Abstract
Abstract This study reports an enhanced activity photocatalyst of Fe 3+ ion-decorated SnO 2 nanoparticles synthesized by a facile route. The chemical state of Fe 3+ -decorated SnO 2 nanoparticles has been characterized by x-ray photoelectron spectrum (XPS). The Fe 3+ is reduced to Fe 2+ by the photoelectrons from SnO 2 via an interfacial charger transfer process. The Fe 2+ are transformed to Fe 3+ ion through a four electron reduction, which realizing the recycle of Fe 3+ ions, and preventing recombining of photoelectrons with photoholes, resulting in its enhanced ·OH radical generation performance. The Fe 3+ -decorated SnO 2 presents futuramic photocatalysis application in decomposing recalcitrant organic matter.
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