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【答案】应助回帖
★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★
感谢参与，应助指数 +1
caiaijun80: 金币+20, ★★★★★最佳答案 2015-08-27 09:22:30
lazy锦溪: LS-EPI+1, 感谢应助 2015-08-27 09:27:24
Hierarchical Ag2O-ZnO-Fe3O4 composites with enhanced visible-light photocatalytic activity
作者:Cai, AJ (Cai, Aijun)[ 1 ] ; Sun, YF (Sun, Yanfeng)[ 2 ] ; Du, LQ (Du, Liqiang)[ 1 ] ; Wang, XP (Wang, Xiuping)[ 1 ]
JOURNAL OF ALLOYS AND COMPOUNDS
卷: 644 页: 334-340
DOI: 10.1016/j.jallcom.2015.03.236
出版年: SEP 25 2015
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摘要
Efficient visible-light-driven Ag2O-ZnO-Fe3O4 photocatalysts with hierarchical structures are synthesized. The as-prepared products are characterized by X-ray diffraction (XRD), transmission electron microscope (TEM), X-ray photoelectron spectroscopy (XPS), and diffuse reflectance spectra (DRS). XRD and XPS confirm the presence of Ag2O. DRS reveals that the adsorption edge of the Ag2O-ZnO-Fe3O4 photocatalysts is redshifted as compared with that of the ZnO-Fe3O4. Visible-light photocatalytic experiments are also conducted. By coupling with Ag2O, ZnO became responsive to visible light. The results show that the photocatalytic activity of the products is closely related to the mass ratio of Ag2O and ZnO, which is tunable and controlled by the amount of AgNO3 added during the fabrication process. The highest photocatalytic activity of the Ag2O-ZnO-Fe3O4 composites is achieved by adding 1.2 mol of AgNO3. The enhancement of photocatalytic activity can be attributed to the inhibition of electron-hole recombination. Furthermore, the as-prepared products can be easily attracted by an external magnetic field, which makes the composites recyclable. (C) 2015 Elsevier B.V. All rights reserved.
关键词
作者关键词:Ag2O-ZnO-Fe3O4; Composites; Structures; Photocatalytic activity
KeyWords Plus:ZNO; PERFORMANCE; NANOCOMPOSITES; WATER; PHOTODEGRADATION; NANOPARTICLES; DEGRADATION; SUSPENSIONS; FABRICATION; ULTRAVIOLET
作者信息
通讯作者地址: Wang, XP (通讯作者)
Hebei Normal Univ Sci & Technol, Coll Life Sci & Technol, Qinhuangdao 066600, Peoples R China.
地址:
[ 1 ] Hebei Normal Univ Sci & Technol, Coll Life Sci & Technol, Qinhuangdao 066600, Peoples R China
[ 2 ] Hebei Agr Univ, Ocean Coll, Qinhuangdao 066003, Peoples R China
电子邮件地址:wangxiuping0721@163.com
基金资助致谢
基金资助机构 授权号
National Natural Science Foundation of China
51402087
Natural Science Foundation of Hebei Province
C2014407008
Program for the Top Young Talents of Higher Learning Institutions of Hebei
BJ2014026
PhD Research Startup Foundation of Hebei University of Science & Technology, China
2014YB002
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出版商
ELSEVIER SCIENCE SA, PO BOX 564, 1001 LAUSANNE, SWITZERLAND
类别 / 分类
研究方向:Chemistry; Materials Science; Metallurgy & Metallurgical Engineering
Web of Science 类别:Chemistry, Physical; Materials Science, Multidisciplinary; Metallurgy & Metallurgical Engineering
文献信息
文献类型:Article
语种:English
入藏号: WOS:000357143900050
ISSN: 0925-8388
eISSN: 1873-4669
期刊信息
目录： Current Contents Connect®
Impact Factor (影响因子): Journal Citation Reports®
其他信息
IDS 号: CL7HU
Web of Science 核心合集中的 "引用的参考文献": 33
Web of Science 核心合集中的 "被引频次": 0 |
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