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首页> 外文期刊>Journal of Applied Polymer Science >High-fluxPVDF/PVPnanocomposite ultrafiltration membrane incorporated with graphene oxide nanoribbones with improved antifouling properties
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High-fluxPVDF/PVPnanocomposite ultrafiltration membrane incorporated with graphene oxide nanoribbones with improved antifouling properties

机译：高焊剂薄荷复合材料超滤膜与石墨烯氧化物纳米骨掺入，具有改善的防污性能

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摘要

A novel polyvinylidene fluoride (PVDF) nanocomposite membrane containing graphene oxide nanoribbones (GONRs) as a new nanofiller and polyvinylpyrrolidone (PVP) as pore former agent was prepared via phase inversion method. GONRs were prepared by oxidative unzipping of multi-walled carbon nanotubes (MWCNTs) via chemical approach. Chemical vapor deposition method was used to synthesis MWCNTs. The effects of adding GONRs and PVP into the casting solution on morphology, hydrophilicity and pure water flux (PWF) of the prepared nanocomposite membranes were explored. Antifouling experiments were also performed. It was found that compared to the neat PVDF membrane, PWF of the PVDF/PVP, PVDF/(0.5GONRs) and PVDF/(0.5GONRs)/PVP membranes were improved 80%, 44.9%, and 241.6%, respectively. The obtained results showed that GONRs and PVP exhibit synergistic effects in controlling the membrane properties. This work shows that GONRs can be suitable as nanofiller for preparation of high performance PVDF ultrafiltration membranes with improved antifouling properties.
机译：采用相转化法制备了一种新型聚偏氟乙烯（PVDF）纳米复合膜，其中氧化石墨烯纳米带（GONR）为新型纳米填料，聚乙烯吡咯烷酮（PVP）为成孔剂。通过化学方法对多壁碳纳米管（MWCNT）进行氧化解压制备GONR。采用化学气相沉积法合成了多壁碳纳米管。研究了在铸膜液中加入GONR和PVP对制备的纳米复合膜的形貌、亲水性和纯水通量（PWF）的影响。还进行了防污试验。结果发现，与纯PVDF膜相比，PVDF/PVP、PVDF/（0.5GONRs）和PVDF/（0.5GONRs）/PVP膜的PWF分别提高了80%、44.9%和241.6%。结果表明，GONR和PVP在控制膜性能方面表现出协同效应。这项工作表明，GONR可以作为纳米填料，用于制备高性能PVDF超滤膜，具有更好的防污性能。

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