TY - JOUR
T1 - Adsorptive removal of benzothiophene using porous copper- benzenetricarboxylate loaded with phosphotungstic acid
AU - Khan, Nazmul Abedin
AU - Jhung, Sung Hwa
PY - 2012/8
Y1 - 2012/8
N2 - Liquid-phase adsorption of benzothiophene (BT) over phosphotungstic acid (PWA)-loaded porous copper-benzenetricarboxylate (Cu-BTC, one of the porous metal-organic frameworks) has been studied to understand the effect of PWAs on the adsorption/removal. The maximum adsorption capacity (Q 0) increases with increasing PWA loading up to a W/Cu (wt./wt.) ratio of 0.22 in PWA/Cu-BTCs, resulting in an increase in the Q 0 by 26% compared with the virgin Cu-BTC. Since there is no remarkable change in the surface area and pore volume for the virgin and PWA loaded Cu-BTCs, it is suggested that the improved Q 0 over PWA/Cu-BTCs is due to the favorable interactions like acid-base ones between the acidic PWA and slightly basic BT. Based on this result, it can be suggested that MOF (metal-organic framework)-type materials, modified suitably, can be used in the adsorptive desulfurization of fuels.
AB - Liquid-phase adsorption of benzothiophene (BT) over phosphotungstic acid (PWA)-loaded porous copper-benzenetricarboxylate (Cu-BTC, one of the porous metal-organic frameworks) has been studied to understand the effect of PWAs on the adsorption/removal. The maximum adsorption capacity (Q 0) increases with increasing PWA loading up to a W/Cu (wt./wt.) ratio of 0.22 in PWA/Cu-BTCs, resulting in an increase in the Q 0 by 26% compared with the virgin Cu-BTC. Since there is no remarkable change in the surface area and pore volume for the virgin and PWA loaded Cu-BTCs, it is suggested that the improved Q 0 over PWA/Cu-BTCs is due to the favorable interactions like acid-base ones between the acidic PWA and slightly basic BT. Based on this result, it can be suggested that MOF (metal-organic framework)-type materials, modified suitably, can be used in the adsorptive desulfurization of fuels.
KW - Adsorption
KW - Copper-benzenetricarboxylate
KW - Desulfurization
KW - Metal-organic framework
KW - Phosphotungstic acid
UR - http://www.scopus.com/inward/record.url?scp=84859506673&partnerID=8YFLogxK
U2 - 10.1016/j.fuproc.2012.03.006
DO - 10.1016/j.fuproc.2012.03.006
M3 - Article
AN - SCOPUS:84859506673
SN - 0378-3820
VL - 100
SP - 49
EP - 54
JO - Fuel Processing Technology
JF - Fuel Processing Technology
ER -