Photocatalysis using ZnO thin films and nanoneedles grown by metal-organic chemical vapor deposition

被引:456
作者
Yang, JL
An, SJ
Park, WI
Yi, GC [1 ]
Choi, W
机构
[1] Pohang Univ Sci & Technol, Natl CRI Ctr Semicond Nanorods, Pohang 790784, Gyeongbuk, South Korea
[2] Pohang Univ Sci & Technol, Dept Mat Sci & Engn, Pohang 790784, Gyeongbuk, South Korea
[3] POSTECH, Sch Environm Sci & Engn, Pohang 790784, Gyeongbuk, South Korea
关键词
D O I
10.1002/adma.200306673
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Highly efficient photocatalytic ZnO nanoneedle arrays with a large surface/volume ratio were prepared on inexpensive, large-area substrates using metal-organic chemical vapor deposition. The photocatalytic activity of ZnO nanoneedle arrays is much enhanced due to their increased surface/volume ratio. It is believed that the "bottom-up" approach may be expanded to create many other one-dimensional oxide semiconductor nanostructures (see Figure).
引用
收藏
页码:1661 / +
页数:5
相关论文
共 10 条
[1]   Gold/titania core/sheath nanowires prepared by layer-by-layer assembly [J].
Guo, YG ;
Wan, LJ ;
Bai, CL .
JOURNAL OF PHYSICAL CHEMISTRY B, 2003, 107 (23) :5441-5444
[2]   ENVIRONMENTAL APPLICATIONS OF SEMICONDUCTOR PHOTOCATALYSIS [J].
HOFFMANN, MR ;
MARTIN, ST ;
CHOI, WY ;
BAHNEMANN, DW .
CHEMICAL REVIEWS, 1995, 95 (01) :69-96
[3]   A "sense and shoot" approach for photocatalytic degradation of organic contaminants in water [J].
Kamat, PV ;
Huehn, R ;
Nicolaescu, R .
JOURNAL OF PHYSICAL CHEMISTRY B, 2002, 106 (04) :788-794
[4]   An overview of semiconductor photocatalysis [J].
Mills, A ;
LeHunte, S .
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY, 1997, 108 (01) :1-35
[5]   ZnO nanoneedles grown vertically on Si substrates by non-catalytic vapor-phase epitaxy [J].
Park, WI ;
Yi, GC ;
Kim, MY ;
Pennycook, SJ .
ADVANCED MATERIALS, 2002, 14 (24) :1841-1843
[6]   Excitonic emissions observed in ZnO single crystal nanorods [J].
Park, WI ;
Jun, YH ;
Jung, SW ;
Yi, GC .
APPLIED PHYSICS LETTERS, 2003, 82 (06) :964-966
[7]   Metalorganic vapor-phase epitaxial growth of vertically well-aligned ZnO nanorods [J].
Park, WI ;
Kim, DH ;
Jung, SW ;
Yi, GC .
APPLIED PHYSICS LETTERS, 2002, 80 (22) :4232-4234
[8]   Photoluminescent properties of ZnO thin films grown on SiO2/Si(100) by metal-organic chemical vapor deposition [J].
Park, WI ;
Yi, GC .
JOURNAL OF ELECTRONIC MATERIALS, 2001, 30 (10) :L32-L35
[9]   Photocatalysis of sculptured thin films of TiO2 [J].
Suzuki, M ;
Ito, T ;
Taga, Y .
APPLIED PHYSICS LETTERS, 2001, 78 (25) :3968-3970
[10]   Semiconductor nanowire array: potential substrates for photocatalysis and photovoltaics [J].
Wu, YY ;
Yan, HQ ;
Yang, PD .
TOPICS IN CATALYSIS, 2002, 19 (02) :197-202