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Adsorption of nitrobenzene on zero valent iron loaded metal oxide nanoparticles under static conditions
- Source :
-
Microporous & Mesoporous Materials . Mar2013, Vol. 168, p247-256. 10p. - Publication Year :
- 2013
-
Abstract
- Abstract: Metal oxide nanoparticles such as silica, alumina, magnesium oxide and calcium oxide were synthesized using sol–gel process followed by super critical drying. In order to increase reactivity, nanoparticles were loaded with zero valent iron. Nanoparticles were then characterized for their surface area, porosity, particle size, surface morphology, compositions, thermal stability, etc. Nanoparticles showed particle diameter in the range of 5–60nm, surface area 23–673m2/g and microporous–mesoporous characteristics. Adsorption of nitrobenzene on prepared nanoparticles was performed in closed glass chamber and the kinetics parameters such as equilibration constant, equilibration capacity, diffusional exponent and adsorbate–adsorbent interaction constant have been determined using linear driving force and Fickian diffusion model. Zero valent iron loaded silica nanoparticles showed maximum adsorption potential (1155mg/g) and considerable ratio for adsorption capacity to surface area (3.14mg/m2) among impregnated systems. [Copyright &y& Elsevier]
Details
- Language :
- English
- ISSN :
- 13871811
- Volume :
- 168
- Database :
- Academic Search Index
- Journal :
- Microporous & Mesoporous Materials
- Publication Type :
- Academic Journal
- Accession number :
- 84553900
- Full Text :
- https://doi.org/10.1016/j.micromeso.2012.10.006