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231224s2014 xx |||||o 00| ||eng c |
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|a 10.1021/la500167a
|2 doi
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|a pubmed24n0786.xml
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|a (NLM)24588721
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|a DE-627
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|e rakwb
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|a eng
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|a Sharma, Manu
|e verfasserin
|4 aut
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|a Design of porous silica supported tantalum oxide hollow spheres showing enhanced photocatalytic activity
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|c 2014
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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 12.11.2014
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|a Date Revised 02.12.2018
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a Silica-supported tantalum oxide (ST) hollow spheres were designed for photocatalytic applications in the UV range of 4.1 to 4.8 eV. These nanostructures with a variable diameter of 100-250 nm and shell thickness of 24-58 nm were obtained by the hydrothermal treatment of tantalum isopropoxide and tetraethylorthosilicate at 120 °C for 48 h in the presence of cetyl trimethyl ammonium bromide, which was used as a capping agent. The maximum observed surface area was found to be 610 m(2)/g and pore size distribution of ST hollow spheres varied from 13.4 to 19.0 nm. Lewis acidity of silica and the contact area between SiO2 and Ta2O5 plays a crucial role in controlling the photocatalytic properties of the ST hollow spheres. We observe a remarkable 6× enhancement in the photoactivity of silica-supported tantalum oxide hollow spheres compared to pure Ta2O5
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a Cetrimonium Compounds
|2 NLM
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|a Oxides
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|a Tantalum
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|a 6424HBN274
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|a Silicon Dioxide
|2 NLM
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|a 7631-86-9
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|a Ammonia
|2 NLM
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|a 7664-41-7
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|a tantalum oxide
|2 NLM
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|a Cetrimonium
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|a Z7FF1XKL7A
|2 NLM
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|a Das, Debashree
|e verfasserin
|4 aut
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|a Baruah, Arabinda
|e verfasserin
|4 aut
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|a Jain, Archana
|e verfasserin
|4 aut
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|a Ganguli, Ashok K
|e verfasserin
|4 aut
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|i Enthalten in
|t Langmuir : the ACS journal of surfaces and colloids
|d 1992
|g 30(2014), 11 vom: 25. März, Seite 3199-208
|w (DE-627)NLM098181009
|x 1520-5827
|7 nnns
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|g volume:30
|g year:2014
|g number:11
|g day:25
|g month:03
|g pages:3199-208
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|u http://dx.doi.org/10.1021/la500167a
|3 Volltext
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