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dc.contributor.authorLi, Ziyien_US
dc.contributor.authorLiu, Yingshuen_US
dc.contributor.authorYang, Xiongen_US
dc.contributor.authorXing, Yien_US
dc.contributor.authorTsai, Chuen-Jinnen_US
dc.contributor.authorMeng, Miaomiaoen_US
dc.contributor.authorYang, Ralph T.en_US
dc.date.accessioned2017-04-21T06:56:24Z-
dc.date.available2017-04-21T06:56:24Z-
dc.date.issued2017-02en_US
dc.identifier.issn1387-1811en_US
dc.identifier.urihttp://dx.doi.org/10.1016/j.micromeso.2016.09.027en_US
dc.identifier.urihttp://hdl.handle.net/11536/132732-
dc.description.abstractAdsorptive removal of the predominant polycyclic aromatic hydrocarbons (PAHs), represented by phenanthrene, from hot gases using mesoporous adsorbents (mesosilicas MCM-41 and SBA-15, and mesocarbon CMK-3) has been studied through tests of column adsorption and temperature programmed desorption (TPD). Adsorption equilibria on MCM-41 and CMK-3, and on SBA-15 were well described by Langmuir and Freundlich models, respectively, showing the order of adsorption capacity of CMK-3 > SBA-15 > MCM-41 originated from different geometrical structures and texture properties. Adsorption dynamics based on breakthrough fitting by the constant-pattern wave propagation model showed that mesoporosity contributed to fast overall adsorption kinetics by reducing the internal resistance as being the predominant mass-transfer step, particularly on SBA-15 with a 2-D cross-linked structure. The TPD tests revealed the order of ease of desorption of SBA-15 approximate to MCM-41 > CMK-3, where the structural advantage on SBA-15 dominated the strong site binding as indicated by the intrinsic activation energy and exponential factor obtained by TPD models. Results from different TPD models showed that re-adsorption effect during desorption increased with decreasing dimension of adsorbent structure and that the utilization of the simplified linear TPD model could be violated by the strong sorbate-sorbent binding. Comparisons with traditional adsorbents and with the removal of naphthalene by these mesoporous adsorbents were made, showing higher applicability of CMK-3 for phenanthrene regarding stronger adsorption affinity and capacity as well as decreased disadvantages in regenerability relative to mesosilicas. (C) 2016 Elsevier Inc. All rights reserved.en_US
dc.language.isoen_USen_US
dc.subjectAdsorptive removalen_US
dc.subjectPolycyclic aromatic hydrocarbons (PAHs)en_US
dc.subjectMesoporous materialsen_US
dc.subjectAdsorption mechanismen_US
dc.subjectRegenerabilityen_US
dc.titlePerformance of mesoporous silicas and carbon in adsorptive removal of phenanthrene as a typical gaseous polycyclic aromatic hydrocarbonen_US
dc.identifier.doi10.1016/j.micromeso.2016.09.027en_US
dc.identifier.journalMICROPOROUS AND MESOPOROUS MATERIALSen_US
dc.citation.volume239en_US
dc.citation.spage9en_US
dc.citation.epage18en_US
dc.contributor.department環境工程研究所zh_TW
dc.contributor.departmentInstitute of Environmental Engineeringen_US
dc.identifier.wosnumberWOS:000389284300002en_US
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