A Review on Photocatalytic Oil/Water Separation Membranes Based on Ti-MOFs
DOI:
https://doi.org/10.63313/AJET.9001Keywords:
Ti-MOFs, oil-water separation, photocatalytic, membranesAbstract
The escalating global issue of oil-water pollution demands advanced separation technologies that combine efficiency, sustainability, and reusability. Titani-um-based metal-organic frameworks (Ti-MOFs) have emerged as promising candidates due to their unique structural and functional properties. This review systematically examines the design, fabrication, and application of Ti-MOFs for oil-water separation, highlighting their superior attributes, including exception-al chemical stability, photocatalytic self-cleaning capability, and tunable wetta-bility. Key fabrication strategies such as in situ growth, physical compositing, and interfacial crosslinking are discussed, with emphasis on optimizing mem-brane performance through hierarchical pore engineering and heterojunction coupling. Practical applications demonstrate their efficacy in industrial wastewater treatment and marine spill remediation. Despite these advances, challenges remain in scalable synthesis and long-term stability under harsh conditions. Future directions include multifunctional membrane design and ecological impact assessments to facilitate real-world deployment. Ti-MOFs represent a transformative approach to sustainable oil-water separation, bridg-ing the gap between laboratory innovation and industrial implementation.
References
[1] He X T, Li B Y, Liu J X, et al. Facile fabrication of 2D MOF-Based membrane with hierar-chical structures for ultrafast Oil-Water separation[J]. Separation and Purification Tech-nology, 2022, 297: 121488.
[2] Fu Y, Guo Z. Natural polysaccharide-based aerogels and their applications in oil–water separations: a review[J]. Journal of Materials Chemistry A, 2022, 10(15): 8129-8158.
[3] Kathalikkattil A C, Babu R, Tharun J, et al. Advancements in the conversion of carbon diox-ide to cyclic carbonates using metal organic frameworks as catalysts[J]. Catalysis Surveys from Asia, 2015, 19(4): 223-235.
[4] Khan N A, Jhung S H. Synthesis of metal-organic frameworks (MOFs) with microwave or ultrasound: Rapid reaction, phase-selectivity, and size reduction[J]. Coordination Chemis-try Reviews, 2015, 285: 11-23.
[5] Liu J, Chen L, Cui H, et al. Applications of metal–organic frameworks in heterogeneous su-pramolecular catalysis[J]. Chemical Society Reviews, 2014, 43(16): 6011-6061.
[6] Zhang X, Wang W, Hu Z, et al. Coordination polymers for energy transfer: Preparations, properties, sensing applications, and perspectives[J]. Coordination Chemistry Reviews, 2015, 284: 206-235.
[7] Bo S, Ren W, Lei C, et al. Flexible and porous cellulose aerogels/zeolitic imidazolate framework (ZIF-8) hybrids for adsorption removal of Cr (IV) from water[J]. Journal of Solid State Chemistry, 2018, 262: 135-141.
[8] Liu Y, Lin Z, Luo Y, et al. Superhydrophobic MOF based materials and their applications for oil-water separation[J]. Journal of Cleaner Production, 2023, 420: 138347.
[9] He X, Liu X, Liu J, et al. Self-assembled superhydrophilic MOF-decorated membrane for highly efficient treatment and separation mechanism of multi-component emulsions[J]. Desalination, 2024, 569: 117047.
[10] Chen C, Weng D, Mahmood A, et al. Separation mechanism and construction of surfaces with special wettability for oil/water separation[J]. ACS applied materials & interfaces, 2019, 11(11): 11006-11027.
[11] Du J, Chen L, Zeng X, et al. Hard-and-Soft Integration Strategy for Preparation of Excep-tionally Stable Zr (Hf)-UiO-66 via Thiol–Ene Click Chemistry[J]. ACS Applied Materials & Interfaces, 2020, 12(25): 28576-28585.
[12] Deng Z, Chen C, Peng X. Metal–organic framework membranes: self-confined conversion from metal hydroxide nanostrands[J]. Accounts of Materials Research, 2024, 5(2): 206-219.
[13] Shahid M U, Najam T, Islam M, et al. Engineering of metal organic framework (MOF) membrane for waste water treatment: synthesis, applications and future challenges[J]. Journal of water process engineering, 2024, 57: 104676.
[14] Kasik A, James J, Lin Y S. Synthesis of ZIF-68 membrane on a ZnO modified α-Alumina support by a modified reactive seeding method[J]. Industrial & Engineering Chemistry Re-search, 2016, 55(10): 2831-2839.
[15] Gao J, Wei W, Yin Y, et al. Continuous ultrathin UiO-66-NH 2 coatings on a polymeric sub-strate synthesized by a layer-by-layer method: a kind of promising membrane for oil–water separation[J]. Nanoscale, 2020, 12(12): 6658-6663.
[16] Guan X, Chen F, Fang Q, et al. Design and applications of three dimensional covalent organic frameworks[J]. Chemical Society Reviews, 2020, 49(5): 1357-1384.
[17] Zhou S, Wei Y, Zhuang L, et al. Introduction of metal precursors by electrodeposition for the in situ growth of metal–organic framework membranes on porous metal substrates[J]. Journal of Materials Chemistry A, 2017, 5(5): 1948-1951.
