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dc.contributor.authorHu, Zhao
dc.contributor.authorLi, Kaining
dc.contributor.authorWu, Xiaofeng
dc.contributor.authorWang, Ning
dc.contributor.authorLi, Xiaofang
dc.contributor.authorLi, Qin
dc.contributor.authorLi, Lin
dc.contributor.authorLv, Kangle
dc.date.accessioned2019-07-31T13:18:51Z
dc.date.available2019-07-31T13:18:51Z
dc.date.issued2019-06-15
dc.identifier.citationHu, Z., Li, K., Wu, X., Wang, N., Li, X., Li, Q., … Lv, K. (2019). Dramatic promotion of visible-light photoreactivity of TiO2 hollow microspheres towards NO oxidation by introduction of oxygen vacancy. Applied Catalysis B: Environmental, 256, 117860. doi:10.1016/j.apcatb.2019.117860
dc.identifier.doi10.1016/j.apcatb.2019.117860
dc.identifier.urihttp://hdl.handle.net/10754/656272
dc.description.abstractHollow-structured TiO2 has attracted much attention owing to its low density, good light-reflecting ability, and excellent permeability. However, the wide bandgap (about 3.2 eV for anatase TiO2) and fast recombination of photo-generated carriers hamper its practical application. Herein, oxygen vacancy (OV) was introduced onto the surface of TiO2 hollow microspheres (TiO2-HMSs) by a facile method through calcination of the mixture of hydrogen titanate hollow microspheres (H2TiO3-HMSs) and urea. Using this strategy, both the aims of extending the light-response range and promoting the separation of photo-generated carriers were satisfactorily achieved. The introduction of Ov facilitates the adsorption and activation of NO and O2 on the surface of TiO2-HMSs. This stimulates the production of reactive oxygen species, such as superoxide radicals ([rad]O2 −) and hydroxyl radicals ([rad]OH), resulting in the dramatic promotion of visible-light photocatalytic oxidation of NO.
dc.description.sponsorshipThis work was supported by the National Natural Science Foundation of China (51672312 & 21373275) and the Fundamental Research Funds for the Central Universities, South-Central University for Nationalities (CZT19006).
dc.publisherElsevier BV
dc.relation.urlhttps://linkinghub.elsevier.com/retrieve/pii/S092633731930606X
dc.rightsNOTICE: this is the author’s version of a work that was accepted for publication in Applied Catalysis B: Environmental. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Applied Catalysis B: Environmental, [[Volume], [Issue], (2019-06-15)] DOI: 10.1016/j.apcatb.2019.117860 . © 2019. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subjectTiO2 hollow microspheres
dc.subjectOxygen vacancy
dc.subjectPhotocatalysis
dc.subjectNO
dc.subjectVisible light
dc.titleDramatic promotion of visible-light photoreactivity of TiO2 hollow microspheres towards NO oxidation by introduction of oxygen vacancy
dc.typeArticle
dc.contributor.departmentAdvanced Membranes and Porous Materials Center, Physical Sciences and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia
dc.identifier.journalApplied Catalysis B: Environmental
dc.rights.embargodate2021-06-15
dc.eprint.versionPost-print
dc.contributor.institutionCollege of Resources and Environmental Science, South-Central University for Nationalities, Wuhan, 430074, PR China
dc.contributor.institutionCollege of Chemistry and Chemical Engineering, Wuhan University of Science and Technology, Wuhan, 430081, PR China
kaust.personWang, Ning
dc.date.published-online2019-06-15
dc.date.published-print2019-11


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NOTICE: this is the author’s version of a work that was accepted for publication in Applied Catalysis B: Environmental. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Applied Catalysis B: Environmental, [[Volume], [Issue], (2019-06-15)] DOI: 10.1016/j.apcatb.2019.117860 . © 2019. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/
Except where otherwise noted, this item's license is described as NOTICE: this is the author’s version of a work that was accepted for publication in Applied Catalysis B: Environmental. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Applied Catalysis B: Environmental, [[Volume], [Issue], (2019-06-15)] DOI: 10.1016/j.apcatb.2019.117860 . © 2019. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/