采用低温水热炭化法制备了载银活性炭(Ag/AC),以大肠杆菌(E.coli)为实验菌种,考察了不同载银量活性炭的灭菌性能和抗银流失性能.利用X射线衍射(XRD)、扫描电子显微镜(SEM)以及低温液氮吸附对载银活性炭进行表征.结果表明,负载银对活性炭的石墨微晶结构无影响.随着载银量的增加,负载到活性炭上的银晶粒变大,比表面积、孔容积和孔径均变小,抗菌性能提高,银流失量变化不明显,抗流失天数增多.经分析,载银量为1.54％(质量分数)Ag/AC3样品,比表面积为813.35 m2/g,100 min之内杀灭107 CFU/mL的大肠杆菌,9d内银流失量约为2.9％,可见,在保持较高比表面积的基础上,具备良好的抗菌性能和抗银流失性能.
参考文献
| [1] | 张慧书;王自强;王锐;刘守新.可见光响应杀菌功能活性炭的制备及表征[J].环境科学,2011(1):140-144. |
| [2] | H.Q. Tang;H. J. Feng;J.H. Zheng;J. Zhao.A study on antibacterial properties of Ag+-implanted pyrolytic carbon[J].Surface & Coatings Technology,20079/11(9/11):5633-5636. |
| [3] | 夏光华;赵晓东;廖润华.水处理用多孔悬浮陶粒表面磁/炭改性的应用研究[J].功能材料,2013(7):1024-1028. |
| [4] | Le Pape H;Solano-Serena F;Contini P;Devillers C;Maftah A;Leprat.Involvement of reactive oxygen species in the bactericidal activity of activated carbon fibre supporting silver bactericidal activity of ACF(Ag) mediated by ROS[J].Journal of Inorganic Biochemistry: An Interdisciplinary Journal,20046(6):1054-1060. |
| [5] | 万怡灶;王玉林;董向红;周福刚;成国祥;温廷益;韩森.AC及AC（Ag）对细菌的吸附及灭菌功能的对比研究[J].中国生物医学工程学报,2000(3):294-299. |
| [6] | 王广建;张健康;杨志坚;刘英环.活性炭负载银吸附剂的制备与脱除苯并噻吩的研究[J].功能材料,2013(7):949-953. |
| [7] | Wang YL.;Dong XH.;Cheng GX.;Tao HM.;Wen TY.;Wan YZ..Preparation and characterization of antibacterial viscose-based activated carbon fiber supporting silver[J].Carbon: An International Journal Sponsored by the American Carbon Society,199811(11):1567-1571. |
| [8] | Kim BJ;Park SJ.Antibacterial behavior of transition-metals-decorated activated carbon fibers[J].Journal of Colloid and Interface Science,20081(1):297-299. |
| [9] | Soo-Jin Park;Yu-Sin Jang.Preparation and characterization of activated carbon fibers supported with silver metal for antibacterial behavior[J].Journal of Colloid and Interface Science,20032(2):238-243. |
| [10] | Quiroga EN;Sampietro AR;Vattuone MA.Screening antifungal activities of selected medicinal plants.[J].Journal of Ethnopharmacology: An Interdisciplinary Journal Devoted to Bioscientific Research on Indigenous Drugs,20011(1):89-96. |
| [11] | 万连印.双硫腙-四氯化碳萃取分光光度法测定银[J].黄金,2006(06):54-56. |
| [12] | 曹云峰.紫外-可见光光谱法测定载银活性炭中的Ag+含量[J].煤化工,2006(03):50-52. |
| [13] | Shuixia Chen;Hanmin Zeng.Improvement of the reduction capacity of activated carbon fiber[J].Carbon: An International Journal Sponsored by the American Carbon Society,20036(6):1265-1271. |
| [14] | Grunwaldt JD.;Gobel U.;Baiker A.;Atamny F..PREPARATION OF THIN SILVER FILMS ON MICA STUDIED BY XRD AND AFM[J].Applied Surface Science: A Journal Devoted to the Properties of Interfaces in Relation to the Synthesis and Behaviour of Materials,19964(4):353-359. |
| [15] | Liu SW.;Chen SG.;Avivi S.;Gedanken A.;Huang WP..Synthesis of X-ray amorphous silver nanoparticles by the pulse sonoelectrochemical method[J].Journal of Non-Crystalline Solids: A Journal Devoted to Oxide, Halide, Chalcogenide and Metallic Glasses, Amorphous Semiconductors, Non-Crystalline Films, Glass-Ceramics and Glassy Composites,20011/3(1/3):231-236. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%