Preparation thin film nanocomposite membrane incorporating PMMA modified MWNT for nanofiltration
Multiwalled carbon nanotubes (MWNTs) grafted by Poly(methyl methacrylate) (PMMA) can well disperse in organic solutions like toluene,which were synthesized via a microemulsion polymerization of methyl methacrylate (MMA) in the presence of acid-modified multiwalled carbon nanotubes (c-MWNTs).The polyamide thin-film nanocomposite (TFN) membranes with embedded PMMA-MWNTs were prepared using piperazine (PIP) and trimesoyl chloride (TMC) on a polyacrylonitrile (PAN) porous substrate via interfacial polymerization for selective permeability.PMMA-MWNTs’ structure was analyzed by Fourier transform infrared spectrophotometry (FTIR),Raman spectrophotmetry (RAM),Scanning electron microscope (SEM) and thermo gravimetric analysis (TGA).Orthogonal experiment was used to study the effect of PIP concentration,TMC concentration and concentration of PMMA-MWNTs in organic phase.The results showed that the membrane performances is good,Na2SO4 rejection is above 98% and water flux is up to 150% improvement over the TFC membrane as PIP in aqueous phase was 2g/L,TMC and PMMA-MWNTs in organic phase were 4g/L and 0.67g/L,respectively.Demonstrated PMMA-MWNTs in the nanofiltration membrane can improve selective permeability.
Polyamide thin-film nanocomposite (TFN) membranes Multiwalled carbon nanotubes Interfacial polymerization
Chang-chao Yu Hong-wei Yu Yue-xia Chu Hui-min Ruan Jiang-nan Shen
College of Chemical Engineering and Materials Science, Zhejiang University of Technology, Hangzhou 310014,China
国际会议
中国微米纳米技术学会第14届学术年会、第3届国际年会暨第6届微米纳米技术“创新与产业化国际研讨与展览会(CSMNT2012 & ICMAN2012)
杭州
英文
1-5
2012-11-04（万方平台首次上网日期，不代表论文的发表时间）