Enhanced photocatalytic NOx oxidation and storage under visible-light irradiation by anchoring Fe3O4 nanoparticles on mesoporous graphitic carbon nitride (mpg-C3N4)

Simple item page
buir.contributor.authorIrfan, Muhammad
buir.contributor.authorKoçak, Yusuf
buir.contributor.authorBalcı, Merve
buir.contributor.authorÖzensoy, Emrah
dc.citation.epage137en_US
dc.citation.spage126en_US
dc.citation.volumeNumber249en_US
dc.contributor.authorIrfan, Muhammaden_US
dc.contributor.authorSevim, M.en_US
dc.contributor.authorKoçak, Yusufen_US
dc.contributor.authorBalcı, Merveen_US
dc.contributor.authorMetin, Ö.en_US
dc.contributor.authorÖzensoy, Emrahen_US
dc.date.accessioned2020-01-27T10:52:33Z
dc.date.available2020-01-27T10:52:33Z
dc.date.issued2019
dc.departmentDepartment of Chemistryen_US
dc.departmentInstitute of Materials Science and Nanotechnology (UNAM)en_US
dc.description.abstractSeveral mesoporous graphitic carbon nitride (mpg-C3N4) photocatalysts were synthesized by using a hard-templating method comprising thermal polycondensation of guanidine hydrochloride over silica spheres at three different temperatures (450, 500 and 550 ℃). After structural characterization of these mpg-C3N4 photocatalysts, they were tested in NO(g) photo-oxidation under visible (VIS) light. The effects of polycondensation temperature on the structure and photocatalytic performance of mpg-C3N4 in NO photo-oxidation were studied. The results revealed that polycondensation temperature has a dramatic effect on the photocatalytic activity of mpg-C3N4 in NO photo-oxidation, where mpg-C3N4 synthesized at 500 ℃ (mpg-CN500) showed the best performance in NOx abatement as well as a high selectivity towards solid state NOx storage under VIS light illumination. Photocatalytic performance of the mpg-CN500 was further enhanced by the anchoring of 8.0 ± 0.5 wt.% Fe3O4 nanoparticles (NPs) on it. Fe3O4/mpg-CN500 photocatalyst showed both high activity and high selectivity along with extended reusability without a need for a regeneration step. Enhanced photocatalytic NOx oxidation and storage efficiency of Fe3O4/mpg-CN500 photocatalyst was attributed to their mesoporous structure, high surface area and slow electron-hole recombination kinetics, efficient electron-hole separation and facile electron transfer from mpg-CN500 to Fe3O4 domains enhancing photocatalytic O2 reduction, while simultaneously suppressing nitrate photo-reduction and decomposition to NO2(g).en_US
dc.embargo.release2021-07-15
dc.identifier.doi10.1016/j.apcatb.2019.02.067en_US
dc.identifier.issn0926-3373
dc.identifier.urihttp://hdl.handle.net/11693/52833
dc.language.isoEnglishen_US
dc.publisherElsevieren_US
dc.relation.isversionofhttps://doi.org/10.1016/j.apcatb.2019.02.067en_US
dc.source.titleApplied Catalysis B: Environmentalen_US
dc.subjectGraphitic carbon nitrideIron oxideen_US
dc.subjectPhotocatalytic oxidationen_US
dc.subjectNOx abatementen_US
dc.subjectDeNOxen_US
dc.titleEnhanced photocatalytic NOx oxidation and storage under visible-light irradiation by anchoring Fe3O4 nanoparticles on mesoporous graphitic carbon nitride (mpg-C3N4)en_US
dc.typeArticleen_US

Files

Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
Enhanced_photocatalytic_NOx_oxidation_and_storage_under_visible-light_irradiation_by_anchoring_Fe3O4_nanoparticles_on_mesoporous_graphitic_carbon_nitride_(mpg-C3N4).pdf
Size:
2.81 MB
Format:
Adobe Portable Document Format
Description:
Download
License bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
license.txt
Size:
1.71 KB
Format:
Item-specific license agreed upon to submission
Description:
Download

Collections

Department of Chemistry
Institute of Materials Science and Nanotechnology (UNAM)