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Shape-controlled synthesis of bare ZnO nanomaterials with improved photoactivity and photostability
Ai, Jianping; Lin, Chucheng; Liao, Weixiu; Hu, Changyuan; Zhou, Tao; Luo, Shanshan; Cheng, Lihong; Chen, Zhiqin; Yang, Yanling; Zhang, Yue; Li, Wenkui
2019-02-11
Source PublicationMATERIALS SCIENCE AND TECHNOLOGY
ISSN0267-0836
Volume35Issue:3Pages:336
SubtypeArticle
AbstractUnderstanding the growth mechanisms of nanomaterials usually leads to the successful preparation of targeted micro-structures with excellent properties. In this paper, flower-like and roughly spherical ZnO nanocrystals have been successfully synthesised through facile wet chemical methods, i.e. hydrothermal pathways and homogeneous precipitation method. The photocatalytic activities of the prepared photocatalysts were evaluated by degradation of rhodamine B (RhB) and phenol under ultraviolet (UV) irradiation. Remarkably, the ZnO powder via homogeneous precipitation (urea/Zn2+ = 2.0) exhibited better photocatalytic performance and photostability than those of flower-like ZnO substrate. The enhanced photocatalytic properties could be attributed to more active catalytic sites and effective separation of carriers, which were confirmed by low-temperature nitrogen adsorption, photocurrent responses, and photoluminescence spectral analysis. A possible mechanism for the excellent photocatalytic activity of ZnO substrates was proposed.
KeywordZnO nanoparticles morphology growth mechanism photodegradation photostability
DOI10.1080/02670836.2018.1558578
Language英语
WOS Research AreaMaterials Science ; Metallurgy & Metallurgical Engineering
PublisherTAYLOR & FRANCIS LTD
Citation statistics
Document Type期刊论文
Identifierhttp://ir.sic.ac.cn/handle/331005/27337
Collection中国科学院上海硅酸盐研究所
Recommended Citation
GB/T 7714
Ai, Jianping,Lin, Chucheng,Liao, Weixiu,et al. Shape-controlled synthesis of bare ZnO nanomaterials with improved photoactivity and photostability[J]. MATERIALS SCIENCE AND TECHNOLOGY,2019,35(3):336.
APA Ai, Jianping.,Lin, Chucheng.,Liao, Weixiu.,Hu, Changyuan.,Zhou, Tao.,...&Li, Wenkui.(2019).Shape-controlled synthesis of bare ZnO nanomaterials with improved photoactivity and photostability.MATERIALS SCIENCE AND TECHNOLOGY,35(3),336.
MLA Ai, Jianping,et al."Shape-controlled synthesis of bare ZnO nanomaterials with improved photoactivity and photostability".MATERIALS SCIENCE AND TECHNOLOGY 35.3(2019):336.
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