Membrane Science and Technology

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Tannic acid-modified carbon membranes for the separation of n-hexane/water emulsion

Authors： JIAO Dian1, ZHANG Pei1, WU Yonghong1, ZHANG Hui2, QIU Ping3, ZHANG Bing1

Units： 1. School of Petrochemical Engineering, Shenyang University of Technology, Liaoyang 111003, China;
2. Liaoning Yufeng Chemical Co., Ltd., Liaoyang 110801, China; 3. School of New Energy and
Materials, China University of Petroleum (Beijing), Beijing 102249, China

KeyWords： carbon membrane； microfiltration； n-hexane； tannic acid

ClassificationCode：TQ028.8

year,volume(issue):pagination： 2026, 46(4):80-88

Abstract：

In order to enhance the separation performance for n-hexane/water emulsions, tannic acid (TA) was employed to optimize the surface hydrophilicity and pore architecture of carbon membranes. The prepared carbon membranes were comprehensively characterized by scanning electron microscope, Fourier-transform infrared spectroscopy, bubble-point porometry, and water contact-angle measurements. The effects of TA concentration and modification duration on the microstructural evolution and separation performance of the membranes were systematically investigated. The results demonstrated that TA modification significantly improved the membrane hydrophilicity, optimized the pore structure and the separation efficiency. The n-hexane rejection and water permeation flux could respectively reach to 45.73% and 8 746.34 kg/(m2·h·MPa) for the carbon membranes in the treatment of n-hexane/water emulsion, which are modified by TA concentration of 1.0 mg/mL and modification time of 12 h.

Funds：

辽宁省“兴辽英才计划”科技创新团队项目(XLYC2404028)；辽阳市“揭榜挂帅”计划项目(2024012)；辽宁省高校重点科研项目(LJ222510142001)

AuthorIntro：

焦点（2001-），男，辽宁铁岭人，硕士研究生，研究方向为液体分离炭膜.*通讯作者，E-mail：zhangbing@sut.edu.cn

Reference：

[1]Prasad W, Wani A D, Khamrui K, et al. Green solvents, potential alternatives for petroleum based products in food processing industries ［J］. Clean Chem Eng, 2022, 3: 100052.
［2］Liu M, Shen L, Wang J, et al. Continuous separation and recovery of high viscosity oil from oil-in-water emulsion through nondispersive solvent extraction using hydrophobic nanofibrous poly (vinylidene fluoride) membrane ［J］. J Membr Sci, 2022, 660: 120876.
［3］Chang S H. Utilization of green organic solvents in solvent extraction and liquid membrane for sustainable wastewater treatment and resource recovery - A review ［J］. Enviro Sci Pollut Res, 2020, 27(26): 32371-32388.
［4］Li H, Zhang B, Wu Y. Highly efficient removal of emulsified oil from oily wastewater by microfiltration carbon membranes made from phenolic resin/coal ［J］. Environ Technol, 2024, 45(18): 3692-3705.
［5］王虹, 蔡超逸, 韩静, 等. 多通道活性炭基导电炭膜的制备及其对盐酸四环素废水的降解性能［J］. 天津工业大学学报, 2025, 44(2): 37-42.
［6］Nie L, Chuah C Y, Bae T H, et al. Graphene-based advanced membrane applications in organic solvent nanofiltration ［J］. Adv Funct Mater, 2021, 31(6): 2006949.
［7］Wu Y, Guo S, Huang H, et al. An efficient immersing strategy for enhancing the separation performance of microfiltration carbon membranes for oily wastewater ［J］. Surf Interfaces, 2023, 41: 103274.
［8］Li H, Wu Y, Huang H, et al. Surface synthesis of a polyethylene glutaraldehyde coating for improving the oil removal from wastewater of microfiltration carbon membranes ［J］. J Water Process Eng, 2022, 47: 102724.
［9］曹美玉. 基于单宁酸@Fe3O4纳米颗粒的印染废水处理剂制备及研究［J］. 塑料助剂, 2025，(3): 18-21,54.
［10］Yu J, Hu X, Huang Y. A modification of the bubble-point method to determine the pore-mouth size distribution of porous materials ［J］. Sep Purif Technol, 2010, 70(3): 314-319.
［11］张怡雯, 许诚. 基于磁阿基米德法的石墨烯薄片密度差值测量［J］. 计量与测试技术, 2025, 51(1): 94-96.
［12］Yan W, Shi M, Dong C, et al. Applications of tannic acid in membrane technologies: A review ［J］. Adv Colloid Interface Sci, 2020, 284: 102267.
［13］Chen C, Yang H, Yang X, et al. Tannic acid: A crosslinker leading to versatile functional polymeric networks: A review ［J］. RSC Adv, 2022, 12(13): 7689-7711.
［14］Sharma A, Sakimoto N, Takanohashi T. Effect of binder amount on the development of coal-binder interface and its relationship with the strength of the carbonized coal-binder composite ［J］. Carbon Res Convers, 2018, 1(2): 139-146.
［15］Feng Z, Wang T, Lin Y, et al. A facile and scalable fabrication procedure for PVDF-PDA/PEI/SiO2 hollow fiber composite ultrafiltration membranes: Integration of co-deposition and cross-linking ［J］. Results Eng, 2024, 22: 102055.
［16］Wuttke S, Medina D D, Rotter J M, et al. Bringing porous organic and carbon-based materials toward thin-film applications ［J］. Adv Funct Mater, 2018, 28(44): 1801545.
［17］Weragoda D M, Tian G, Cai Q, et al. Effects of pore morphology and topography on the wettability transition of metal porous structures exposed to ambient air ［J］. Multiscale Multi Mod, 2025, 8(5): 249.
［18］Kaghazchi L, Naderi R, Ramezanzadeh B. Construction of a high-performance anti-corrosion film based on the green tannic acid molecules and zinc cations on steel: Electrochemical/surface investi-gations ［J］. Constr Build Mater, 2020, 262: 120861.
［19］Li J, Shao X, Zhang B, et al. Hydrophilic surface modification of carbon black through a mussel-inspired reaction of tannic acid and diethlyenetriamine ［J］. Colloid Polym Sci, 2022, 300(9): 1017-1025.
［20］Nagarajan V, Chandiramouli R. Cyclohexane and n-hexane adsorption studies on novel hex-star antimonene nanosheets - A first-principles outlook ［J］. Inorg Chem Commun, 2022, 144: 109823.
［21］Idriss I M, Hashmi Z, Shamsuddin N, et al. Tannic acid in membrane technology: Sustainable fabrication for fouling mitigation in water purification ［J］. Sep Purif Technol, 2025, 379: 134925.
［22］Kinfu H H, Rahman M M. Separation performance of membranes containing ultrathin surface coating of metal-polyphenol network ［J］. Membranes, 2023, 13(5): 481.
［23］Mulyati S, Aprilia S, Muchtar S, et al. Fabrication of polyvinylidene difluoride membrane with enhanced pore and filtration properties by using tannic acid as an additive ［J］. Polymers, 2022, 14(1): 186.
［24］闫江毅, 丁一汇, 李风亭. 碳纳米管功能化改性的研究进展［J］. 低碳化学与化工, 2024, 49(10): 1-10.
［25］Zhang R, Zhao J, Ye J, et al. Role of tea polyphenols in enhancing the performance, sustainability, and catalytic cleaning capability of membrane separation for water-soluble pollutant removal ［J］. J Hazard Mater, 2024, 468: 133793.

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