复合金属离子抗菌沸石的制备及研究

以13X沸石为载体,用不同的方法制备了四类金属离子抗菌沸石.用WAXD、EDS、AAS、抑菌环法等表征了抗菌沸石的结构、抗菌金属离子相对含量和抗菌性能.结果表明,金属离子交换过程没有改变13X的基本结构,进入13X的抗菌金属离子具有缓释性. 采用复合离子交换法制备的多金属的含银抗菌沸石具有最佳抑菌性能,其相对抗菌强度优于阳性对照AGZ-330,且成本较低.复合金属离子抗菌沸石较高的多种抗菌离子含量及缓释能力具有协同抑菌作用和广谱抑菌性.

Preparation and Study on Composite Metal Ion Antibacterial Zeolites

The four categories of antibacterial zeolites were prepared by different methods with 13X zeolite as their carrier, and their structures and properties were characterized by WAXD, EDS, AAS and bacteriostasis circle tests. The results show that the basic structure of 13X does not change in the process of the cation exchange, and the cations absorbed by 13X can be slowly released into medium. The composite metal zeolites contained Ag+ cations prepared by the method of composite cations exchange are optimum in antibacterial performance and superior to AGZ-330 antibacterial agent in their bacteriostasis and cost. The composite metal ions zeolites have better slowly release effect and high content of cations killing bacterials more effectly due to their synergistic effect and broad spectrum antibacterial properties.