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Removal of Congo Red Dye Using Green Kyllinga Weed Extract and Silver Nanoparticles as Catalysts
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Removal of Congo Red Dye Using Green Kyllinga Weed Extract and Silver Nanoparticles as Catalysts

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Abstract:

This study describes the ability of green kyllinga weed extract (GKWE) with silver nanoparticles (AgNPs) as catalysts for the removal of congo red (CR) dye from synthetic coloring wastewater. AgNPs were synthesized using GKWE as a reducing agent, resulting in the formation of AgNPs with an average size of 17.64 nm. For the catalytic study, the experiment was carried out in batch mode. Different parameters such as the effect of pH, amount of AgNPs as a catalyst, initial CR dye concentration, and amount of GKWE were evaluated for the removal of CR dye for 30 mins reaction times. The CR removal was achieved between 91.2% and 96.7% at the optimum condition which is at pH 2, 0.5 mL of 2 mM AgNPs as a catalyst, 60-100 mg/L of initial CR dye concentration, and 1 mL amount of GKWE were used. The result showed that the combination between GKWE and AgNPs had a synergy interaction in enhancing the removal of CR dye from coloring wastewater via the coagulation-flocculation and sedimentation process.

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Periodical:

Journal of Metastable and Nanocrystalline Materials (Volume 36)

Pages:

63-68

DOI:

https://doi.org/10.4028/p-x6c7nw

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Online since:

May 2023

Authors:

Norain Isa*, Siti Hajar Khalid, Aishah Nur Addia Azizan, Nor Aimi Wahab, Mohamed Syazwan Osman, Vicinisvarri Inderan

Keywords:

Catalyst, Congo Red Dye, Green Kyllinga Weed, Silver Nanoparticles, Synthetic Wastewater

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© 2023 Trans Tech Publications Ltd. All Rights Reserved

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