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Linxiang Tan,Wenjie Wu,Qiaoqiao Yin,Xiaoxia Ke,Ru Qiao,Guoxiu Tong,Lanlan Zhu 한국공업화학회 2017 Journal of Industrial and Engineering Chemistry Vol.52 No.-
The dimer-type heterostructured Ag/Zn0.995Ni0.005O microspheres were prepared via two-stepmicrowave-assisted process, which exhibited stronger visible-light-activated antibacterial performancethan visible-light only, ZnO/Vis, Zn0.995Ni0.005O/Vis, or AgNPs/Vis. It is attributed to not only theinteraction of released metal ions with functional groups of vital enzymes and proteins, but also thecollapsing force of reactive oxygen species to the cells. Photoelectrochemical measurements show thatthe photogenerated charges of Ag/Zn0.995Ni0.005O possess longer lifetime and higher separation resultingfrom the synergistic effect between Ni and Ag, which leads to its superior visible-light-drivenantibacterial performance. Gram-negative bacteria are more effectively restrained by Ag/Zn0.995Ni0.005Othan Gram-positive bacteria because of structural difference between their cell walls.