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dc.contributor.authorHao, Derek
dc.contributor.authorMa, Tianyi
dc.contributor.authorJia, Baohua
dc.contributor.authorWei, Yunxia
dc.contributor.authorBai, Xiaojuan
dc.contributor.authorWei, Wei
dc.contributor.authorNi, Bing-Jie
dc.description.abstractArtificial ammonia synthesis using solar energy is of great significance as it can help narrow the gap to the zero-net emission target. However, the current photocatalytic activity is generally too low for mass production. Herein, we report a novel bismuth bromide oxide (BiOBr)-Tetracyanoquinodimethane (TCNQ) photocatalyst prepared via a facile self-assembly method. Due to the well-match band structure of TCNQ and BiOBr, the separation and transfer of photogenerated electron-hole pairs were significantly boosted. More importantly, the abundant delocalized π electrons of TCNQ, and the electron-withdrawing property of TNCQ made electrons efficiently accumulated on the catalysts, which can strengthen the adsorption and cleavage of nitrogen molecules. As a result, the photocatalytic activity increased significantly. The highest ammonia yield of the optimized sample reached 2.617 mg/(h gcat), which was 5.6-fold as that of pristine BiOBr and higher than the reported BiOBr-based photocatalysts. The isotope labeled 15N2 was used to confirm that the ammonia is formed form the fixation of N2. Meanwhile, the sample also had good stability. After 4-time usage, the photocatalysts still had about 81.8% as the fresh sample. The results of this work provide a new way for optimizing the electronic structure of photocatalysts to achieve highly efficient photochemical N2 reduction.en_US
dc.publisherElsevier BVen_US
dc.relation.ispartofjournalJournal of Materials Science & Technologyen_US
dc.subject.fieldofresearchManufacturing engineeringen_US
dc.subject.fieldofresearchMaterials engineeringen_US
dc.subject.fieldofresearchMechanical engineeringen_US
dc.titleSmall molecule π-conjugated electron acceptor for highly enhanced photocatalytic nitrogen reduction of BiOBren_US
dc.typeJournal articleen_US
dc.type.descriptionC1 - Articlesen_US
dcterms.bibliographicCitationHao, D; Ma, T; Jia, B; Wei, Y; Bai, X; Wei, W; Ni, B-J, Small molecule π-conjugated electron acceptor for highly enhanced photocatalytic nitrogen reduction of BiOBr, Journal of Materials Science & Technology, 2021en_US
gro.description.notepublicThis publication has been entered as an advanced online version in Griffith Research Online.en_US
gro.hasfulltextNo Full Text
gro.griffith.authorHao, Derek

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