Synthesis, characterization and antimicrobial activity of zinc and cerium co-doped α-zirconium phosp

• 作 者: 代光剑 于爱丽 蔡祥 施庆珊 欧阳友生 谭绍早
• 机 构: State Key Laboratory of Applied Microbiology (Ministry—Guangdong Province Jointly Breeding Base), So
• 出 处: Journal of Rare Earths
• 发表日期: 2012年08期
• 关键词: antibacterial cerium Synthesis synergistic microbial adsorbed zirconium silver i

A series of zinc ions or/and cerium ions co-doped α-zirconium phosphate (Zn-Ce@ZrPs) were prepared. The novel Zn-Ce@ZrPs were characterized and the antibacterial activity on Gram-negative Escherichia coli and Gram-positive Staphylococcus aureus were tested. The results showed that zinc ions (Zn2+) or/and cerium ions (Ce3+) were combined with ZrP, and the Ce3+ was adsorbed on the surface of ZrP through hydrogen bonds, while Zn2+ intercalated into the interlayer of ZrP. Zn-Ce@ZrPs showed excellent synergistic antibacterial activity. When Zn2+/Ce3+ atomic ratio was 0.6, the Zn-Ce@ZrP3 showed the highest synergistic antibacterial efficiency, suggesting great potential application as antibacterial agents in microbial control.

The novel Zn-Ce @ ZrPs were characterized and the antibacterial activity on Gram-negative Escherichia coli and Gram-positive Staphylococcus aureus were tested. The results showed that zinc ions (Zn2 +) or / and cerium ions (Ce3 +) were combined with ZrP, and the Ce3 + was adsorbed on the surface of ZrP through hydrogen bonds, while Zn2 + intercalated into the interlayer of ZrP. When Zn2 ​​+ / Ce3 + atomic ratio was 0.6, the Zn-Ce @ ZrP3 showed the highest synergistic antibacterial efficiency, suggesting great potential application as antibacterial agents in microbial control.