Abstract
This study highlights the potential of four commercially available granular-activated carbons (GACs) to remove Methyl tert-butyl ether (MTBE) from an aqueous medium. Thermodynamics and kinetics parameters were elucidated. The FT-IR spectra showed decrease in peak intensity after the adsorption. The decline in the peak intensity revealed that the adsorption occurred on available active sites over the surface of the GACs. The adsorption on GACs was maximum in the pH range 7-8, with maximum adsorption capacity (47.82 mg/g, pH 8) observed with CGAC. The contact time studies showed optimum adsorption of MTBE on CGAC (67.05 mg/g) at 300 mg/L initial MTBE concentration. The applicability of the Freundlich model illustrates a multilayer adsorption process. The adsorption process is endothermic in nature. The kinetics studies showed that the adsorption follows the pseudo-second-order model on GACs and the intraparticle diffusion is the rate-controlling mechanism on CGAC.
| Original language | English |
|---|---|
| Pages (from-to) | 1121-1130 |
| Number of pages | 10 |
| Journal | Separation Science and Technology |
| Volume | 46 |
| Issue number | 7 |
| DOIs | |
| Publication status | Published - 2011 Apr 1 |
Fingerprint
All Science Journal Classification (ASJC) codes
- Chemistry(all)
- Chemical Engineering(all)
- Process Chemistry and Technology
- Filtration and Separation
Cite this
}
Adsorption studies for the removal of methyl tert-butyl ether on various commercially available GACs from an aqueous medium. / Khan, Moonis Ali; Lee, Sang Hoon; Kang, Sanghyuk; Paeng, Ki Jung; Lee, Giehyeon; Oh, Sang Eun; Jeon, Byong Hun.
In: Separation Science and Technology, Vol. 46, No. 7, 01.04.2011, p. 1121-1130.Research output: Contribution to journal › Article
TY - JOUR
T1 - Adsorption studies for the removal of methyl tert-butyl ether on various commercially available GACs from an aqueous medium
AU - Khan, Moonis Ali
AU - Lee, Sang Hoon
AU - Kang, Sanghyuk
AU - Paeng, Ki Jung
AU - Lee, Giehyeon
AU - Oh, Sang Eun
AU - Jeon, Byong Hun
PY - 2011/4/1
Y1 - 2011/4/1
N2 - This study highlights the potential of four commercially available granular-activated carbons (GACs) to remove Methyl tert-butyl ether (MTBE) from an aqueous medium. Thermodynamics and kinetics parameters were elucidated. The FT-IR spectra showed decrease in peak intensity after the adsorption. The decline in the peak intensity revealed that the adsorption occurred on available active sites over the surface of the GACs. The adsorption on GACs was maximum in the pH range 7-8, with maximum adsorption capacity (47.82 mg/g, pH 8) observed with CGAC. The contact time studies showed optimum adsorption of MTBE on CGAC (67.05 mg/g) at 300 mg/L initial MTBE concentration. The applicability of the Freundlich model illustrates a multilayer adsorption process. The adsorption process is endothermic in nature. The kinetics studies showed that the adsorption follows the pseudo-second-order model on GACs and the intraparticle diffusion is the rate-controlling mechanism on CGAC.
AB - This study highlights the potential of four commercially available granular-activated carbons (GACs) to remove Methyl tert-butyl ether (MTBE) from an aqueous medium. Thermodynamics and kinetics parameters were elucidated. The FT-IR spectra showed decrease in peak intensity after the adsorption. The decline in the peak intensity revealed that the adsorption occurred on available active sites over the surface of the GACs. The adsorption on GACs was maximum in the pH range 7-8, with maximum adsorption capacity (47.82 mg/g, pH 8) observed with CGAC. The contact time studies showed optimum adsorption of MTBE on CGAC (67.05 mg/g) at 300 mg/L initial MTBE concentration. The applicability of the Freundlich model illustrates a multilayer adsorption process. The adsorption process is endothermic in nature. The kinetics studies showed that the adsorption follows the pseudo-second-order model on GACs and the intraparticle diffusion is the rate-controlling mechanism on CGAC.
UR - http://www.scopus.com/inward/record.url?scp=79957884123&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=79957884123&partnerID=8YFLogxK
U2 - 10.1080/01496395.2010.551395
DO - 10.1080/01496395.2010.551395
M3 - Article
VL - 46
SP - 1121
EP - 1130
JO - Separation Science and Technology
JF - Separation Science and Technology
SN - 0149-6395
IS - 7
ER -