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Membranes
Volume 11
Issue 2
10.3390/membranes11020142
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Article

The Permeability and Selectivity of the Polyamide Reverse Osmosis Membrane were Significantly Enhanced by PhSiCl3

by
Junjie Yu
,
Kaifeng Gu
,
Binbin Yang
,
Kaizhen Wang
,
Yong Zhou
* and
Congjie Gao
Center for Membrane and Water Science & Technology, Zhejiang University of Technology, Hangzhou 310014, China
*
Author to whom correspondence should be addressed.
Membranes 2021, 11(2), 142; https://doi.org/10.3390/membranes11020142
Submission received: 23 January 2021 / Revised: 10 February 2021 / Accepted: 11 February 2021 / Published: 18 February 2021
(This article belongs to the Section Polymeric Membranes)
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Abstract

The work briefly introduces the nano-composite reverse osmosis (RO) membrane with more permeability and selective performance, and we adopted the phenyltrichlorosilane precursor with better chemical stability and greater spatial resistance. The phenyltrichlorosilane concentration was mainly discussed in this work. The in-situ hydrolysis of phenyltrichlorosilane and the occurrence of ammonia hydrolysis make it effectively incorporated into the polyamide film. The covalent bond and hydrogen bond of phenyltrichlorosilane and polyamide (PA) can be realized. The phenyl group can extend in the polyamide polymer network and give the film corresponding functions. There will be fewer non-selective defects between phenyltrichlorosilane and PA. Under the premise of maintaining the water-salt selectivity of the membrane, along with the increase of benzene trichlorosilane loading, the 300% pure water flux can be achieved and the desalination rate remains at 98.1–98.9%. This reverse osmosis (RO) is suitable for household water purification.
Keywords: polyamide film; phenyltrichlorosilane; situ hydrolysis; ammonia hydrolysis polyamide film; phenyltrichlorosilane; situ hydrolysis; ammonia hydrolysis

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MDPI and ACS Style

Yu, J.; Gu, K.; Yang, B.; Wang, K.; Zhou, Y.; Gao, C. The Permeability and Selectivity of the Polyamide Reverse Osmosis Membrane were Significantly Enhanced by PhSiCl3. Membranes 2021, 11, 142. https://doi.org/10.3390/membranes11020142

AMA Style

Yu J, Gu K, Yang B, Wang K, Zhou Y, Gao C. The Permeability and Selectivity of the Polyamide Reverse Osmosis Membrane were Significantly Enhanced by PhSiCl3. Membranes. 2021; 11(2):142. https://doi.org/10.3390/membranes11020142

Chicago/Turabian Style

Yu, Junjie, Kaifeng Gu, Binbin Yang, Kaizhen Wang, Yong Zhou, and Congjie Gao. 2021. "The Permeability and Selectivity of the Polyamide Reverse Osmosis Membrane were Significantly Enhanced by PhSiCl3" Membranes 11, no. 2: 142. https://doi.org/10.3390/membranes11020142

APA Style

Yu, J., Gu, K., Yang, B., Wang, K., Zhou, Y., & Gao, C. (2021). The Permeability and Selectivity of the Polyamide Reverse Osmosis Membrane were Significantly Enhanced by PhSiCl3. Membranes, 11(2), 142. https://doi.org/10.3390/membranes11020142

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