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Author(s): |
Xiao-xi Liang, College of Chem.& Life Science, Zhejiang Normal Univ., Jinhua, China, 321004
Bin Hao, College of Chem.& Life Science, Zhejiang Normal Univ., Jinhua, China, 321004
Liang-chao Li, College of Chem.& Life Science, Zhejiang Normal Univ., Jinhua, China, 321004
Ke-yu Chen, College of Chem.& Life Science, Zhejiang Normal Univ., Jinhua, China, 321004
Qin Zhou, College of Chem.& Life Science, Zhejiang Normal Univ., Jinhua, China, 321004 |
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Abstract: |
A citrate sol-gel method is applied to synthesize Cu2+ doped ZnO nanocomposites (CuxZn1-xO, x=0.02, 0.05, 0.08, 0.1). The phase, structure and morphology of the synthesized nanoparticles are chacracterized by XRD, SEM and TEM techniques. The results shown that the CuxZn1-xO nano-powders had hexagonal wurtzite structure and their average grain size was 25~35 nm. Antibacterial test shown that CuxZn1-xO nano-powders exhibited excellent antibacterial effects against escherichia coli, staphylococcus aureus and candida albicans, and their antibacterial activity was enhanced with increase of Cu2+ content in the CuxZn1-xO. The minimum inhibitory concentration (MIC) of Cu0.1Zn0.9O to sscherichia coli, staphylococcus aureus and candida albicans was 50 mg/L, 50 mg/L and 25 mg/L respectively. CuxZn1-xO nano- powders had much more bactericide effects than ordinary inorganic antimicrobial．
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