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1篇 您的检索式:作者名="Dunhua Hong"
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1Antibacterial activity of Cu_2O and Ag co-modified rice grains-like ZnO nanocomposites显示文摘In this work, a series of Cu_2O-Ag/ZnO, Cu_2O/ZnO and Ag/ZnO nanocomposites with various compositions were prepared via a hydrothermal method followed by chemical modification, and their antibacterial performance was investigated in detail. X-ray powder diffraction, scanning electron microscopy and transmission electron microscopy results confirmed that 31 nm Cu20 and 30 nm Ag nanoparticles are well-dispersed on 202 nm ZnO grains to form a Cu_2O/ZnO and Ag/ZnO heterojunction, respectively. The bi-heterojuction structure in the Cu20-Ag/ZnO provided a synergistic effect on antibacterial activity, and the(Cu_2O)_(0.04)Ag_(0.06)ZnO_(0.9) nanocomposites showed the highest antimicrobial activity of all samples with minimum inhibitory concentration and minimum bactericidal concentration against Escherichia coli and Staphylococcus aureus as low to 31.25 μg/mL, 250μg/mL, 125μg/mL and 500μg/mL, respectively. This is the first report of the antibacterial activities of Cu_2O and Ag co-modified ZnO nanocomposites.Dunhua Hong Guangzhong Cao Junle Qu Yuanming Deng Jiaonin Tang 2018Journal of Materials Science & Technology2018,34,12:5
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