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231223s2010 xx |||||o 00| ||eng c |
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|a 10.1021/la902117c
|2 doi
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|a pubmed24n0647.xml
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|a (DE-627)NLM194016986
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|a (NLM)20038182
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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1 |
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|a Li, Yuanzhi
|e verfasserin
|4 aut
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|a Comparison of dye photodegradation and its coupling with light-to-electricity conversion over TiO(2) and ZnO
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|c 2010
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
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|2 rdacarrier
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|a Date Completed 02.03.2010
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|a Date Revised 21.11.2013
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|a published: Print
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|a Citation Status MEDLINE
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|a Through comparing the photocatalytic performance of microscale ZnO, nano ZnO, and Degussa P25 titania (P25), it was found that the microscale ZnO exhibited 2.6-35.7 times higher photocatalytic activity for the photodegradation of various dye pollutants than P25 under both UV-visible and visible irradiation and showed much better photostability than the nano ZnO. The photocatalysts were characterized with XRD, Raman, BET, DRUV-vis, adsorption of dye, photoelectrochemical measurement, and PL. The much higher photocataltyic activity of the microscale ZnO than P25 under UV-visible irradiation is attributed to the higher efficiency of generation, mobility, and separation of photoinduced electrons and holes. The much higher visible photocataltyic activity of the microscale ZnO than P25 is due to the higher photosensitization efficiency of electron transfer from an excited dye to the conduction band of the microscale ZnO than that of P25. The much better photostability of the microscale ZnO than the nano ZnO is due to its better crystallinity and lower defects. The photostability of the microscale ZnO is greatly improved by the surface modification of ZnO with a small amount of TiO(2). On the basis of the excellent photocatalytic performance of the microscale ZnO and TiO(2)-modified ZnO, a novel device of coupling photodegradation with light-to-electricity conversion was developed, which is a promising candidate for the photocatalytic removal of dye pollutants and a renewable energy source
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|a Comparative Study
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a Coloring Agents
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|a Environmental Pollutants
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|a titanium dioxide
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|a 15FIX9V2JP
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|a Titanium
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|a Zinc Oxide
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|a SOI2LOH54Z
|2 NLM
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|a Xie, Wei
|e verfasserin
|4 aut
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|a Hu, Xuelei
|e verfasserin
|4 aut
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|a Shen, Guofang
|e verfasserin
|4 aut
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|a Zhou, Xi
|e verfasserin
|4 aut
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|a Xiang, Ye
|e verfasserin
|4 aut
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|a Zhao, Xiujian
|e verfasserin
|4 aut
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|a Fang, Pengfei
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Langmuir : the ACS journal of surfaces and colloids
|d 1992
|g 26(2010), 1 vom: 05. Jan., Seite 591-7
|w (DE-627)NLM098181009
|x 1520-5827
|7 nnns
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| 773 |
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|g volume:26
|g year:2010
|g number:1
|g day:05
|g month:01
|g pages:591-7
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|u http://dx.doi.org/10.1021/la902117c
|3 Volltext
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