Polyaniline coated magnetic carboxymethylcellulose beads for selective removal of uranium ions from aqueous solution

Arica M. Y., BAYRAMOĞLU G.

JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY, cilt.310, sa.2, ss.711-724, 2016 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 310 Sayı: 2
  • Basım Tarihi: 2016
  • Doi Numarası: 10.1007/s10967-016-4828-z
  • Dergi Adı: JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.711-724
  • Anahtar Kelimeler: Uranium(VI), Carboxymethylcellulose, Polyaniline, Surface modification, Adsorption, LENTINUS-SAJOR-CAJU, POLYMER MICROSPHERES, ASPERGILLUS-NIGER, ELOVICH EQUATION, ADSORPTION, BIOSORPTION, AMIDOXIME, EQUILIBRIUM, SORPTION, KINETICS
  • Gazi Üniversitesi Adresli: Evet

Özet

Magnetic carboxymethylcellulose (CMC) beads were prepared via ionic cross-linking. Then CMC beads were coated with polyaniline (PANI). The results of FTIR, SEM, DTA and N-2 adsorption-desorption demonstrated that aniline was successfully grafted onto the surface of mCMC beads. The potential use of the prepared adsorbent was used for removal of U(VI) ions. The determined maximum adsorption capacities of the mCMC and mCMC-g-PANI beads for U(VI) ions were 129.4 and 386.5 mg/g dry weight at pH 4.5, respectively. The thermodynamic parameters (Delta HA degrees, Delta SA degrees and Delta GA degrees) were evaluated. The adsorbent systems were regenerated using 0.1 M HCl.