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<p>Oily wastewater presents a serious environmental challenge, demanding sustainable and regenerative membrane technologies. Here, we report a green and scalable method for fabricating skin-replaceable cellulose membranes (SRC-M) from jute agro-waste, using a NaOH/urea activation route and argon-pressurized deposition onto ceramic supports. The resulting Cellulose <b>II</b>-based asymmetric membranes exhibit high water flux (~470 L m⁻²h⁻¹) and &gt;98% oil rejection across various emulsions. Notably, the membrane’s surface can be fully renewed via ultrasonication, restoring &gt;99% of the original flux after 16 fouling cycles. Density functional theory (DFT) calculations confirm the thermodynamic stability (ΔG = -0.162 eV) and low kinetic barrier (0.46 eV) of urea adsorption on cellulose, supporting the dissolution mechanism and regeneration behavior. This biodegradable, self-renewable membrane system offers a robust, circular solution for long-term oily wastewater remediation and aligns with green chemistry principles.</p><p></p>

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Skin-replaceable antifouling cellulose ceramic membranes from jute agro-waste for sustainable and efficient oily wastewater treatment

  • 期刊论文

  • 出版模式：

    开放获取

  • 发表日期：

    2026年1月3日

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  • Nadeem Baig,
  • Tauqir Ahmad,
  • Ali Sufyan,
  • Muhammad Bilal Asif,
  • Kawthar Alqudaihi,
  • Balqees Alrwaily,
  • Md. Sabbir Ahmed,
  • Md. Maniruzzaman,
  • Arshad Hussain,
  • Syed Shaheen Shah,
  • J. Andreas Larsson,
  • Md. Abdul Aziz

摘要

Oily wastewater presents a serious environmental challenge, demanding sustainable and regenerative membrane technologies. Here, we report a green and scalable method for fabricating skin-replaceable cellulose membranes (SRC-M) from jute agro-waste, using a NaOH/urea activation route and argon-pressurized deposition onto ceramic supports. The resulting Cellulose II-based asymmetric membranes exhibit high water flux (~470 L m⁻²h⁻¹) and >98% oil rejection across various emulsions. Notably, the membrane’s surface can be fully renewed via ultrasonication, restoring >99% of the original flux after 16 fouling cycles. Density functional theory (DFT) calculations confirm the thermodynamic stability (ΔG = -0.162 eV) and low kinetic barrier (0.46 eV) of urea adsorption on cellulose, supporting the dissolution mechanism and regeneration behavior. This biodegradable, self-renewable membrane system offers a robust, circular solution for long-term oily wastewater remediation and aligns with green chemistry principles.