Synthesis and characterization of polymer microspheres and its application for phenol adsorption

ÖZDEMİR İ., KARA A., TEKİN N., OLGUN A.

DESALINATION AND WATER TREATMENT, cilt.159, ss.290-303, 2019 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 159
  • Basım Tarihi: 2019
  • Doi Numarası: 10.5004/dwt.2019.24147
  • Dergi Adı: DESALINATION AND WATER TREATMENT
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.290-303
  • Anahtar Kelimeler: Adsorption, N-vinylimidazole, Ethylene glycol dimethacrylate, Polymer microspheres, Phenol, AQUEOUS-SOLUTIONS, GRAPHENE OXIDE, GLYCOL DIMETHACRYLATE), CONTAMINATED WATER, VI MICROSPHERES, WASTE-WATER, REMOVAL, BEADS, PRECONCENTRATION, SURFACTANT
  • Bursa Uludağ Üniversitesi Adresli: Evet

Özet

This paper reports synthesis of the poly(ethylene glycol dimethacrylate-n-vinyl imidazole) ([poly(EGDMA-VIM)]) microspheres by suspension polymerization for the removal of phenol from an aqueous solution. The synthesized [poly(EGDMA-VIM)] microspheres were characterized by various analysis techniques. The [poly(EGDMA-VIM)] microspheres possessed a high specific surface area (304.4 m2 g(-1)). It was found that the pseudo-second-order kinetic and Freundlich isotherm models could well define the phenol adsorption process. The maximum capacity of the [poly(EGDMA- VIM)] microspheres was calculated to be 34.7441 mg g(-1) at 298 K and natural pH from Langmuir isotherm. The adsorption thermodynamics revealed that the adsorption of phenol was an exothermic and spontaneous process. The [poly(EGDMA-VIM)] microspheres were easily regenerated by using a 0.01 M NaOH solution, and were repeatedly used for at least 5 cycles without losing the adsorption capacity. The experimental results suggest that the [poly(EGDMA-VIM)] microspheres can be implemented as a promising adsorbent for phenol removal from wastewater.