Kinetics Analysis of Crystal Violet Adsorption from Aqueous Solution onto Flamboyant Pod Biochar

Yıl 2024, Cilt: 7 Sayı: 2, 105 - 122, 04.10.2024

Azeez Akinyemi , Abass Alade , Akeem Olatunde Arinkoola , Bisola Olabiyi

https://doi.org/10.58692/jotcsb.1414940

Öz

The increasing presence of presistent synthetic dyes, like crystal violet (CV), in wastewater poses a significant threat to aquatic ecosystems and human health due to its genotoxicity and carcinogenicity. Biochar derived from agricultural waste offers a promising, cost-effective, and eco-friendly approach for dye removal. This study explores the potential of flamboyant pod biochar (FPB) as a novel and sustainable adsorbent for CV removal. FPB offers a unique advantage as it utilizes readily available flamboyant pod waste, promoting waste valorization and a cost-effective approach. FPB was synthesized through a simple process involving milling, sun-drying, and pyrolyzing flamboyant pod waste at 300 °C. Batch adsorption experiments were conducted to evaluate the influence of contact time and initial dye concentration on removal efficiency. Kinetic modeling using pseudo-first-order and pseudo-second-order models explored the underlying mechanisms governing the adsorption process. The pseudo-second-order kinetic model exhibited a superior fit (R² > 0.87) compared to the pseudo-first-order model, suggesting a chemisorption mechanism governing the adsorption process. These findings demonstrate the potential of FPB as a low-cost, sustainable adsorbent for CV removal from wastewater.

Anahtar Kelimeler

Adsorption, Biochar, Crystal Violet, Error Analysis, Kinetic Model

Etik Beyan

The authors uphold that there are no conflicts of interest related with the publication of this article.

Destekleyen Kurum

Ladoke Akintola University of Technology, Ogbomso Nigeria

Teşekkür

The authors acknowledge the Bioenvironmental Water Engineering Research Group (BEWERG) and the “Departments of Chemical Engineering Ladoke Akintola University of Technology (LAUTECH)” for the usage of their laboratories.

Kaynakça

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