Synthesis of Na-doped ZnO nanowires and their antibacterial properties

被引:28
作者
Wu, Changle [1 ]
Shen, Li [2 ]
Huang, Qingli [1 ]
Zhang, Yong-Cai [2 ]
机构
[1] Yangzhou Univ, Testing Ctr, Yangzhou 225009, Jiangsu, Peoples R China
[2] Yangzhou Univ, Coll Chem & Chem Engn, Yangzhou 225002, Peoples R China
关键词
ZnO; Chemical synthesis; Antibacterial properties; OPTICAL-PROPERTIES; ZINC; LUMINESCENT; FILMS; NANOSTRUCTURES;
D O I
10.1016/j.powtec.2010.09.003
中图分类号
TQ [化学工业];
学科分类号
0817 ;
摘要
Na-doped ZnO nanowires with an average diameter of similar to 40 nm have been fabricated by a thermal decomposition route at temperatures around 400 degrees C. Their properties have been investigated using X-ray diffraction, field emission scanning electron microscope, Raman spectra, photoluminescence spectra and Xray photoelectron spectra. Photoluminescence spectra showed that the as-synthesized ZnO samples exhibited strong visible emission with a major peak at 420 nm. Furthermore, intensity of the visible emission at 420 nm enhanced as the increase of Na concentration. The improvement of visible emission in the Na-doped ZnO samples should be a result of the surface defects increased by doping of Na in ZnO. Their antibacterial activities were also evaluated by determination of minimum inhibitory concentration (MIC) against Escherichia coli 25922 in vitro. Antibacterial tests indicated these nanomaterials showed good antibacterial properties after UV illumination for a short time. (C) 2010 Elsevier B.V. All rights reserved.
引用
收藏
页码:137 / 142
页数:6
相关论文
共 41 条
[1]   RESONANT RAMAN-SCATTERING IN ZNO [J].
CALLEJA, JM ;
CARDONA, M .
PHYSICAL REVIEW B, 1977, 16 (08) :3753-3761
[2]   Near UV emission and p-type conductivity in Zn1-xLixO and Zn1-xNaxO nanomaterial system [J].
Chawla, Santa ;
Jayanthi, K. ;
Khan, Zahid H. ;
Shah, Jyoti ;
Kotnala, R. K. .
MATERIALS & DESIGN, 2010, 31 (04) :1666-1670
[3]   Luminescence enhancement in ZnO nanocrystals by polarized light [J].
Chawla, Santa ;
Karar, N. ;
Chander, Harish .
PHYSICA B-CONDENSED MATTER, 2010, 405 (01) :198-203
[4]   Effect of N2 flow rate on morphology and structure of ZnO nanocrystals synthesized via vapor deposition [J].
Chen, Z ;
Wu, NQ ;
Shan, ZW ;
Zhao, MH ;
Li, SX ;
Jiang, CB ;
Chyu, MK ;
Mao, SX .
SCRIPTA MATERIALIA, 2005, 52 (01) :63-67
[5]   Production and recovery of defects in phosphorus-implanted ZnO [J].
Chen, ZQ ;
Kawasuso, A ;
Xu, Y ;
Naramoto, H ;
Yuan, XL ;
Sekiguchi, T ;
Suzuki, R ;
Ohdaira, T .
JOURNAL OF APPLIED PHYSICS, 2005, 97 (01)
[6]  
[楚珑晟 Chu Longcheng], 2003, [材料导报, Materials Review], V17, P84
[7]   RAMAN EFFECT IN ZINC OXIDE [J].
DAMEN, TC ;
PORTO, SPS ;
TELL, B .
PHYSICAL REVIEW, 1966, 142 (02) :570-&
[8]   Photoluminescence and electron paramagnetic resonance of ZnO tetrapod structure [J].
Djurisic, AB ;
Choy, WCH ;
Roy, VAL ;
Leung, YH ;
Kwong, CY ;
Cheah, KW ;
Rao, TKG ;
Chan, WK ;
Lui, HT ;
Surya, C .
ADVANCED FUNCTIONAL MATERIALS, 2004, 14 (09) :856-864
[9]   Optical properties of ZnO nanostructures [J].
Djurisic, Aleksandra B. ;
Leung, Yu Hang .
SMALL, 2006, 2 (8-9) :944-961
[10]   Antibacterial activities of inorganic agents on six bacteria associated with oral infections by two susceptibility tests [J].
Fang, Ming ;
Chen, Ji-Hua ;
Xu, Xiu-Li ;
Yang, Pei-Hong ;
Hildebrand, Hartmut F. .
INTERNATIONAL JOURNAL OF ANTIMICROBIAL AGENTS, 2006, 27 (06) :513-517