PREPARATION OF ANION-EXCHANGE CELLULOSE FOR THE REMOVAL OF CHROMATE


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ARAR Ö.

JOURNAL OF THE CHILEAN CHEMICAL SOCIETY, cilt.64, ss.4471-4474, 2019 (SCI İndekslerine Giren Dergi) identifier identifier

  • Cilt numarası: 64 Konu: 2
  • Basım Tarihi: 2019
  • Doi Numarası: 10.4067/s0717-97072019000204471
  • Dergi Adı: JOURNAL OF THE CHILEAN CHEMICAL SOCIETY
  • Sayfa Sayıları: ss.4471-4474

Özet

The quaternary ammonium group containing cellulose was prepared by the one-pot method and applied for the removal of chromate (CrO42-) ions from aqueous solution. The prepared sorbent was characterized by using elemental analyzer and Fourier transform infrared (FTIR) spectroscopy. Its ion exchange behavior toward CrO42- ions was investigated as a function of sorbent dose and initial solution pH. The kinetic and sorption equilibrium experiments were also carried out in a batch system. Equilibrium data were best fitted with the Langmuir model and the maximum ion exchange capacity of the sorbent was found as 3.8 mg of CrO42-/g sorbent. Moreover, the removal of CrO42- is achieved within 5 minutes. Furthermore, the calculated thermodynamic parameters disclosed that the ion exchange reaction is feasible, spontaneous and exothermic. In addition, the CrO42- ions can be desorbed from the sorbent by 1.0 M HCl solution with 95% regeneration efficiency.