Ordered TiO2 nanotubes: The effect of preparation parameters on the photocatalytic activity in air purification process

被引:113
作者
Nischk, Michal [1 ]
Mazierski, Pawel [1 ]
Gazda, Maria [2 ]
Zaleska, Adriana [1 ]
机构
[1] Gdansk Univ Technol, Fac Chem, Dept Chem Technol, PL-80233 Gdansk, Poland
[2] Gdansk Univ Technol, Fac Appl Phys & Math, Dept Solid State Phys, PL-80233 Gdansk, Poland
关键词
TiO2; nanotubes; Oxidative anodization; Heterogeneous photocatalysis; Air treatment; LEDs; INDOOR AIR; ANODIZATION; DEGRADATION; TITANIUM; REMOVAL; TOLUENE; ARRAYS; RATIO;
D O I
10.1016/j.apcatb.2013.07.041
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Vertically ordered TiO2 nanotube arrays were synthesized by anodic oxidation of titanium foil in glycerol, ethylene glycol and water-based electrolytes. The effect of electrolyte composition, anodization voltage, ultrasonic treatment and calcination time on the morphology of the resulting thin films, as well as on their photocatalytic activity in toluene removal, used as a model volatile organic compound, was investigated. Toluene, at the concentration of about 100 ppm, was irradiated over TiO2 nanotube arrays using xenon lamp and light-emitting diodes (LEDs) in four subsequent cycles. The results showed that toluene could be mostly removed from the air after 30 min of irradiation over TiO2 nanotubes (NTs), even using LEDs (375 nm) as a irradiation source. Photoactivity increased with increasing of nanotubes lengths and decreasing of crystallite size. Thus, TiO2 nanotube arrays formed in ethylene glycol-based electrolyte by applying voltage of 40V, followed by 1-h calcination at 450 degrees C, revealed the highest photoactivity and may be used several times without any significant decrease in activity. (C) 2013 Elsevier B.V. All rights reserved.
引用
收藏
页码:674 / 685
页数:12
相关论文
共 38 条
[1]   H2 and O2 photocatalytic production on TiO2 nanotube arrays: Effect of the anodization time on structural features and photoactivity [J].
Altomare, Marco ;
Pozzi, Michele ;
Allieta, Mattia ;
Bettini, Luca Giacomo ;
Selli, Elena .
APPLIED CATALYSIS B-ENVIRONMENTAL, 2013, 136 :81-88
[2]   Ta-Doped TiO2 Nanotubes for Enhanced Solar-Light Photoelectrochemical Water Splitting [J].
Altomare, Marco ;
Lee, Kiyoung ;
Killian, Manuela S. ;
Selli, Elena ;
Schmuki, Patrik .
CHEMISTRY-A EUROPEAN JOURNAL, 2013, 19 (19) :5841-5844
[3]   Photocatalyst TiO2 supported on glass fiber for indoor air purification:: effect of NO on the photodegradation of CO and NO2 [J].
Ao, CH ;
Lee, SC ;
Yu, JC .
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY, 2003, 156 (1-3) :171-177
[4]   Size-effects in TiO2 nanotubes: Diameter dependent anatase/rutile stabilization [J].
Bauer, Sebastian ;
Pittrof, Andreas ;
Tsuchiya, Hiroaki ;
Schmuki, Patrik .
ELECTROCHEMISTRY COMMUNICATIONS, 2011, 13 (06) :538-541
[5]   UV-PCO device for indoor VOCs removal: Investigation on multiple compounds effect [J].
Chen, Wenhao ;
Zhang, Jianshun S. .
BUILDING AND ENVIRONMENT, 2008, 43 (03) :246-252
[6]   Nb doped TiO2 nanotubes for enhanced photoelectrochemical water-splitting [J].
Das, Chittaranjan ;
Roy, Poulomi ;
Yang, Min ;
Jha, Himendra ;
Schmuki, Patrik .
NANOSCALE, 2011, 3 (08) :3094-3096
[7]   Kinetics of photocatalytic VOCs abatement in a standardized reactor [J].
Doucet, N. ;
Bocquillon, F. ;
Zahraa, O. ;
Bouchy, M. .
CHEMOSPHERE, 2006, 65 (07) :1188-1196
[8]  
DYTRYCH W, 2012, Patent No. 401627
[9]   Ion implantation and annealing for an efficient N-doping of TiO2 nanotubes [J].
Ghicov, Andrei ;
Macak, Jan M. ;
Tsuchiya, Hiroaki ;
Kunze, Julia ;
Haeublein, Volker ;
Frey, Lothar ;
Schmuki, Patrik .
NANO LETTERS, 2006, 6 (05) :1080-1082
[10]   Controlling Morphological Parameters of Anodized Titania Nanotubes for Optimized Solar Energy Applications [J].
Haring, Andrew ;
Morris, Amanda ;
Hu, Michael .
MATERIALS, 2012, 5 (10) :1890-1909