A chlorine-tolerant nanofiltration membrane prepared by the mixed diamine monomers of PIP and BHTTM

Tang, Yong‐Jian; Xu, Zejun; Xue, Shuang-Mei; Wei, Yong-Min; Yang, Hu

doi:10.1016/j.memsci.2015.10.028

Cited by 111 publications

(29 citation statements)

References 32 publications

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“…PWF and Na 2 SO 4 rejection were recorded every 1 h, and the detailed results are shown in Figure . The PIP–BHTTM membrane showed good resistance to chlorine, as proven in our previous work . However, the salt rejection of the PIP–BHTTM membrane in this study was a little lower than before, and PWF showed a reverse trend.…”

Section: Resultssupporting

confidence: 76%

High‐performance composite nanofiltration membranes fabricated via ternary mixture: Complementary preponderance of the fluorine‐containing monomer 2,2′‐bis(1‐hydroxyl‐1‐trifluoromethyl‐2,2,2‐triflutoethyl)‐4,4′‐methylene dianiline and the rigid monomer bisphenol F

Tang

Ding

et al. 2018

J of Applied Polymer Sci

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In a previous study, we proved that tailoring the polyamide backbone stiffness is an effective way to fabricate high‐performance polyamide nanofiltration (NF) membranes. However, in the previous study, we mainly focused on the flat membrane and did not consider its chlorine tolerance. In this study, by regulating the aqueous‐phase compositions in the interfacial polymerization process, chlorine tolerance on NF hollow‐fiber membranes was endowed while the membrane performance stayed high. The experimental results show that when the ratio of Piperazine (PIP)–bisphenol F (BPF)/2,2′‐bis(1‐hydroxyl‐1‐trifluoromethyl‐2,2,2‐triflutoethyl)‐4,4′‐methylene dianiline (BHTTM) was 5:1:4, the NF membrane possessed a permeate flux of 21.0 L m−2 h−1 bar−1 and an Na2SO4 rejection up to 90.0%. X‐ray photoelectron spectroscopy analysis also confirmed that the polymerization degree of the PIP–BPF–BHTTM NF membrane was the highest. Moreover, the NF membrane could tolerate active chlorine to over 10,000 ppm h Cl. After the active chlorine treatment, the permeate flux increased over 30.0 L m−2 h−1 bar−1, and the Na2SO4 rejection was about 90.0%. Although the PIP–BHTTM NF membrane also possessed good chlorine tolerance, its permeate flux (after active chlorine treatment) was only 60% of that of the PIP–BPF–BHTTM NF membrane. Therefore, the PIP–BPF–BHTTM NF membrane possessed a combination of high flux and high chlorine tolerance and showed good potential in water treatment in rigorous environments. © 2018 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2018, 135, 46482.

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Section: Resultssupporting

confidence: 76%

High‐performance composite nanofiltration membranes fabricated via ternary mixture: Complementary preponderance of the fluorine‐containing monomer 2,2′‐bis(1‐hydroxyl‐1‐trifluoromethyl‐2,2,2‐triflutoethyl)‐4,4′‐methylene dianiline and the rigid monomer bisphenol F

Tang

Ding

et al. 2018

J of Applied Polymer Sci

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“…4d , see Supplementary Ref. 5 - 8 ), PA NF membranes prepared with various monomers 47 – 51 (marked as orange rhombus of 9–13 in Fig. 4d , see Supplementary Ref.…”

Section: Resultsmentioning

confidence: 99%

Nanoparticle-templated nanofiltration membranes for ultrahigh performance desalination

et al. 2018

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Nanofiltration (NF) membranes with ultrahigh permeance and high rejection are highly beneficial for efficient desalination and wastewater treatment. Improving water permeance while maintaining the high rejection of state-of-the-art thin film composite (TFC) NF membranes remains a great challenge. Herein, we report the fabrication of a TFC NF membrane with a crumpled polyamide (PA) layer via interfacial polymerization on a single-walled carbon nanotubes/polyether sulfone composite support loaded with nanoparticles as a sacrificial templating material, using metal-organic framework nanoparticles (ZIF-8) as an example. The nanoparticles, which can be removed by water dissolution after interfacial polymerization, facilitate the formation of a rough PA active layer with crumpled nanostructure. The NF membrane obtained thereby exhibits high permeance up to 53.5 l m−2h−1 bar−1 with a rejection above 95% for Na2SO4, yielding an overall desalination performance superior to state-of-the-art NF membranes reported so far. Our work provides a simple avenue to fabricate advanced PA NF membranes with outstanding performance.

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“…1,2 Despite that TFC NF membranes have been widely utilized in many industries, there are still substantial challenges for improving the permselectivity, 3,4 anti-biofouling 5 and chlorine resistance. 6,7 In order to address these challenges, thin-lm nanocomposite (TFN) membrane has been developed by incorporating an appropriate amount of nanomaterials in the bottom porous substrate 8,9 as well as in the top selective layer to enhance the TFC NF performance. 10,11 The obtained TFN membranes have shown considerable potential to overcome the uxrejection trade-off effect due to the unique features of.…”

Section: Introductionmentioning

confidence: 99%

Enhancing the performance of thin-film nanocomposite nanofiltration membranes using MAH-modified GO nanosheets

et al. 2017

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A chlorine-tolerant nanofiltration membrane prepared by the mixed diamine monomers of PIP and BHTTM

Cited by 111 publications

References 32 publications

High‐performance composite nanofiltration membranes fabricated via ternary mixture: Complementary preponderance of the fluorine‐containing monomer 2,2′‐bis(1‐hydroxyl‐1‐trifluoromethyl‐2,2,2‐triflutoethyl)‐4,4′‐methylene dianiline and the rigid monomer bisphenol F

High‐performance composite nanofiltration membranes fabricated via ternary mixture: Complementary preponderance of the fluorine‐containing monomer 2,2′‐bis(1‐hydroxyl‐1‐trifluoromethyl‐2,2,2‐triflutoethyl)‐4,4′‐methylene dianiline and the rigid monomer bisphenol F

Nanoparticle-templated nanofiltration membranes for ultrahigh performance desalination

Enhancing the performance of thin-film nanocomposite nanofiltration membranes using MAH-modified GO nanosheets

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