Ag-doped antibacterial porous materials with slow release of silver ions |
| |
| Authors: | Hairong Liu Qi Chen Li Song Reifang Ye Jianying Lu Huiping Li |
| |
| Institution: | 1. Department of Inorganic Materials, East China University of Science and Technology, Shanghai 200237, China;2. Department of Microbiology, East China University of Science and Technology, Shanghai 200237, China;1. Chinese Academy of Sciences (CAS) and Shanghai Institute of Optics and Fine Mechanics, Shanghai, China;2. J.J. Thomson Physical Laboratory, University of Reading, Reading, UK;3. Shanghai Institute of Optics and Fine Mechanics, Shanghai, China |
| |
| Abstract: | The inorganic–organic hybrids of polyethyleneglycol (PEG), tetraethoxysilane (TEOS) and triethylphosphate (TEP) doped by silver ions were prepared by sol–gel method. After molding and heating at 600 °C to remove organic components, porous Ag–P2O5–SiO2 monoliths were obtained. Thermogravimetry (TG), differential thermal analysis (DTA), infrared spectra, ultraviolet–visible (UV–vis) spectra and pore structure of the samples were measured to show that organic components and residual water could be removed by a heat-treatment up to 600 °C and the mesopores with 6 nm pore diameter were formed. Specific surface area and pore volume of the samples were adjusted with different contents of TEP in the starting composition. Ag+ ions could be stably released into water at 30 °C up to 28 days. Antibacterial experiment showed that such materials treated at 600 °C could restrain Escherichia coli effectively. |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
