Hybrid ZnO/TiO2 Loaded in Electrospun Polymeric Fibers as Photocatalyst

被引:35
作者
Araujo, Evando S. [1 ,2 ]
Libardi, Juliano [2 ,3 ]
Faia, Pedro M. [2 ]
de Oliveira, Helinando P. [1 ]
机构
[1] Fed Univ Sao Francisco Valley, Inst Mat Sci, BR-48920310 Juazeiro, BA, Brazil
[2] Univ Coimbra, Fac Sci & Technol, Elect & Comp Engn Dept, CEMUC, P-3030290 Coimbra, Portugal
[3] Technol Inst Aeronaut ITA, Dept Phys, BR-12228900 Sao Jose Dos Campos, SP, Brazil
关键词
ZNO NANOCRYSTALS; OPTICAL PHONONS; AT-AG; TIO2; ANATASE; PHOTODEGRADATION; DEGRADATION; OXYGEN; PHASE; PRESSURE;
D O I
10.1155/2015/476472
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Hybrid ZnO/TiO2 nanoparticles were applied as potential photocatalyst agents incorporated into electrospun fibers of enteric block copolymers. The resistance of fibers avoids aggregation and contributes to prolonged action of semiconductor nanoparticles under continuous light irradiation. Such behavior is attributed to the minimal aggregation degree and elevated efficiency of photodegradation of modified nanoparticles in comparison with pristine ones. Hybrid ZnO/TiO2 in nanofibers contributes to the association of different mechanisms such as N-deethylation and cleavage of dye molecules applied in the overall process of photodegradation.
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页数:10
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共 59 条
[1]   Photocatalytic decolorization of remazol red RR in aqueous ZnO suspensions [J].
Akyol, A ;
Yatmaz, HC ;
Bayramoglu, M .
APPLIED CATALYSIS B-ENVIRONMENTAL, 2004, 54 (01) :19-24
[2]   Micro-Raman investigation of optical phonons in ZnO nanocrystals [J].
Alim, KA ;
Fonoberov, VA ;
Shamsa, M ;
Balandin, AA .
JOURNAL OF APPLIED PHYSICS, 2005, 97 (12)
[3]   Long-lived (minutes) photoinduced charge separation in a structured periodic mesoporous titania containing 2,4,6-triphenylpyrylium as guest [J].
Aprile, Carmela ;
Maretti, Luca ;
Alvaro, Mercedes ;
Scaiano, J. C. ;
Garcia, Hermenegildo .
DALTON TRANSACTIONS, 2008, (40) :5465-5470
[4]  
Araújo ES, 2013, FIBRES TEXT EAST EUR, V21, P39
[5]   Creation of DICOM - Aware applications using ImageJ [J].
Barboriak, DP ;
Padua, AO ;
York, GE ;
MacFall, JR .
JOURNAL OF DIGITAL IMAGING, 2005, 18 (02) :91-99
[6]   Photocatalytic degradation of organic molecules in water: Photoactivity and reaction paths in relation to TiO2 particles features [J].
Bernardini, Cecilia ;
Cappelletti, Giuseppe ;
Dozzi, Maria Vittoria ;
Selli, Elena .
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY, 2010, 211 (2-3) :185-192
[7]   Synthesis and dielectric investigations of ZnTiO3 obtained by a soft chemistry route [J].
Bobowska, Izabela ;
Opasinska, Agnieszka ;
Wypych, Aleksandra ;
Wojciechowski, Piotr .
MATERIALS CHEMISTRY AND PHYSICS, 2012, 134 (01) :87-92
[8]   Photocatalytic degradation of model textile dyes in wastewater using ZnO as semiconductor catalyst [J].
Chakrabarti, S ;
Dutta, BK .
JOURNAL OF HAZARDOUS MATERIALS, 2004, 112 (03) :269-278
[9]   Optical and structural properties of ZnO/TiO2/ZnO multi-layers prepared via electron beam evaporation [J].
Choi, Won Seok ;
Kim, Eui Jung ;
Seong, Seung Gie ;
Kim, Yong Soo ;
Park, Chinho ;
Hahn, Sung Hong .
VACUUM, 2009, 83 (05) :878-882
[10]   ImageJ for microscopy [J].
Collins, Tony J. .
BIOTECHNIQUES, 2007, 43 (01) :25-+