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dc.contributor.authorFeng, Jiannan
dc.contributor.authorBian, Ji
dc.contributor.authorBai, Linlu
dc.contributor.authorXi, Shibo
dc.contributor.authorWang, Ya
dc.contributor.authorChen, Cailing
dc.contributor.authorJing, Liqiang
dc.date.accessioned2021-06-07T13:53:28Z
dc.date.available2021-06-07T13:53:28Z
dc.date.issued2021-04-27
dc.date.submitted2021-04-05
dc.identifier.citationFeng, J., Bian, J., Bai, L., Xi, S., Wang, Y., Chen, C., & Jing, L. (2021). Efficient wide-spectrum photocatalytic overall water splitting over ultrathin molecular nickel phthalocyanine/BiVO4 Z-scheme heterojunctions without noble metals. Applied Catalysis B: Environmental, 295, 120260. doi:10.1016/j.apcatb.2021.120260
dc.identifier.issn0926-3373
dc.identifier.doi10.1016/j.apcatb.2021.120260
dc.identifier.urihttp://hdl.handle.net/10754/669440
dc.description.abstractPhotocatalytic overall water splitting (OWS) is a promising route for sustainable production of hydrogen fuels. A grand challenge is developing efficient photocatalysts with extended light absorption, high charge separation and abundant catalytic sites. Here, we designed molecular nickel phthalocyanines on phosphate-functionalized bismuth vanadate nanosheets (NiPc/PO-BVNS) as ultrathin heterojunctions, targeting OWS without noble-metal cocatalysts or sacrificial agents. Optimal NiPc/PO-BVNS affords H2/O2 evolution rates of 23.89/12.23 μmol g−1 h−1 with stoichiometric ratio under UV–vis irradiation, which reaches remarkable 50-fold enhancement over the benchmark g-C3N4/BVNS. The excellent photoactivities are ascribed to the novel Z-scheme charge separation between NiPc and PO-BVNS, where phosphates are proved to induce quasi-single-molecule-layer dispersion of NiPcs by H-bonding effect meanwhile create negative field to trap holes. Moreover, well-defined Ni2+–N4 center of NiPc could function as the catalytic sites for H2 evolution. This work diversifies the artificial photosynthesis systems with a facile strategy of constructing novel Z-scheme organic/inorganic heterojunctions.
dc.description.sponsorshipThis work was supported by the NSFC project (U1805255).
dc.publisherElsevier BV
dc.relation.urlhttps://linkinghub.elsevier.com/retrieve/pii/S0926337321003866
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, [295, , (2021-04-27)] DOI: 10.1016/j.apcatb.2021.120260 . © 2021. 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.titleEfficient wide-spectrum photocatalytic overall water splitting over ultrathin molecular nickel phthalocyanine/BiVO4 Z-scheme heterojunctions without noble metals
dc.typeArticle
dc.contributor.departmentAdvanced Membranes and Porous Materials Research Center
dc.contributor.departmentPhysical Science and Engineering (PSE) Division
dc.identifier.journalApplied Catalysis B: Environmental
dc.rights.embargodate2023-05-04
dc.eprint.versionPost-print
dc.contributor.institutionDepartment Key Laboratory of Functional Inorganic Materials Chemistry (Ministry of Education), School of Chemistry and Materials Science, International Joint Research Center and Lab for Catalytic Technology, Heilongjiang University, Harbin 150080, P. R. China
dc.contributor.institutionInstitute of Chemical and Engineering Sciences, A⁎STAR, 1 Pesek Road, Jurong Island, 627833, Singapore
dc.contributor.institutionSchool of Material and Chemical Engineering, Harbin Unerversity of Science and Technology, Harbin 150080, P. R. China
dc.identifier.volume295
dc.identifier.pages120260
kaust.personChen, Cailing
dc.date.accepted2021-04-25
dc.identifier.eid2-s2.0-85105339719


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