ADSORPTION PROPERTIES OF AMMONIA MOLECULES ON DIACETATECELLULOSE–SILICA HYBRID BIONANOCOMPOSITE
Authors
Akhror Yarkulov, Jayhun Mamatov, Sardor Otajonov, Davron Kuronboev, Khamdam Akbarov
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In this study, the adsorption isotherm of ammonia molecules on diacetatecellulose (DAC)–silica hybrid bionanocomposite at 303 K was described from the initial stage to saturation using the three-term TVFM equation. The adsorption thermokinetics indicated that the equilibrium time for the initial adsorption of ammonia molecules was 6.5 hours, and the differential heat of adsorption was 38.7 kJ/mol. The differential molar entropy curve showed that up to an ammonia amount of 1 mmol/g, the mobility of molecules on the adsorbent surface was high, whereas beyond 1 mmol/g, the ammonia molecules were found to be firmly anchored to the adsorbent.
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Authors
Akhror Yarkulov, Jayhun Mamatov, Sardor Otajonov, Davron Kuronboev, Khamdam Akbarov
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