Polyamidoamine dendrimers-Mil-125(Ti) MOF embedded polyethersulfone membrane for enhanced removal of heavy metal, antibiotic and dye from water


Khosravi M. J., Hosseini S. M., Vatanpour V.

JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING, cilt.10, sa.6, 2022 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 10 Sayı: 6
  • Basım Tarihi: 2022
  • Doi Numarası: 10.1016/j.jece.2022.108644
  • Dergi Adı: JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, CAB Abstracts, Chemical Abstracts Core, Compendex, INSPEC, Veterinary Science Database
  • Anahtar Kelimeler: Polyamidoamine dendrimers, Mil-125(Ti), Mixed matrix, High flux membrane, Pollutant removal, PES ULTRAFILTRATION MEMBRANE, REVERSE-OSMOSIS MEMBRANE, NANOFILTRATION MEMBRANE, WASTE-WATER, NANOCOMPOSITE MEMBRANES, PHOTOCATALYTIC ACTIVITY, ORGANIC FRAMEWORKS, PERFORMANCE, NANOPARTICLES, COMPOSITE
  • İstanbul Teknik Üniversitesi Adresli: Evet

Özet

In the current study, the solvo-thermal method was used to synthesize Mil-125(Ti). Then, polyamidoamine dendrimer G.02 (PAMAM) was produced by Michael's addition reaction and then loaded on the surface of Mil-125(Ti) to produce Mil-Den nanocomposite. The FESEM images, XRD pattern and FTIR analyses were used to investigate the physicochemical and structural features of synthesized Mil-Den. Next, the prepared Mil-Den nanocomposite was used for the fabrication of mixed matrix polyethersulfone (PES) membranes. The morphology, water flux, anti-fouling properties, hydrophilicity, and rejection of the Na2SO4 salt, Lead (II) ni-trates as heavy metal, cefixime antibiotic, and six different reactive dyes were assessed. The incorporation of Mil -Den nanocomposite into PES membrane led to porosity enhancement from 66.8% for the bare membrane to 87.2% for the blended ones containing 1 wt% of Mil-Den. Also, the water contact angle of membrane was reduced from 59.2 degrees to 31.2 degrees by use of Mil-Den. The water flux of the membrane was remarkably increased from 17.9 to 287.6 (L/m2/h) by the addition of Mil-Den. The dye rejection for the blended membrane containing 0.2 wt% of Mil-Den nanocomposite measured 99.33%, 85.18%, 98.20%, 94.67%, 82.49% and 79.05% for RG19, RB50, RB21, RY145, RY160 and RY39, respectively. In addition, the rejection of cefixime antibiotic, lead ion, and sodium sulfate solutions were measured 80.04%, 97.36%, and 65.21%, respectively. The flux recovery ratio determined > 68% for the bare PES membrane whereas that was > 90% for the modified membrane with 0.1 wt % Mil-Den nanocomposite. Consequently, this study indicated the high potential of blended Mil-Den/PES-based membranes in water treatment.