Hot carriers in action: multimodal photocatalysis on Au@SnO₂ core–shell nanoparticles

Abstract

Au@SnO2 core–shell nanoparticles exhibit multimodal photocatalytic behaviors dictated by hot carriers derived from plasmonic intraband and d → sp interband transitions, respectively.

Facile synthesis of SnO2shell followed by microwave treatment for high environmental stability of Ag nanoparticles

“…In acidic and neutral pH, the aggregation rate was higher than that in alkaline pH, which stabilizes the nanoparticles to some extent due to the presence of hydroxyl ions. 56 The samples fully covered with SnO 2 with and without microwave irradiation treatment ( Fig. 7) revealed unchanged optical properties and the sample colour indicated the high stability of the samples in the aquatic environment at different pH values (Fig.…”

“…The direct synthesis of tin oxide on the silver surface and the tuning of the shell thickness can also create a system for carrier recombination and the design of efficient optoelectronic devices. 56,57 For other potential purposes that need pH values in the non-biologically relevant range, the nanoparticles were treated at highly acidic (1.4) and alkaline (13.2) pH values. Fig.…”

Fabrication of Zr-doped SnO2 nanoparticles with synergistic influence for improved visible-light photocatalytic action and antibacterial performance

“…It is substance underscoring that SnO 2 NMs have greatly advanced electron mobility than TiO 2 , while expressly constructive to the aforementioned applications (Arnold et al 2003;Hendry et al 2006). Nonetheless, the low quantum yield of SnO 2 quiet occurs and confines its concrete application, which is mostly owing to the firm recombination rate of photoexcited charges and the squat solar energy transformation efficacy (Fu et al 2019). Thus it is exterme concern to increase the seperation of photo-excited charges (electron/ hole) and auxiliary improve the photocatalytic properties of as-obtained SnO 2 nanomaterials.…”

Janus Oligomers Demonstrating Full‐Spectrum Visible Light Reflection and Tunable Photoluminescence towards Dual‐Mode Dynamic Anti‐Counterfeiting

“…[ 6–11 ] They can be potentially applied in optoelectronic devices, photocatalysis, biomedical therapy, energy conversion, or anticounterfeiting. [ 12–19 ] The methodologies for combining different optical properties in a nanostructure or in a composite mainly include bulk physical mixing, host‐guest assembly, core‐shell synthetic chemistry, and epitaxial growth. The physical mixing is usually conducted by homogeneously mixing different optical materials to obtain optical composites.…”