ACS Appl Mater Interfaces:新型复合材料可用于临床抗菌应用

2019-06-15 不详 网络

多功能薄膜纳米复合材料(MTFN)膜通过将还原氧化石墨烯@ TiO2 @ Ag(rGO @ TiO2 @ Ag)的新型纳米复合材料结构加入聚酰胺活动层中制成,实现了高脱盐性能,染料保留和抗菌性能。通过微波辅助辐照工艺合成的石墨烯基纳米复合材料的特性有利于水通道化,并为MTFN膜提供超亲水性和抗菌性。与常规方法相比,例如使用强还原剂和长期耗能水热法的多步化学方法,微波辐射促进了用于制备用于多功能应用

多功能薄膜纳米复合材料(MTFN)膜通过将还原氧化石墨烯@ TiO2 @ Ag(rGO @ TiO2 @ Ag)的新型纳米复合材料结构加入聚酰胺活动层中制成,实现了高脱盐性能,染料保留和抗菌性能。通过微波辅助辐照工艺合成的石墨烯基纳米复合材料的特性有利于水通道化,并为MTFN膜提供超亲水性和抗菌性。

与常规方法相比,例如使用强还原剂和长期耗能水热法的多步化学方法,微波辐射促进了用于制备用于多功能应用的GO基纳米复合材料的绿色,快速且成本有效的途径。使用间苯二胺(m-PDA)水溶液和1,3,5-苯三羰基三氯化物(TMC)有机溶液在聚醚砜(PES)/ Si3N4耐久中空纤维基材上进行界面聚合。通过一系列表征分析(TEM,FE-SEM,XRD,FTIR,EDX,XPS和AFM)彻底研究了合成的纳米复合材料和MTFN膜的结构和化学特性。

在加入各种浓度的rGO@TiO2@Ag后,研究了MTFN膜的物理化学性质和纳滤性能。水接触角证实了MTFN膜的优异表面亲水性。对于富含0.2wt% rGO @ TiO2 @ Ag的 MTFN,具有高渗透性(52Lm-2.h-1),脱盐(对于1g / L Na 2 SO 4进料溶液为96%)和染料保留(对于0.5g / L玫瑰红进料溶液为98%)。在与MTFN膜接触3小时后,活细菌(大肠杆菌)数量减少90%,证实了所产生的膜具有优异的抗菌活性。

原始出处:

Abadikhah H, Naderi Kalali E, et al., Multifunctional Thin Film Nanofiltration Membrane Incorporated with Reduced Graphene Oxide@TiO2@Ag Nanocomposites for High Desalination Performance, Dye Retention, and Antibacterial Properties. ACS Appl Mater Interfaces. 2019 Jun 14. doi: 10.1021/acsami.9b03557.

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    2019-08-17 shanyongle
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    2019-06-17 yaanren
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