SCI和EI收录∣中国化工学会会刊

中国化学工程学报 ›› 2020, Vol. 28 ›› Issue (3): 901-912.DOI: 10.1016/j.cjche.2019.09.011

• Materials and Product Engineering • 上一篇    下一篇

Hydrophilic polymeric membrane supported on silver nanoparticle surface decorated polyester textile: Toward enhancement of water flux and dye removal

Marziyeh Mofradi1, Hajir Karimi1, Mehrorang Ghaedi2   

  1. 1 Chemical Engineering Department, Yasouj University, Yasouj, Iran;
    2 Chemistry Department, Yasouj University, Yasouj, Iran
  • 收稿日期:2019-05-28 修回日期:2019-08-20 出版日期:2020-03-28 发布日期:2020-06-11
  • 通讯作者: Hajir Karimi, Mehrorang Ghaedi

Hydrophilic polymeric membrane supported on silver nanoparticle surface decorated polyester textile: Toward enhancement of water flux and dye removal

Marziyeh Mofradi1, Hajir Karimi1, Mehrorang Ghaedi2   

  1. 1 Chemical Engineering Department, Yasouj University, Yasouj, Iran;
    2 Chemistry Department, Yasouj University, Yasouj, Iran
  • Received:2019-05-28 Revised:2019-08-20 Online:2020-03-28 Published:2020-06-11
  • Contact: Hajir Karimi, Mehrorang Ghaedi

摘要: A novel mixed matrix nanofiltration membrane was constructed by coating a casting solution containing polyvinylidene fluoride (PVDF), polyethylene glycol (PEG) as hydrophilic agent, zeolitic like framework-67 (ZIF-67), ethylenediamine as cross-linking agent on Ag-nanoparticle-decorated polyester textile (PT) support (PT/AgNPs/PVDF-PEG/ZIF-67). PT/Ag-NPs/PVDF-PEG/ZIF-67 morphology, crystalline structure, surface chemical composition and hydrophilicity of PT/Ag-NPs/PVDF-PEG/ZIF-67 were fully characterized by field emission scanning electron microscopy (FE-SEM), X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR) and water contact angle technique, respectively. PT/Ag-NPs/PVDF-PEG/ZIF-67 was applied in cross module set-up for removal of contaminated water containing rose bengal (RB) dye. The effect of operational parameters such as dye concentration, solution pH and flow rate on performance of PT/Ag-NPs/PVDF-PEG/ZIF-67 were investigated and optimized by central composite design (CCD). Casting solution containing 0.5 wt.% ZIF-67 as optimum value showed the good wettability, high pure water flux (PWF; 35.8 L·m-2·h-1), flux recovery ratio (FRR;90%), dye removal efficiency (96.41%). The selectivity factor of 12.72 and 14.42 was found to be for RB in the presence of amido black and methylene blue as interferent dyes, respectively, which showed a good selective recognition ability for RB dye.

关键词: Ag nanoparticles, Hydrophilic membrane, Polyester textile, Polyethylene glycol, Zeolitic like framework-67

Abstract: A novel mixed matrix nanofiltration membrane was constructed by coating a casting solution containing polyvinylidene fluoride (PVDF), polyethylene glycol (PEG) as hydrophilic agent, zeolitic like framework-67 (ZIF-67), ethylenediamine as cross-linking agent on Ag-nanoparticle-decorated polyester textile (PT) support (PT/AgNPs/PVDF-PEG/ZIF-67). PT/Ag-NPs/PVDF-PEG/ZIF-67 morphology, crystalline structure, surface chemical composition and hydrophilicity of PT/Ag-NPs/PVDF-PEG/ZIF-67 were fully characterized by field emission scanning electron microscopy (FE-SEM), X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR) and water contact angle technique, respectively. PT/Ag-NPs/PVDF-PEG/ZIF-67 was applied in cross module set-up for removal of contaminated water containing rose bengal (RB) dye. The effect of operational parameters such as dye concentration, solution pH and flow rate on performance of PT/Ag-NPs/PVDF-PEG/ZIF-67 were investigated and optimized by central composite design (CCD). Casting solution containing 0.5 wt.% ZIF-67 as optimum value showed the good wettability, high pure water flux (PWF; 35.8 L·m-2·h-1), flux recovery ratio (FRR;90%), dye removal efficiency (96.41%). The selectivity factor of 12.72 and 14.42 was found to be for RB in the presence of amido black and methylene blue as interferent dyes, respectively, which showed a good selective recognition ability for RB dye.

Key words: Ag nanoparticles, Hydrophilic membrane, Polyester textile, Polyethylene glycol, Zeolitic like framework-67