Abstract
A simple, mild, and time-saving method is employed to synthesize Ag-SiO2 composite nanospheres with Ag nanoparticles uniformly distributed on the surface of SiO2 nanoparticles. The chemical elements and the morphology of Ag-SiO2 composite nanospheres were analyzed with transmission electron microscopy (TEM), X-ray power diffraction (XRD), and X-ray photoelectron spectroscopy (XPS). On the surface of Ag-SiO2 composite nanospheres, silane coupling agent (KH-550) is introduced as an intermediary to connect the surfaces of SiO2 nanospheres and Ag nanoparticles, which is also helpful for avoiding the aggregation of Ag nanoparticles. It is found that Ag-SiO2 composite nanospheres have very good catalytic properties for the reduction of organic dyes, which may have potential application in wastewater treatment.
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Han, Q., Li, G., Wang, D. et al. Synthesis of Ag-SiO2 composite nanospheres and their catalytic activity. Sci. China Chem. 57, 881–887 (2014). https://doi.org/10.1007/s11426-014-5068-0
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DOI: https://doi.org/10.1007/s11426-014-5068-0