Journal
RSC ADVANCES
Volume 4, Issue 79, Pages 41902-41909Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c4ra06515h
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Funding
- National Basic Research Program of China [2013CB733501]
- National Natural Science Foundation of China [21176066, 21376074]
- program of FP7-PEOPLE-2013-IRSES [PIRSES-GA-2013-612230]
- 111 Project of Ministry of Education of China [B08021]
- Fundamental Research Funds for the Central Universities of China
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The world is becoming more stringent on lowering the sulfur concentrations in fuels. To fulfill this expectation, a new type of magnetic desulfurization adsorbent, Fe3O4@PAA@MOF-199, was designed and fabricated using a facile two-step assembly approach, in which PAA inventively acted like a bridge to incorporate different amounts of magnetite Fe3O4 into a MOF-199 crystal matrix. Fe3O4@PAA@MOF-199s were demonstrated to be efficient adsorbents for the removal of S-compounds, such as thiophene, benzothiophene (BT) and dibenzothiophene (DBT), from a model fuel, and the sulfur saturated adsorption capacity followed the order of DBT > BT > thiophene. The magnetization of Fe3O4@PAA@MOF-199s ensured that the adsorbents had good performance in magnetic separation. The relative high adsorption capacity, the separation efficiency, as well as the stable recyclability indicated that magnetic Fe3O4@PAA@MOF-199 would be a promising adsorbent in adsorptive desulfurization.
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