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超浸润木基生物质多孔材料用于油水分离研究进展

丁一 冯树 梅泽楷 孔凡功 戴红旗 杨伟胜

丁一, 冯树, 梅泽楷, 等. 超浸润木基生物质多孔材料用于油水分离研究进展[J]. 复合材料学报, 2024, 42(0): 1-13.
引用本文: 丁一, 冯树, 梅泽楷, 等. 超浸润木基生物质多孔材料用于油水分离研究进展[J]. 复合材料学报, 2024, 42(0): 1-13.
DING Yi, FENG Shu, MEI Ze-kai, et al. Supersaturated wood-based biomass porous materials for oil/water separation[J]. Acta Materiae Compositae Sinica.
Citation: DING Yi, FENG Shu, MEI Ze-kai, et al. Supersaturated wood-based biomass porous materials for oil/water separation[J]. Acta Materiae Compositae Sinica.

超浸润木基生物质多孔材料用于油水分离研究进展

基金项目: 生物基材料与绿色造纸国家重点实验室开放基金资助项目(GZKF202220);2022年大学生实践创新训练计划项目(202210298006Z)
详细信息
    通讯作者:

    杨伟胜,讲师,硕士生导师,研究方向为木材功能化应用 E-mail:wys123@njfu.edu.cn

  • 中图分类号: X52;TB332

Supersaturated wood-based biomass porous materials for oil/water separation

Funds: The Foundation (No. GZKF202220) of State Key Laboratory of Biobased Material and Green Papermaking; 2022 Training Program of Innovation and Entrepreneurship for Undergraduates (No. 202210298006Z)
  • 摘要: 餐厨垃圾和工业废水中油和水的高效分离仍具挑战性。传统的油水分离技术主要包括重力沉降、离心、吸附、浮选和电化学等,存在着分离效率低、分离不彻底等问题。如何高效且低成本地实现油水分离已成为当前研究的热点。木材是一种可持续发展的生物材料,并且自身具有多级孔隙结构和丰富羟基官能团,其衍生物具备超浸润特性,因此其有望成为一种新型的油水分离材料。通过优化木材内部细胞孔径,对其进行超疏水或超亲水表面润湿性改性,进而促进木质基复合材料对油水混合乳液的物理化学过滤和吸附,最终实现废水中油污的有效去除。本文对油水混合物及含油废水的特性及危害进行了概述,并系统综述了具有超浸润特性(超亲水/水下超疏油、超疏水/超亲油)的木基多孔过滤膜和吸附材料用于分离含油废水的构建策略,概述了近年来具有超浸润特性的木基生物质多孔材料在油水分离领域的研究进展,并展望了这种材料存在的问题和未来潜在的研究方向。

     

  • 图  1  (a)水包油乳液; (b)油包水乳液[14]

    Figure  1.  (a) Oil-in-water emulsion; (b) Water-in-oil emulsion[14]

    图  2  (a) 木材细胞壁的分层结构[25]; (b) 英国橡木(栎)阔叶木的扫描电镜(SEM)图像; (c) 苏格兰松(樟子松)针叶木的SEM图像[15];(d)吸附法油水分离原理图[26]; (e) 过滤法油水分离原理图[27]

    Figure  2.  (a) Hierarchical structure of wood cell wall[25]; (b) Scanning electron microscope (SEM) image of English oak (Quercus serrata) broadleaf wood;(c) SEM image of Scots pine (Cinnamomum camphora) coniferous wood [15]; (d) schematic diagram of the adsorption method of oil-water separation [26]; (e) schematic diagram of the filtration method of oil-water separation[27].

    图  3  (a) 天然木材和 (b) 木膜的实物和扫描电镜图像(径向切向面和纵向切向面);(c) 使用木基过滤膜分离乳化油图片; (d) 乳化油分离前后效果图[2];(e) Ag/木材过滤膜从水中去除有机染料MB; (f) 过滤有机染料MB后的木基材料横切面图片; (g) Ag NPs在木材管孔内对MB的催化降解示意图[30];(h) 原巴尔沙木和Ag@Wood反复过滤MB溶液前后的照片[6]

    Figure  3.  (a) Physical and SEM images (radial tangential plane and longitudinal tangential plane) of natural wood and (b) wood membranes; (c) Pictures of emulsified oil separation using wood-based filtration membranes; (d) Before and after effect of emulsified oil separation[2]; (e) Removal of organic dyes MB from water by Ag/wood filtration membranes; (f) Pictures of cross-sections of the wood-based materials after filtration of organic dyes MB; (g) Schematic diagram of the Ag NPs in the catalytic degradation of MB within the pores of wood tubes[30]; (h) Photographs of raw balsa wood and Ag@Wood before and after repeated filtration of MB solution [6].

