Thermal analysis applied for the removal of surfactant from mesoporous molecular sieves MCM-41 synthesized from gold mine tailings slurry


Yilmaz M. , Degitz I. A. , Piskin S.

JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY, cilt.130, ss.727-734, 2017 (SCI İndekslerine Giren Dergi)

  • Cilt numarası: 130 Konu: 2
  • Basım Tarihi: 2017
  • Doi Numarası: 10.1007/s10973-017-6490-2
  • Dergi Adı: JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
  • Sayfa Sayısı: ss.727-734

Özet

The aim of the current study is to obtain the thermal behavior and kinetic analyses of the removal of surfactant from MCM-41 synthesized from tailings slurry at different heating rates. X-ray diffraction and thermogravimetric analyses were carried out to determine the characterization of the synthesized samples. Kissinger-Akahira-Sunose and Friedman isoconversional kinetic methods were applied for the purpose of determining the kinetic analysis parameters of the decomposition of surfactant from the mesoporous molecular sieves MCM-41 under non-isothermal conditions. For the comparison of these results, MCM-41 was synthesized from a pure silica source. The thermal behaviors of MCM-41 synthesized from tailings slurry do not differ from samples synthesized from pure silica during the decomposition reactions. The kinetic analysis' results indicate that the decomposition reactions of the synthesized MCM-41 samples had complex reaction mechanisms.