Shape-Enhanced Photocatalytic Activities of Thoroughly Mesoporous ZnO Nanofibers

Handle URI:
http://hdl.handle.net/10754/621634
Title:
Shape-Enhanced Photocatalytic Activities of Thoroughly Mesoporous ZnO Nanofibers
Authors:
Ren, Xiaolong; Hou, Huilin; Liu, Zhixiong; Gao, Fengmei; Zheng, Jinju; Wang, Lin; Li, Wenge; Ying, Pengzhan; Yang, Weiyou; Wu, Tao ( 0000-0003-0845-4827 )
Abstract:
1D mesoporous materials have attracted extensive interest recently, owning to their fascinating properties and versatile applications. However, it remains as a grand challenge to develop a simple and efficient technique to produce oxide nanofibers with mesoporous architectures, controlled morphologies, large surface areas, and optimal performances. In this work, a facile foaming-assisted electrospinning strategy with foaming agent of tea saponin is used to produce thoroughly mesoporous ZnO nanofibers with high purity and controlled morphology. Interestingly, mesoporous fibers with elliptical cross-section exhibit the significantly enhanced photocatalytic activity for hydrogen production, as compared to the counterparts with circular and rectangular cross-sections, and they also perform better than the commercial ZnO nanopowders. The unexpected shape dependence of photocatalytic activities is attributed to the different stacking modes of the mesoporous fibers, and a geometrical model is developed to account for the shape dependence. This work represents an important step toward producing thoroughly mesoporous ZnO nanofibers with tailored morphologies, and the discovery that fibers with elliptical cross-section render the best performance provides a valuable guideline for improving the photocatalytic performance of such mesoporous nanomaterials. © 2016 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
KAUST Department:
Materials Science and Engineering Program
Citation:
Ren X, Hou H, Liu Z, Gao F, Zheng J, et al. (2016) Shape-Enhanced Photocatalytic Activities of Thoroughly Mesoporous ZnO Nanofibers. Small 12: 4007–4017. Available: http://dx.doi.org/10.1002/smll.201600991.
Publisher:
Wiley-Blackwell
Journal:
Small
Issue Date:
24-Jun-2016
DOI:
10.1002/smll.201600991
Type:
Article
ISSN:
1613-6810
Sponsors:
The work was supported by the National Natural Science Foundation of China (NSFC, Grant Nos. 51372122 and 51372123) and the Program of Shanghai Outstanding Technical Leaders (Grant No. 14XD1425400). This work was also supported by the King Abdullah University of Science and Technology (KAUST).
Appears in Collections:
Articles; Materials Science and Engineering Program

Full metadata record

DC FieldValue Language
dc.contributor.authorRen, Xiaolongen
dc.contributor.authorHou, Huilinen
dc.contributor.authorLiu, Zhixiongen
dc.contributor.authorGao, Fengmeien
dc.contributor.authorZheng, Jinjuen
dc.contributor.authorWang, Linen
dc.contributor.authorLi, Wengeen
dc.contributor.authorYing, Pengzhanen
dc.contributor.authorYang, Weiyouen
dc.contributor.authorWu, Taoen
dc.date.accessioned2016-11-03T13:21:27Z-
dc.date.available2016-11-03T13:21:27Z-
dc.date.issued2016-06-24en
dc.identifier.citationRen X, Hou H, Liu Z, Gao F, Zheng J, et al. (2016) Shape-Enhanced Photocatalytic Activities of Thoroughly Mesoporous ZnO Nanofibers. Small 12: 4007–4017. Available: http://dx.doi.org/10.1002/smll.201600991.en
dc.identifier.issn1613-6810en
dc.identifier.doi10.1002/smll.201600991en
dc.identifier.urihttp://hdl.handle.net/10754/621634-
dc.description.abstract1D mesoporous materials have attracted extensive interest recently, owning to their fascinating properties and versatile applications. However, it remains as a grand challenge to develop a simple and efficient technique to produce oxide nanofibers with mesoporous architectures, controlled morphologies, large surface areas, and optimal performances. In this work, a facile foaming-assisted electrospinning strategy with foaming agent of tea saponin is used to produce thoroughly mesoporous ZnO nanofibers with high purity and controlled morphology. Interestingly, mesoporous fibers with elliptical cross-section exhibit the significantly enhanced photocatalytic activity for hydrogen production, as compared to the counterparts with circular and rectangular cross-sections, and they also perform better than the commercial ZnO nanopowders. The unexpected shape dependence of photocatalytic activities is attributed to the different stacking modes of the mesoporous fibers, and a geometrical model is developed to account for the shape dependence. This work represents an important step toward producing thoroughly mesoporous ZnO nanofibers with tailored morphologies, and the discovery that fibers with elliptical cross-section render the best performance provides a valuable guideline for improving the photocatalytic performance of such mesoporous nanomaterials. © 2016 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.en
dc.description.sponsorshipThe work was supported by the National Natural Science Foundation of China (NSFC, Grant Nos. 51372122 and 51372123) and the Program of Shanghai Outstanding Technical Leaders (Grant No. 14XD1425400). This work was also supported by the King Abdullah University of Science and Technology (KAUST).en
dc.publisherWiley-Blackwellen
dc.subjectElectrospinningen
dc.titleShape-Enhanced Photocatalytic Activities of Thoroughly Mesoporous ZnO Nanofibersen
dc.typeArticleen
dc.contributor.departmentMaterials Science and Engineering Programen
dc.identifier.journalSmallen
dc.contributor.institutionInstitute of Materials; Ningbo University of Technology; Ningbo 315016 P. R. Chinaen
dc.contributor.institutionSchool of Material Science and Engineering; China University of Mining and Technology; Xuzhou 221116 P. R. Chinaen
dc.contributor.institutionMerchant Marine College; Shanghai Maritime University; Shanghai 201306 P. R. Chinaen
kaust.authorLiu, Zhixiongen
kaust.authorWu, Taoen
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