Tricosanthes cucumerina: a potential biomass for efficient removal of methylene blue from water.

Autor: Dey, Soumen, Chakraborty, Riya, Mohanta, Jhilirani, Dey, Banashree
Předmět:
Zdroj: Bioremediation Journal; 2024, Vol. 28 Issue 1, p64-78, 15p
Abstrakt: Considering the increased dye contamination in water bodies, an attempt has been made to utilize waste biomaterials as an eco-friendly dye treatment option. In this paper, we show how to employ a waste material called Tricosanthes cucumerina, popularly known as snake gourd (SG), to remove methylene blue (MB) from water. FTIR, proximate analysis, powder XRD, and SEM images were used to characterize SG. FTIR suggests the presence of poly-phenolic –OH moieties. Powder XRD shows a broad cellulosic hump at 22–24°. pH-Dependent adsorption was seen and maximum adsorption capacity was found to be 48 mg/g at pH 7. Adsorption follows Freundlich model (R2 = 0.997, n = 1.208) and pseudo-second-order kinetics (R2 = 0.999) which suggests a multi-layer, heterogeneous adsorption with partial chemisorption. Heavy metals such as lead and mercury moderately interfere with the adsorption efficiency. About 88% regeneration was achieved with a dilute hydrochloric acid and can be reused. The mechanism was proposed to be a combination of electrostatic interaction, hydrogen bonding, and π-π stacking. Abundant availability, water stability, high removal efficiency, and re-usability recommend SG as a potential choice for MB removal from water. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index
Externí odkaz:
Nepřihlášeným uživatelům se plný text nezobrazuje