TY - JOUR
T1 - Facile functionalization of 3-D ordered KIT-6 with cuprous oxide for deep desulfurization
AU - Subhan, Fazle
AU - Aslam, Sobia
AU - Yan, Zifeng
AU - Zhen, Liu
AU - Ahmad, Ayaz
AU - Naeem, Muhammad
AU - Zeng, Jingbin
AU - Ullah, Rooh
AU - Etim, U. J.
N1 - Publisher Copyright:
© 2017 Elsevier B.V.
PY - 2017
Y1 - 2017
N2 - Deep desulfurization by π-complexation is an efficient technique for purification of fuels. In π-complexation adsorbents, Cu(I)-based materials are effective due to low cost and high activity. However, the deep desulfurization has been proven to strongly rely on the dispersion extent of Cu species. Herein, for the first time, we report ammonia assisted deposition precipitation one-step N2 reduction strategy to fabricate Cu2O-containing KIT-6. In such strategy, Cu(NO3)2 precursor was directly introduced into the microenvironment exist between template and silica walls of template-P123-containing KIT-6 via ammonia assisted deposition precipitation. The subsequent single step N2 reduction strategy perform three functions in a single mode i.e. decomposition of Cu precursor to CuO, template removal, and conversion of CuO to Cu(I). Our strategy is convenient and efficiently promoted the dispersion of Cu species with high yield (61.84%) of Cu(I). We also demonstrated that the resultant material, as-synthesized KIT-6 supported with an optimal content 20 wt% of Cu, can capture 0.28 mmol·g−1 thiophene, which is obviously better than its counterpart CuCK-20 synthesized via calcined KIT-6. Furthermore, the thiophene adsorption activity can be recovered well without any obvious loss. Facile synthesis, high thiophene removal, and excellent regeneration ability make Cu/KIT-6 favorable for utilization in adsorptive desulfurization technology.
AB - Deep desulfurization by π-complexation is an efficient technique for purification of fuels. In π-complexation adsorbents, Cu(I)-based materials are effective due to low cost and high activity. However, the deep desulfurization has been proven to strongly rely on the dispersion extent of Cu species. Herein, for the first time, we report ammonia assisted deposition precipitation one-step N2 reduction strategy to fabricate Cu2O-containing KIT-6. In such strategy, Cu(NO3)2 precursor was directly introduced into the microenvironment exist between template and silica walls of template-P123-containing KIT-6 via ammonia assisted deposition precipitation. The subsequent single step N2 reduction strategy perform three functions in a single mode i.e. decomposition of Cu precursor to CuO, template removal, and conversion of CuO to Cu(I). Our strategy is convenient and efficiently promoted the dispersion of Cu species with high yield (61.84%) of Cu(I). We also demonstrated that the resultant material, as-synthesized KIT-6 supported with an optimal content 20 wt% of Cu, can capture 0.28 mmol·g−1 thiophene, which is obviously better than its counterpart CuCK-20 synthesized via calcined KIT-6. Furthermore, the thiophene adsorption activity can be recovered well without any obvious loss. Facile synthesis, high thiophene removal, and excellent regeneration ability make Cu/KIT-6 favorable for utilization in adsorptive desulfurization technology.
KW - Acidic sites
KW - As-synthesized-KIT-6
KW - Cuprous oxide
KW - Desulfurization
KW - Thiophene
UR - http://www.scopus.com/inward/record.url?scp=85026457606&partnerID=8YFLogxK
U2 - 10.1016/j.cej.2017.07.151
DO - 10.1016/j.cej.2017.07.151
M3 - 文章
AN - SCOPUS:85026457606
SN - 1385-8947
VL - 330
SP - 372
EP - 382
JO - Chemical Engineering Journal
JF - Chemical Engineering Journal
ER -