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Author(s): |
Bao-xiang Wang, College of Materials Science and Engineering,Qingdao University of Science and Technology, Qingdao 266042, China
Yi-chao Yin, College of Materials Science and Engineering,Qingdao University of Science and Technology, Qingdao 266042, China
Shou-shan Yu, College of Materials Science and Engineering,Qingdao University of Science and Technology, Qingdao 266042, China
Ke-zheng Chen, College of Materials Science and Engineering,Qingdao University of Science and Technology, Qingdao 266042, China |
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Abstract: |
Inorganic antibacterial agent recently become a hotpot due to its effective, inexpensive, stable feature. Through an intercalation method, AgNO3 and clay (bentonite) as raw materials was used to synthesis the clay/silver anti-bacterial nanocomposite. Clay/silver anti-bacterial nanocomposite was characterized by X-ray diffraction analysis (XRD), transmission electron microscopy (TEM) and UV-visible analysis (UV-vis), and their antibacterial properties are also studied. Through the ion exchange reaction, Ag+ can be directly intercalated into the interlayer of bentonite. The (001) interlayer space is also increased from 1.25nm to 1.48nm. TEM photos show that the loading Ag nanoparticles on bentonite have the unique size between 20-30 nm. The antibacterial properties of clay/Ag nanocomposite against E. coli were studied. The results showed that the nano-clay as matrix composite particles have a very good antibacterial antibacterial activity, its antibacterial ratio is above 98.5%.
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