Synthesis, characterization, and kinetic studies of multifunctionalized mesoporous silica for adsorption of zinc

ÇITAK A.

TURKISH JOURNAL OF CHEMISTRY, cilt.43, sa.1, ss.106-117, 2019 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 43 Sayı: 1
  • Basım Tarihi: 2019
  • Doi Numarası: 10.3906/kim-1803-79
  • Dergi Adı: TURKISH JOURNAL OF CHEMISTRY
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, TR DİZİN (ULAKBİM)
  • Sayfa Sayıları: ss.106-117
  • Anahtar Kelimeler: Bifunctionalized SBA15, metal adsorption, kinetic model, adsorption isotherm, mesoporous material, ACID BLUE 62, AQUEOUS-SOLUTION, WASTE-WATER, REMOVAL, SBA-15, IONS, LEAD, DYE, COPPER, THIOL
  • Eskişehir Osmangazi Üniversitesi Adresli: Evet

Özet

The aim of this study is to evaluate the utilization of bifunctional mesoporous silica with a platinum and propylsulfonic acid group (Pt/SBA15-PrSO3H) as an adsorbent for the removal of Zn(II) ions from aqueous solutions. The SBA15-functionalized organosulfonic acid material was synthesized with a one-step cocondensation synthesis route. The second step was Pt loading during reduction and deposition into the aqueous suspension of the bifunctional mesoporous silica synthesized by an aqueous solution of formaldehyde as the reducing agent. The propylsulfonic acid and platinum functionalized mesoporous silica were characterized by BET, thermogravimetric analysis, and X-ray diffraction methods. The adsorption properties and thermodynamic parameters of the bifunctional mesoporous silica synthesized to adsorb Zn(II) ions were studied. The effects of pH, initial concentration, temperature, adsorption equilibrium, and adsorption kinetics on the adsorption of zinc were investigated using the synthesized bifunctional mesoporous silica.