Synthesis of MnFe 2 O 4 /activated carbon derived from durian shell waste for removal of indole in water: Optimization, modelling, and mechanism.

Autor: Nguyen NTH; Institute of Applied Technology and Sustainable Development, Nguyen Tat Thanh University, 298-300A Nguyen Tat Thanh, District 4, Ho Chi Minh City, 755414, Viet Nam; Nong Lam University, Thu Duc District, Ho Chi Minh City, 700000, Viet Nam., Tran GT; Institute of Applied Technology and Sustainable Development, Nguyen Tat Thanh University, 298-300A Nguyen Tat Thanh, District 4, Ho Chi Minh City, 755414, Viet Nam; Nong Lam University, Thu Duc District, Ho Chi Minh City, 700000, Viet Nam., Nguyen TTT; Nong Lam University, Thu Duc District, Ho Chi Minh City, 700000, Viet Nam., Nguyen DTC; Institute of Applied Technology and Sustainable Development, Nguyen Tat Thanh University, 298-300A Nguyen Tat Thanh, District 4, Ho Chi Minh City, 755414, Viet Nam. Electronic address: ntcduyen@ntt.edu.vn., Tran TV; Institute of Applied Technology and Sustainable Development, Nguyen Tat Thanh University, 298-300A Nguyen Tat Thanh, District 4, Ho Chi Minh City, 755414, Viet Nam. Electronic address: tranuv@gmail.com.
Jazyk: angličtina
Zdroj: Environmental research [Environ Res] 2024 Aug 01; Vol. 254, pp. 118883. Date of Electronic Publication: 2024 Apr 05.
DOI: 10.1016/j.envres.2024.118883
Abstrakt: While durian shell is often discharged into landfills, this waste can be a potential and zero-cost raw material to synthesize carbon-based adsorbents with purposes of saving costs and minimizing environmental contamination. Indole (IDO) is one of serious organic pollutants that influence aquatic species and human health; hence, the necessity for IDO removal is worth considering. Here, we synthesized a magnetic composite, denoted as MFOAC, based on activated carbon (AC) derived from durian shell waste incorporated with MnFe 2 O 4 (MFO) to adsorb IDO in water. MFOAC showed a microporous structure, along with a high surface area and pore volume, at 518.9 m 2 /g, and 0.106 cm 3 /g, respectively. Optimization of factors affecting the IDO removal of MFOAC were implemented by Box-Behnken design and response surface methodology. Adsorption kinetics and isotherms suggested a suitable model for MFOAC to remove IDO. MFOAC was recyclable with 3 cycles. Main interactions involving in the IDO adsorption mechanism onto MFOAC were clarified, including pore filling, n-π interaction, π-π interaction, Yoshida H-bonding, H-bonding.
Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
(Copyright © 2024 Elsevier Inc. All rights reserved.)
Databáze: MEDLINE
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