    图  4  (a) 真空浸渍和表面改性后的超疏水木片制备工艺和油水乳液分离示意图; (b) 超疏水木材切片的表面FE-SEM图像[31]; (c) PDVB-wood膜对酸、碱、盐、水、可乐、咖啡、油等的润湿效果图; (d) PDVB-wood膜和天然木片的柔韧性对比图[40]; (e) PDMS@TiO2木材的制备过程和对油水混合物的分离效率统计图[34]

    Figure  4.  (a) Schematic diagram of the preparation process and oil-water emulsion separation of superhydrophobic wood slices after vacuum impregnation and surface modification; (b) Surface FE-SEM images of the superhydrophobic wood slices[31]; (c) Wetting effect diagram of PDVB-wood membranes on acids, alkalis, salts, water, cola, coffee, and oils, etc.; (d) Comparison of flexibility between the PDVB-wood membranes and natural wood slices[40]; ( e) Statistical graph of the preparation process and separation efficiency of PDMS@TiO2 wood for oil-water mixtures[34].

    图  5  (a) BW/PSP膜的油/水分离工艺[27] ; (b) Janus木膜对油水混合物的选择性分离; (c) Janus木膜HO(疏水)表面和HI(亲水)表面实物图片; (d) Janus木膜HO表面分别对油和水的接触角; (e) Janus木膜HI表面的水下超疏油图片[36]

    Figure  5.  (a) Oil/water separation process with BW/PSP membranes[27]; (b) Selective separation of oil-water mixtures by Janus wood membranes; (c) Physical pictures of the HO (hydrophobic) surface and the HI (hydrophilic) surface of Janus wood membranes; (d) Contact angle of the HO surface of Janus wood membranes for oil and water, respectively; (e) Picture of the underwater super-hydrophobicity of the HI surface of Janus wood membranes[36].

    图  6  (a) 木基海绵和硅烷化木基海绵润湿性对比图; (b) 不同木材样品及木基海绵的红外光谱; (c) 通过化学成分分析获得的不同木材样品及纤维素木基海绵中纤维素、半纤维素和木质素的相对含量[43]; (d) Wood/COF的制造工艺示意图[26]; (e) 25℃ 和70℃下原油的黏度及PDMS@GSH木基材料对高黏度原油的吸附图片[45]

    Figure  6.  (a) Comparison of the wettability of wood-based sponges and silanised wood-based sponges; (b) Infrared spectra of different wood samples and wood-based sponges; (c) Relative contents of cellulose, hemicellulose, and lignin in different wood samples and cellulose-based wood-based sponges obtained by chemical composition analysis[43]; (d) Schematic diagram of the fabrication process of Wood/COF [26]; (e) At 25℃ and 70℃ (f) Viscosity of crude oil and adsorption pictures of PDMS@GSH wood-based materials on high viscosity crude oil [45].

    表  1  过滤型木基油水分离材料性能对比

    Table  1.   Comparison of the performance of filtered wood-based oil-water separation materials

    Bibliography Oil-water separation method Separation efficiency % Fluxes /(L·m−2·h−1) Cycles/times
    Wang et al.[29] Cetane/water mixture 99.90 3500 not mentioned
    Kim et al.[2] Oil/water mixtures 99.42 462 10/ efficiency maintained at 99%
    Cheng et al.[30] Oil/water mixtures 99.00 2600 not mentioned
    Du et al.[6] Oil/water mixtures 98.89 4776 not mentioned
    Bai et al.[31] Oil/water mixtures 98.00 11 6/ efficiency maintained at 98%
    Zhou et al.[32] Chloroform/water mixture 99.20 460 10/ efficiency maintained at 98.7%
    Cai et al.[33] Hexane/water mixture 99.98 8829 20/ efficiency maintained at 99.98%
    Chen et al.[34] Toluene/water mixture 93.40 4889 not mentioned
    Ma et al.[35] Oil/water mixtures 97.50 not mentioned not mentioned
    Che et al.[36] Toluene/water mixture 99.00 470 not mentioned
    下载: 导出CSV

    表  2  吸附型木基油水分离材料性能对比

    Table  2.   Comparison of performance of adsorbent wood-based oil-water separation materials

    Bibliography Oil-water separation method Water/oil absorption /(g·g-1) Cycles/times
    Wu et al.[42] Crude oil/water mixtures 15.0 12
    Guan et al.[43] Silicone oil/water mixture 41.0 not mentioned
    Cheng et al.[44] Dichloromethane/water mixture 5.2 11-14
    Xu et al.[26] Cyclohexane/water mixture 930.0 20
    Chen et al.[45] Crude oil/water mixtures 1.8 not mentioned
    Wang et al.[46] Crude oil/water mixtures 11.2 10
    下载: 导出CSV
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  • 收稿日期:  2024-01-30
  • 修回日期:  2024-03-26
  • 录用日期:  2024-04-04
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