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¸÷Î»ÍøÓÑ£¬ÕâÀïÓÐÆªpaper£¬ÎªHierarchical Ag2O-ZnO-Fe3O4 composites with enhanced visible-light photocatalytic activity. Journal of Alloys and Compounds 2015£¬644: 334-340.
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caiaijun80: ½ð±Ò+20, ¡ï¡ï¡ï¡ï¡ï×î¼Ñ´ð°¸ 2015-08-27 09:22:30
lazy½õϪ: LS-EPI+1, ¸ÐлӦÖú 2015-08-27 09:27:24
Hierarchical Ag2O-ZnO-Fe3O4 composites with enhanced visible-light photocatalytic activity
×÷Õß: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
¾í: 644  Ò³: 334-340
DOI: 10.1016/j.jallcom.2015.03.236
³ö°æÄê: SEP 25 2015
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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.
¹Ø¼ü´Ê
×÷Õ߹ؼü´Ê:Ag2O-ZnO-Fe3O4; Composites; Structures; Photocatalytic activity
KeyWords Plus:ZNO; PERFORMANCE; NANOCOMPOSITES; WATER; PHOTODEGRADATION; NANOPARTICLES; DEGRADATION; SUSPENSIONS; FABRICATION; ULTRAVIOLET
×÷ÕßÐÅÏ¢
ͨѶ×÷ÕßµØÖ·: Wang, XP (ͨѶ×÷Õß)
              Hebei Normal Univ Sci & Technol, Coll Life Sci & Technol, Qinhuangdao 066600, Peoples R China.
µØÖ·:
              [ 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
µç×ÓÓʼþµØÖ·:wangxiuping0721@163.com
»ù½ð×ÊÖúÖÂл
»ù½ð×ÊÖú»ú¹¹        ÊÚȨºÅ
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
²é¿´»ù½ð×ÊÖúÐÅÏ¢   
³ö°æÉÌ
ELSEVIER SCIENCE SA, PO BOX 564, 1001 LAUSANNE, SWITZERLAND
Àà±ð / ·ÖÀà
Ñо¿·½Ïò:Chemistry; Materials Science; Metallurgy & Metallurgical Engineering
Web of Science Àà±ð:Chemistry, Physical; Materials Science, Multidisciplinary; Metallurgy & Metallurgical Engineering
ÎÄÏ×ÐÅÏ¢
ÎÄÏ×ÀàÐÍ:Article
ÓïÖÖ:English
Èë²ØºÅ: WOS:000357143900050
ISSN: 0925-8388
eISSN: 1873-4669
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Impact Factor (Ó°ÏìÒò×Ó): Journal Citation Reports®
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IDS ºÅ: CL7HU
Web of Science ºËÐĺϼ¯ÖÐµÄ "ÒýÓõIJο¼ÎÄÏ×": 33
Web of Science ºËÐĺϼ¯ÖÐµÄ "±»ÒýƵ´Î": 0
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