Details

Autor(en) / Beteiligte

• Wang, Po
• Gong, Jue-Ying
• Li, Yao
• Tian, Xiao-Bao
• Xie, Rui
• Ju, Xiao-Jie
• Wang, Wei
• Pan, Da-Wei
• Liu, Zhuang
• Chu, Liang-Yin

Titel

Superamphophilic antimicrobial membrane engineered with zinc-coordinated metallo-polymeric framework nanocoating

Ist Teil von

• Journal of membrane science, 2024-05, Vol.702, Article 122779

Ort / Verlag

Elsevier B.V

Erscheinungsjahr

2024

Link zum Volltext

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• The combat against contamination by trace amounts of water and bacteria in aviation fuel remains a challenge, necessitating a comprehensive strategy. Here, a superamphophilic antimicrobial membrane is developed by featuring a stable zinc-coordinated polydopamine metallo-polymeric framework (PDA/Zn) on the skeleton of polyethylene terephthalate (PET) non-woven fabric. The formation of the PDA/Zn framework is streamlined through dopamine polymerization synchronized with metallo-ion coordination. This work delves into the intrinsic stability and superamphiphilic properties of the PDA/Zn framework, as well as systematically investigates its performance in fuel dehydration and carbophilus elimination. The resulting membrane exhibits a high gravity-driven flux and achieves a significant reduction in water content to below 10 ppm in aviation fuel, attributed to a demulsification and aggregation mechanism. Furthermore, our findings highlight the nearly complete antibacterial multifunctionality of the proposed membrane. It effectively prevents bacterial attachment at the liquid-solid interface and brings about bacterial eradication through the presence of Zn2+ ions and the mechanical puncturing effect of nanostructure cusps. This work not only advances applications in water dehydration and bacterial elimination but also pioneers opportunities for designing advanced functional membranes with multifaceted functionalities, including anti-fouling, self-cleaning, and antimicrobial properties, setting the stage for broader applications in membrane field. [Display omitted] •The high-flux nanocoating-engineered membrane could remove the water below 10 ppm in fuel.•The proposed membrane possesses an antibacterial multifunctionality: preventing attachment and mechanically killing.•The nanocoating consists of zinc-coordinated metallo-polymeric framework.•The nanocoating is prepared via one-step method of dopamine polymerization with metallo-ion coordination.•The nanocoating process excellent stability, superamphiphilic and antibacterial properties.