期刊
JOURNAL OF PHYSICAL CHEMISTRY C
卷 111, 期 36, 页码 13393-13397出版社
AMER CHEMICAL SOC
DOI: 10.1021/jp072646k
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Silver nanoparticles of particle size around 15 nm were synthesized by following a simple and green methodology of photoreduction of silver nitrate (AgNO3) using bare titania and polyvinyl alcohol (PVA)-capped colloidal titanium dioxide nanoparticles/nanotubes under UV-vis light (lambda = 365 nm). The synthesized pure TiO2 nanoparticles/tubes, Ag-TiO2 nanocomposites and PVA-capped colloidal Ag-TiO2 nanocomposites are characterized for their structure and morphology by X-ray diffraction (XRD) and transmission electron microscopy (TEM) and for their electronic structure by X-ray photoelectron spectroscopy (XPS). The antibacterial efficiency of all nanocomposites were investigated on Escherichia coli using standard procedures. The synthesized metal-metal oxide nanocomposites are shown to be very efficient toward destroying Gram negative bacteria Escherichia coli.
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