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<p>Marine oil spills have an enormous impact on both terrestrial and aquatic ecosystems by contaminating water bodies, disrupting local wildlife, and damaging habitats. The effects can be long-lasting, harming biodiversity and disrupting the food chain. To mitigate this issue, we propose a straightforward yet effective method for cleaning up oil spills. Zeolitic Imidazolate Framework (ZIF) are a class of metal organic framework (MOF) with enormous pore sizes that make it easy for oil molecules to reside within them. This work aims to increase the absorption capacity of loofah (<i>luffa aegyptiaca</i>) sponge by applying a polymer coating of MOF (ZIF-67). Additionally, using loofah sponge as a substrate in composite is a more cost-effective and environmentally conscious option. Using a scanning electron microscope, the surface morphology of the composite was examined, demonstrating the surface roughness following MOF coating was determined. Wettability of the composite was determined by contact angle analysis, which revealed that the composite has a water contact angle of 105.3°, implying formation of hydrophobic composite material. Moreover, incorporation of polyethyleneimine (PEI) was done to regulate the surface energy of MOF which was inspected using surface energy modelling i.e., Zisman and Neumann model. The entire benefits of ZIF-67 may be utilised to create interfacial adhesion for enhanced interfacial strength through the synergistic modification of PEI. Furthermore, the absorption capacities (40.7&#xa0;g/g − 71.3&#xa0;g/g), recyclability and regenerability of the composite was determined in this work.</p>

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Sustainable Oil Absorption Using Polymerized ZIF-67 Coated Loofah: Surface Energy Insights

  • 期刊论文

  • 发表日期：

    2025年4月8日

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  • Isha Riyal,
  • Shivani Nautiyal,
  • Vaishnavi,
  • Himani Sharma,
  • Charu Dwivedi

摘要

Marine oil spills have an enormous impact on both terrestrial and aquatic ecosystems by contaminating water bodies, disrupting local wildlife, and damaging habitats. The effects can be long-lasting, harming biodiversity and disrupting the food chain. To mitigate this issue, we propose a straightforward yet effective method for cleaning up oil spills. Zeolitic Imidazolate Framework (ZIF) are a class of metal organic framework (MOF) with enormous pore sizes that make it easy for oil molecules to reside within them. This work aims to increase the absorption capacity of loofah (luffa aegyptiaca) sponge by applying a polymer coating of MOF (ZIF-67). Additionally, using loofah sponge as a substrate in composite is a more cost-effective and environmentally conscious option. Using a scanning electron microscope, the surface morphology of the composite was examined, demonstrating the surface roughness following MOF coating was determined. Wettability of the composite was determined by contact angle analysis, which revealed that the composite has a water contact angle of 105.3°, implying formation of hydrophobic composite material. Moreover, incorporation of polyethyleneimine (PEI) was done to regulate the surface energy of MOF which was inspected using surface energy modelling i.e., Zisman and Neumann model. The entire benefits of ZIF-67 may be utilised to create interfacial adhesion for enhanced interfacial strength through the synergistic modification of PEI. Furthermore, the absorption capacities (40.7 g/g − 71.3 g/g), recyclability and regenerability of the composite was determined in this work.