[18] Campagnol N, Van Assche T R C, Li M, et al. On the electrochemical deposition of met-al–organic frameworks[J]. Journal of Materials Chemistry A, 2016, 4(10): 3914-3925.
[19] Mahdi E M, Tan J C. Dynamic molecular interactions between polyurethane and ZIF-8 in a polymer-MOF nanocomposite: Microstructural, thermo-mechanical and viscoelastic ef-fects[J]. Polymer, 2016, 97: 31-43.
[20] Dmitrieva E S, Anokhina T S, Novitsky E G, et al. Polymeric membranes for oil-water sep-aration: a review[J]. Polymers, 2022, 14(5): 980.
[21] Xie A, Cui J, Yang J, et al. Photo-Fenton self-cleaning PVDF/NH2-MIL-88B (Fe) membranes towards highly-efficient oil/water emulsion separation[J]. Journal of Membrane Science, 2020, 595: 117499.
[22] Su Q, Wang Q, Jia W, et al. Research progress on photocatalytic properties of titani-um-based metal-organic frameworks[J]. New Chemical Materials, 2024, 52(1): 280-286.
[23] Han G Y, Sun M, Zhao R, et al. Defect engineered Ti-MOFs and their applications[J]. Chemi-cal Society Reviews, 2025.
[24] Penboon L, Khrueakham A, Sairiam S. TiO2 coated on PVDF membrane for dye wastewater treatment by a photocatalytic membrane[J]. Water Science and Technology, 2019, 79(5): 958-966.
[25] Wei Z, Xu W, Peng P, et al. Covalent synthesis of Ti-MOF for enhanced photocatalytic CO2 reduction[J]. Molecular Catalysis, 2024, 558: 114042.
[26] Liu Y, Xin X, Shi Y, et al. Three-ligand Ti-MOFs for high-efficient photocatalytic H2 evolu-tion[J]. Chemical Engineering Journal, 2024, 482: 149193.
[27] Li J, Wang Q, Deng L, et al. Fabrication and characterization of carbon nanotubes-based porous composite forward osmosis membrane: Flux performance, separation mechanism, and potential application[J]. Journal of Membrane Science, 2020, 604: 118050.
[28] Guillen G R, Pan Y, Li M, et al. Preparation and characterization of membranes formed by nonsolvent induced phase separation: a review[J]. Industrial & Engineering Chemistry Re-search, 2011, 50(7): 3798-3817.
[29] Liu W, Que W, Shen X, et al. Unlocking active metal site of Ti-MOF for boosted heteroge-neous catalysis via a facile coordinative reconstruction[J]. Nanotechnology, 2021, 33(2): 025401.
[30] Liu Y, Shi Y, Xin X, et al. Boosting electron transfer of Ti-MOFs via electron-deficient boron doping for high-efficiency photocatalytic nitrogen fixation[J]. Applied Catalysis B: Envi-ronment and Energy, 2025, 363: 124815.
[31] Lei Z, Zhang G, Deng Y, et al. Surface modification of melamine sponges for pH-responsive oil absorption and desorption[J]. Applied Surface Science, 2017, 416: 798-804.
[32] Bibi R, Huang H, Kalulu M, et al. Synthesis of amino-functionalized Ti-MOF derived yolk–shell and hollow heterostructures for enhanced photocatalytic hydrogen production under visible light[J]. ACS Sustainable Chemistry & Engineering, 2018, 7(5): 4868-4877.
[33] Liu, Z.; Zhang, Y.; Wang, H. Superhydrophobic MIL-125(Ti)/PVDF membranes for emulsi-fied oil separation with self-cleaning capability. Journal of Membrane Science 2021, 635, 119543.
[34] Chen, F.; Xu, Y.; Li, X. Z-scheme heterojunction membranes based on MIL-125(Ti) and g-C3N4 for solar-driven oil-water remediation. Applied Catalysis B: Environmental 2023, 325, 122390.
[35] Mao Y, Meng Y, Li S, et al. Alginate-assistant nanofiber integrated with polypropylene her-nia mesh for efficient anti-adhesion effects and enhanced tissue compatibility[J]. Compo-sites Part B: Engineering, 2022, 235: 109761.
[36] Pinto R V, Wang S, Tavares S R, et al. Tuning cellular biological functions through the con-trolled release of NO from a porous Ti‐MOF[J]. Angewandte Chemie International Edition, 2020, 59(13): 5135-5143.
[37] Xu Y, Liu Z, Zhou J, et al. Engineering spiral-wound Ti-MOFs membranes for industrial oily wastewater treatment Separation and Purification Technology, 2023, 308: 122901.
[38] Zhang, Y.; Wang, H.; Liu, Z. et al. Bandgap engineering of NH₂-MIL-125(Ti) for photocata-lytic applications Advanced Materials, 2021, 33(20): 2007473.
[39] Khan A, Riahi Z, Kim J T, et al. Effect of carbon dot-doped Ti-MOF on CMC/Agar film and active packaging application on storage quality of fruits[J]. Food Chemistry, 2024, 455: 139911.
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