Sustainable, superhydrophobic membranes based on bacterial cellulose for gravity-driven oil/water separation

被引：96
作者：
Wang, Feng-ping [1 ,2 ]
Zhao, Xiang-jun [1 ,2 ]
Wahid, Fazli [1 ,2 ]
Zhao, Xue-qing [1 ,2 ]
Qin, Xiao-tong [1 ,2 ]
Bai, He [3 ]
Xie, Yan-yan [1 ,2 ]
Zhong, Cheng [1 ,2 ]
Jia, Shi-ru [1 ,2 ]
机构：
[1] Tianjin Univ Sci & Technol, State Key Lab Food Nutr & Safety, Tianjin, Peoples R China
[2] Tianjin Univ Sci & Technol, Minist Educ, Key Lab Ind Fermentat Microbiol, Tianjin, Peoples R China
[3] China Offshore Environm Serv Ltd, Tianjin 300457, Peoples R China
来源：
CARBOHYDRATE POLYMERS | 2021年 / 253卷
基金：
中国国家自然科学基金;
关键词：
Bacterial cellulose; Needle-leaf bleached kraft pulp; Superhydrophobic membrane; Oil/water separation; WATER-REPELLENT; OIL; FABRICATION; STEARATE; SURFACE; NANOCOMPOSITES; PERFORMANCE; ABSORPTION; RESISTANCE; AEROGELS;
D O I：
10.1016/j.carbpol.2020.117220
中图分类号：
O69 [应用化学];
学科分类号：
081704 ;
摘要：
Bacterial cellulose (BC) is a substrate material with high purity and robust mechanical strength, but due to its small pore size and relatively expensive price, it is restricted as an oil-/water separation membrane. In this study, cheaper plant cellulose needle-leaf bleached kraft pulp (NBKP) was added to BC to increase the pore size of the composite membrane, and a superhydrophobic/superoleophilic membrane was prepared for oil-/water separation. The modified membrane surface displayed a petal-like micro-structure and a water contact angle (WCA) of 162.3 degrees, while the oil contact angle was decreased to 0 degrees. What's more, the membrane exhibited excellent oil-/ water separation under gravity, recyclability, and a separation efficiency (>95 %), and it was both pH and salt resistant. The membrane also remained durably hydrophobic after 10 separation cycles. And the separation methodology is expected to be highly energy-efficient.
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页数：9
相关论文
共 48 条
[1]  
Ashrafi Z., 2019, SOFT MATTER
[2]   Preparation of superhydrophobic and superoleophilic cotton-based material for extremely high flux water-in-oil emulsion separation [J].
Ejeta, Dula Daksa ;
Wang, Chih-Feng ;
Kuo, Shiao-Wei ;
Chen, Jem-Kun ;
Tsai, Hsieh-Chih ;
Hung, Wei-Song ;
Hu, Chien-Chieh ;
Lai, Juin-Yih .
CHEMICAL ENGINEERING JOURNAL, 2020, 402
[3]   Directly Coating Hydrogel on Filter Paper for Effective Oil-Water Separation in Highly Acidic, Alkaline, and Salty Environment [J].
Fan, Jun-Bing ;
Song, Yongyang ;
Wang, Shutao ;
Meng, Jingxin ;
Yang, Gao ;
Guo, Xinglin ;
Feng, Lin ;
Jiang, Lei .
ADVANCED FUNCTIONAL MATERIALS, 2015, 25 (33) :5368-5375
[4]   Preparation and characterization of bacterial cellulose sponge with hierarchical pore structure as tissue engineering scaffold [J].
Gao, Chuan ;
Wan, Yizao ;
Yang, Chunxi ;
Dai, Kerong ;
Tang, Tingting ;
Luo, Honglin ;
Wang, Jiehua .
JOURNAL OF POROUS MATERIALS, 2011, 18 (02) :139-145
[5]   Controlled Synthesis of Coral-Like CuO Dendrites with Enhanced Photocatalytic Performance [J].
Gao, Feng ;
Wu, Yi ;
He, Xiang-Fei ;
Yin, Jia-Xuan ;
Qin, Li-Zhao ;
Li, Qing .
JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY, 2020, 20 (08) :5028-5036
[6]   Rational design of materials interface at nanoscale towards intelligent oil-water separation [J].
Ge, Mingzheng ;
Cao, Chunyan ;
Huang, Jianying ;
Zhang, Xinnan ;
Tang, Yuxin ;
Zhou, Xinran ;
Zhang, Keqin ;
Chen, Zhong ;
Lai, Yuekun .
NANOSCALE HORIZONS, 2018, 3 (03) :235-260
[7]   Highly Efficient Air Desulfurization on Self-Assembled Bundles of Copper Hydroxide Nanorods [J].
Giannakoudakis, Dimitrios A. ;
Jiang, Mingyung ;
Bandosz, Teresa J. .
ACS Applied Materials & Interfaces, 2016, 8 (46) :31986-31994
[8]   Fabrication of cellulose nanofiber-deposited cellulose sponge as an oil-water separation membrane [J].
Halim, Abdul ;
Xu, Yinchao ;
Lin, Kuan-Hsuan ;
Kobayashi, Motoyoshi ;
Kajiyama, Mikio ;
Enomae, Toshiharu .
SEPARATION AND PURIFICATION TECHNOLOGY, 2019, 224 :322-331
[9]  
Helmer D., 2017, SCI REPORTS, V7
[10]  
Hou Y., 2019, J MEMBRANE SCI, V591
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