanism involved electrostatic interactions surface complexation composite's hydroxyl carboxyl groups. These findings suggest promising material potentially other metals effluents.

Language: Английский

Removal of Lead Using Novel Composite Synthesized from Rice Husk and Used Tea Leaves Extract DOI Creative Commons

Md. Mukter Alam,

Azmira Sultana,

Md. Rayhan Sarker

et al.

Textile & Leather Review, Journal Year: 2024, Volume and Issue: 7, P. 1118 - 1142

Published: June 17, 2024

Untreated industrial effluents, particularly from tanneries and heavy industries, are the main source of metal pollution, which poses serious environmental risks. Lead is one most toxic metals, adversely affects human functioning accumulates in environment. This study presents ACUTLaqE (Activated Carbon-Used Tea Leaves Aqueous Extract) as an effective adsorbent for Pb2+ ion removal their aqueous solution. The composite was synthesized by blending activated carbon rice husks with a tea extract solution characterized using SEM, XRD, FTIR spectroscopy. Batch tests demonstrated that highly efficient, removing about 99% ions at dose 2 g/L within 30 minutes. adsorption data conformed well to Langmuir isotherm model, suggesting homogeneous monolayer formation on surface. qm 38.61 mg/g, RL value close 0, indicating favourable adsorption. Thermodynamic parameters showed negative Gibbs free energy (ΔG⁰) values, reflecting spontaneous process. enthalpy (ΔH⁰) entropy (ΔS⁰) changes were 66.86 KJmol-1 257.12 JK-1mol-1, respectively. mechanism involved electrostatic interactions surface complexation composite's hydroxyl carboxyl groups. These findings suggest promising material potentially other metals effluents.

Language: Английский

Citations

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