期刊
ACS APPLIED MATERIALS & INTERFACES
卷 9, 期 37, 页码 32255-32263出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsami.7b09680
关键词
Polyamide; tannic acid; nanocomposite; interfacial polymerization; carbon nanotubes
资金
- high-level talents support plan of the Xiamen University of Technology [YKJ16001R, YKJ1403SR]
- Open Fund Project Innovation Platform of State Key Laboratory of Molecular Engineering of Polymers (Fudan University) [K2017-29]
- Open Fund Project Innovation Platform of University in Hunan Province, China [20161006]
- National Natural Science Foundation of China [11372108]
Tannic acid-Fe-III functionalized multiwall carbon nanotubes (TA-MWNTs) were successfully obtained through a simple and rapid procedure by forming a stable TA-Fe-III complex coating on the MWNT surface. Hydrophilic TA-MWNTs can disperse well in the aqueous phase and help the formation of a polyamide (PA) thin film nanocomposite (TFN) membrane through interfacial polymerization. TA-MWNT concentration in the aqueous phase was adjusted to achieve the optimal water flux and salt rejection of the TFN membrane. The results reveal that, when 0.03% of TA-MWNTs are added, the optimized water flux of the TFN membrane reaches up to 31.4 L/m(2)h, 2.36 times of that of the neat PA membrane, along with a well-maintained Na2SO4 rejection. Furthermore, the as-prepared TFN membrane shows improved antifouling ability and good long-term stability. A significantly enhanced chlorine resistant capability of the TFN membrane is also presented, which can be ascribed to the radical capturing capability of phenol groups of TA as well as more oxidation-stable polyester bonds produced by the interaction between the phenol groups of TA and the acyl chloride groups of TMC. Assisted by TA-MWNTs, the TFN membrane is found to have prominent advantages over PA and MWNTs/PA TFN membranes.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据