Affiliation: | 1. School of Textile Science and Engineering, Tiangong University, No. 399, Binshui Road, Xiqing District, Tianjin, 300387 People's Republic of China
State Key Laboratory of Separation Membranes and Membrane Processes, Tiangong University, No. 399, Binshui Road, Xiqing District, Tianjin, 300387 People's Republic of China;2. School of Textile Science and Engineering, Tiangong University, No. 399, Binshui Road, Xiqing District, Tianjin, 300387 People's Republic of China;3. State Key Laboratory of Separation Membranes and Membrane Processes, Tiangong University, No. 399, Binshui Road, Xiqing District, Tianjin, 300387 People's Republic of China
School of Material Science and Engineering, Tiangong University, No. 399, Binshui Road, Xiqing District, Tianjin, 300387 People's Republic of China |
Abstract: | In this study, the cost-effective graphite powder (GPd)-coated polyurethane (PGPd-PU) sponge hollow tube (PGPd-PUHT) was prepared for high-efficient continuous oil removal, the hydrophobicity-superoleophilicity PGPd-PU sponge was fabricated through a simple dip-coating method, which dipping PU sponge into GPd dispersion and drying, then coating polydimethylsiloxane (PDMS) on sponge skeleton, as-prepared sponge could selectively absorb a variety of oils up to 34 times of its own weight for dimethyl sulfoxide (DMSO). The PGPd-PUHT was prepared via wrapping PGPd-PU sponge on porous tubular support. The obtained PGPd-PUHT could continuously collect various types of oils from water surface with flux as high as 1.52 kL/m2h, and excellent separation efficiency (up to 97.7%) for toluene, as well as remarkable reusability. Moreover, a continuous floating oil collection device based on PGPd-PUHT was designed which showed excellent floating oil collection ability. In addition, our strategy possesses the advantages of low cost, simple preparation, highly efficient, and easily scale-up, showing a great potential for dealing with practical oil spill remediation. © 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2020 , 137, 48921. |