A Novel Green Synthesis of Zinc Sulfide Nano-Adsorbents Using Artemisia Herba Alba Plant Extract for Adsorption and Photocatalysis of Methylene Blue Dye - Archive ouverte HAL
Article Dans Une Revue Chemistry Africa Année : 2023

A Novel Green Synthesis of Zinc Sulfide Nano-Adsorbents Using Artemisia Herba Alba Plant Extract for Adsorption and Photocatalysis of Methylene Blue Dye

Résumé

We report a facile and green route for a new synthesis of sulfide nanoparticles (ZnS NPs) using Artemisia Herba Alba (AHA) plant extract for efficient adsorption/photodegradation of methylene blue dye (MB). Results exhibited a blue shift in the absorbance band and higher energy band gap values than bulk ZnS materials, which was due to the quantum confinement effect. X-ray diffraction confirmed the formation of the cubic phase of ZnS-AHA nanocrystals with a calculated average size of 4 nm. Green synthesized ZnS NPs show enhanced ad-sorption efficiency toward MB from contaminated water. ZnS-AHA NPs showed a specific surface area of 36.82 cm2 g-1 and an adsorption capacity of 31.17 mg g-1 for MB. The Langmuir-Freundlich model modeled adsorption data. The photocatalytic degradation performance of the green nanoparticles under sunlight irradiation showed a remarkable dye degradation rate of 94.09% in 180 min. In summary, this eco-friendly NPs is a highly promising material to be used in wastewater treatment for the removal of organic compounds.
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Dates et versions

hal-04503752 , version 1 (13-03-2024)

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Sabri Ouni, Naim Bel Haj Mohamed, Mohamed Haouari, Abdelhamid Elaissari, Abdelhamid Errachid, et al.. A Novel Green Synthesis of Zinc Sulfide Nano-Adsorbents Using Artemisia Herba Alba Plant Extract for Adsorption and Photocatalysis of Methylene Blue Dye. Chemistry Africa, 2023, 6 (5), pp.2523-2535. ⟨10.1007/s42250-023-00667-7⟩. ⟨hal-04503752⟩
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