This work introduces a novel water purification method that integrates adsorption with thermolysis for regeneration of the adsorbent. ZnCl₂-modified kaolinite was demonstrated to effectively adsorb methyl orange (MO) from contaminated water with maximum removal under acidic conditions (pH < pHpzc). Thermolysis at 600 °C led to total decomposition of MO, as supported by TGA and FT-IR, indicating the loss of MO-specific functional groups. Kaolinite was structurally stable, allowing reuse for five cycles with stable removal efficiencies (82–85%). Kinetic studies revealed fast adsorption, and thermolysis provided complete mineralization of MO. In contrast to traditional regeneration procedures, this method maintains the efficiency of the adsorbent, rendering it a viable, cost-effective, and environmentally friendly solution for water treatment at a large scale. The coupling of adsorption and thermolysis ensures the complete degradation of pollutants while maintaining the reusability of the adsorbent, offering a green and new technology for wastewater remediation and pollution elimination.

Title

Discover Applied Sciences

Publisher

Springer Nature

Publisher Country

United States of America

Indexing

Scopus

Impact Factor

2.8

Publication Type

Online only

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Year

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Pages

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