Chemical Industry and Chemical Engineering Quarterly 2011 Volume 17, Issue 4, Pages: 505-515
https://doi.org/10.2298/CICEQ110701036M
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The effect of mesoporous carbon modification by nitrogen on its enrichment efficiency of chromate ion: Comparison between N-doped mesoporous carbon and amino grafted mesoporous carbon
Moradi S.E. (Islamic Azad University, Faculty of Science, Sari Branch, Iran)
Baniamerian M.J. (Islamic Azad University, Faculty of Science, Kermanshah Branch, Iran)
In the present work, well ordered, N-doped mesoporous carbon (MCN) sorbent
with uniform mesoporous wall, high surface area and pore volume has been
fabricated using the simple polymerization reaction between ethylene diamine
and carbon tetrachloride in mesoporous silica media. The structural order and
textural properties of nanostructured materials were studied by XRD,
elemental analysis, and nitrogen Adsorption-desorption experiment. Adsorption
of Chromate over various porous adsorbents such as mesoporous carbon (MC),
N-doped mesoporous carbon (MCN), and amino modified mesoporous carbon (AMC)
was studied from solutions with different concentration, temperature and pH
in polar (water) solvent. The adsorption isotherms of Chromate were in
agreement with Langmuir model, moreover, the uptake capacity of Chromate over
MCN was much higher than amino modified mesoporous carbon (AMC) and pristine
mesoporous carbon adsorbent.
Keywords: chromate, N-doped mesoporous carbon, adsorption, amino modification