Korean Journal of Chemical Engineering, Vol.36, No.1, 92-100, January, 2019
Hierarchical Al2O3/SiO2 fiber membrane with reversible wettability for on-demand oil/water separation
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This work presents an effective method of fabricating hierarchical Al2O3/SiO2 fiber membrane with reversible wettability for on-demand oil/water separation. In this strategy, the superhydrophilic/underwater superoleophobic surfaces are fabricated by in-situ growing hierarchical Al2O3 nanosheets on the SiO2 fiber surfaces that can be used as water-removing materials for oil/water separation. Then, the superhydrophobic/oleophilic surfaces are obtained by surface chemical modification with sodium laurate, which can be used as oil-removing materials for oil/water separation. Interestingly, the reversible wettability transformation of Al2O3/SiO2 fiber membrane can be controlled by the annealing and modification treatment alternately. The as-prepared Al2O3/SiO2 fiber membrane, combining the advantages and overcoming disadvantages of two modes, achieves reversible wettability transitions and on-demand oil/water separation. In addition, the Al2O3/SiO2 fiber membrane shows a significant chemical stability and super-wettability even after five annealing and surface modification cycles, indicating its excellent durability. The separation efficiency in both oil-removing mode and water-removing mode is over 95% for various oil/water mixtures through multiple recycle separation processes. This work not only provides a simple and cost-effective method to fabricate separation membrane with reversible wettability, but also shows great potential in remediation of large-scale oil spillage or organic solvents discharge at different environmental conditions.
Keywords:Al2O3 Nanosheets Coating;Fiber Membrane;Reversible Wettability;Oil/Water Separation;Recyclability
- Yuan DS, Zhang T, Guo Q, Qiu FX, Yang DY, Ou ZP, Chem. Eng. J., 327, 539 (2017)
- Yue XJ, Zhang T, Yang DY, Qiu FX, Li ZD, Ind. Eng. Chem. Res., 57(31), 10439 (2018)
- Yue X, Zhang T, Yang D, Qiu F, L Zi, J. Clean Prod., 199, 411 (2018)
- Yue XJ, Zhang T, Yang DY, Qiu FX, Rong J, Xu JC, Fang JS, Chem. Eng. J., 309, 522 (2017)
- Zhang T, Kong LY, Dai YT, Yue XJ, Rong J, Qiu FX, Pan JM, Chem. Eng. J., 309, 7 (2017)
- Liu SC, Pan JM, Zhu HJ, Pan GQ, Qiu FX, Meng MJ, Yao JT, Yuan D, Chem. Eng. J., 290, 220 (2016)
- Yue XJ, Li JX, Zhang T, Qiu FX, Yang DY, Xue MW, Chem. Eng. J., 328, 117 (2017)
- Zhang F, Zhang WB, Shi Z, Wang D, Jin J, Jiang L, Adv. Mater., 25(30), 4192 (2013)
- Xue Z, Cao Y, Liu N, Feng L, Jiang L, J. Mater. Chem. A, 2, 2445 (2014)
- Liu H, Raza A, Aili A, Lu J, AlGhaferi A, Zhang T, Sci. Rep., 6, 25414 (2016)
- Jo S, Kim Y, Korean J. Chem. Eng., 33(11), 3203 (2016)
- Wen Q, Di J, Jiang L, Yu J, Xu R, Chem. Sci., 4, 591 (2013)
- Chen PC, Xu ZK, Sci. Rep., 3, 2776 (2013)
- Yue X, Zhang T, Yang D, Qiu F, Li Z, Cellulose, 25, 5951 (2018)
- Che H, Huo M, Peng L, Fang T, Liu N, Feng L, Wei Y, Yuan J, Angew. Chem.-Int. Edit., 54, 8934 (2015)
- Du X, You SJ, Wang XH, Wang QR, Lu JD, Chem. Eng. J., 313, 398 (2017)
- Liu Y, Zhan B, Zhang KT, Kaya C, Stegmaier T, Han ZW, Ren LQ, Chem. Eng. J., 331, 278 (2018)
- Gu J, Xiao P, Chen J, Zhang J, Huang Y, Chen T, ACS Appl. Mater. Interfaces, 6, 16204 (2014)
- Yang HC, Hou J, Chen V, Xu ZK, Angew. Chem.-Int. Edit., 55, 13398 (2016)
- Ma WJ, Samal SK, Liu ZC, Xiong RH, De Smedt SC, Bhushan B, Zhang QL, Huang CB, J. Membr. Sci., 537, 128 (2017)
- Wagner N, Theato P, Polymer, 55(16), 3436 (2014)
- Xiang YH, Wang YZ, Lin HB, Wang Y, Xiong Z, Liu F, React. Funct. Polym., 97, 86 (2015)
- Kota AK, Kwon G, Choi W, Mabry JM, Tuteja A, Nat. Commun., 3, 1025 (2012)
- Lu C, Urban MW, Prog. Polym. Sci, 78, 24 (2018)
- Liu CT, Liu YL, J. Mater. Chem. A, 4, 13543 (2016)
- Miao YE, Wang R, Chen D, Liu Z, Liu T, ACS Appl. Mater. Interfaces, 4, 5353 (2012)
- Gao S, Huang J, Li S, Liu H, Li F, Li Y, Chen G, Lai Y, Mater. Des., 128, 1 (2017)
- Yue X, Zhang T, Yang D, Qiu F, Zhu Y, Fang J, J. Ind. Eng. Chem., 61, 188 (2018)