A review of superwetting aerogel-based oil-water separation materials

Li, Jiehui; Liu, Qinghua; He, Jinmei; Zhao, Yue; Mu, Leihuan; Liu, Xiaofeng; Zhang, Ying; Sun, Cai-Li; Zhang, Nan; Qu, Mengnan

doi:10.1016/j.mtsust.2024.100741

Cited by 1 publication

(1 citation statement)

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“…The increasing demand for these resources due to population growth and industrialization has further highlighted these challenges (Farghali et al 2023;Radji et al 2024;Rocha et al 2024). Furthermore, the extensive use of non-renewable energies and the presence of pollutants in water resources, including oils and organic solvents have hardened these challenges (Tee et al 2023;Voumik et al 2023;Li et al 2024a). Water bodies polluted with oil have a great possibility of endangering marines' lives, and damaging human's food chain, consequently (Jing et al 2024;Li et al 2024b).…”

Section: Introductionmentioning

confidence: 99%

Multifunctional MnO2 nanorods-modified wood sponge for water remediation: Applications for heavy metal sorption and oil/water separation

Saghir,

Goharshadi

2024

Preprint

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This study focuses on the development of a wood sponge (WS) modified with MnO2 nanorods (MnO2/WS) from balsa natural wood, as an abundant environmental-friendly raw material, to adsorb organic solvents, oils, and heavy metal ions from water. The MnO2/WS composite exhibits an exceptionally low density of 0.014 g cm− 3 and a high porosity exceeding 97%. MnO2/WS demonstrates successful sorption-desorption cycles over 20 iterations. Zeta potential analysis reveals the negative charge (-22.31 mV) of MnO2 nanorods at pH 4.68, underscoring their affinity for adsorbing positively-charged heavy metal ions commonly found in industrial effluents. Moreover, WS exhibits exceptional mechanical robustness, enduring 1000 stress-strain cycles with high shape recovery, ensuring its durability under operational conditions. Data above proved several strengths for MnO2/WS, such as cost-effective production process, high reusability, remarkable sorption capacities for carbon tetrachloride and soybean oil at 29.56 and 17.65 times its mass, respectively, efficient performance, and the capability to produce potable water from real industrial effluents position MnO2/WS as an ideal solution for mitigating water crises.

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