Authors: Tingting He Deyong Wu
Publish Date: 2017/01/30
Volume: 28, Issue: 10, Pages: 7320-7325
Abstract
Novel visiblelightdriven Ag/AgCl/Bi2Zr2O7 plasmonic photocatalysts were successfully synthesized through a twostep process Bi2Zr2O7 nanosheets were firstly prepared via a precipitationcalcination method and Ag/AgCl nanoparticles were deposited on the surface of Bi2Zr2O7 nanosheets by an ultrasonicassisted precipitationphotoreduction technique The composition phase structures morphologies and optical properties of the Ag/AgCl/Bi2Zr2O7 catalysts were characterized by scanning electron microscopy SEM transmission electron microscopy TEM Xray diffraction XRD UV–vis diffuse reflectance spectroscopy DRS and Xray photoelectron spectroscopy XPS The results showed that the Ag ions were finally formed on the surface of AgCl by in situ photoreaction The visiblelight photocatalytic activity of the asprepared samples was investigated by the degradation of methyl orange aqueous solution Compared to Bi2Zr2O7 the Ag/AgCl/Bi2Zr2O7 photocatalysts showed superior photocatalytic activities which sould be attributed to the high specific surface area of the catalysts the surface plasmon resonance effects of Ag and the formation of a heterostructure between Ag AgCl and Bi2Zr2O7 It would provide a promising candidate material for environment remediation
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