Preparation and characterization of antibacterial silver-dispersed activated carbon aerogels

详细信息	查看全文 | 推荐本文 |

• 作者：Zhang ; Shuting ; Fu ; Ruowen ; Wu ; Dingcai ; Xu ; Wei ; Ye ; Qiwei ; Chen ; Zhangliu
• 关键词：A. Carbon aerogel ; B. Activation ; C. BET surface area ; X-ray diffraction ; Electron microscopy
• 刊名：Carbon
• 出版年：2004
• 期刊代码：10_00086223
• 类别：ms
• 出版时间：2004
• 卷：42
• 期：15
• 页码：3209-3216
• 文件大小：390 K

摘要

Silver-dispersed carbon aerogels (CAs) were obtained by direct immersion of organic aerogels prepared by ambient pressure drying technique in AgNO₃ aqueous solution and then carbonization. The effect of preparation conditions such as the resorcinol/catalyst ratio, the feed AgNO₃ concentration, the ratio of aerogel mass/solution volume, immersion time and carbonization temperature on the bulk density and silver content as well as the BET surface area of the dispersed CAs was studied. The dispersion and structure of silver nanoparticles in obtained materials were investigated by means of scanning electron microscopy, transmission electron microscopy and X-ray diffraction. The Ag-dispersed CAs prepared exhibit strong and long-term antibacterial activity.