Preparation of nano-divalent silver powder and its sterilization properties

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Shanghai Duojia Water Treatment Science and Technology Co. Ltd., Shanghai 200237, China [1 ]
不详 [2 ]
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Hua Dong Li Gong Da Xue/J East China Univ Sci Technol | 2008年 / 1卷 / 86-90期
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摘要：
The nano-divalent silver powder disinfectant of 20-100 nm in diameter containing 65% of Ag2O2 was prepared from the nano-divalent silver dispersion fluid. The most effective powder disinfectant was produced by water washing of the filtered particles to a near neutral pH, then soaking in 8.0 g/L of DJ2004 for 24 h and finally vacuum drying at 70°C for 3 h. Compared to the performance of other silver based disinfectant in the static sterilization experiments, the new nano-divalent silver powder is more effective and also more resistant to the interference due to chloride ions.
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