Antibacterial Activities of Doped ZnO Nano-Powder with M2+(M=Cu, Cd, Ag and Fe)

作者：Ding Yan; Ma Ge; Li Liang Chao^*; Wang Yu Huan; Chen Yao Yao; Wu Xue

来源：Chinese Journal of Inorganic Chemistry, 2014, 30(2): 293-302.

• sol-gel method
• ZnO nanopowder
• doping
• antibacterial activity

ZnO and doped ZnO nano-powder with M2+(M=Cu, Cd, Ag and Fe) were synthesized by citrate Sol-gel method. The composition,structures and morphology of the samples were characterized by means of modern testing techniques. The antibacterial activities of the samples against Staphylococcus aureus, Escherichia coli and Candida albicans were carried out using inhibition zone, minimum inhibitory concentration and minimal bactericidal concentrations methods in the sunlight. Results showed that the antibacterial activity of samples doped with Cu, Cd and Ag enhanced obviously compared to ZnO, which may be because that the lattice and charge defects produced by M2+ ions replaced Zn2+ prevented the photogenerated holes and electrons from recombining and enhanced the photocatalytic activity and antibacterial activity.

• 出版日期2014-2-10
• 单位浙江师范大学