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A redox-active support for the synthesis of Au@SnO(2)core-shell nanostructure and SnO(2)quantum dots with efficient photoactivities
Pan, XY; Chen, WJ; Cai, HZ; Li, H; Sun, XJ; Weng, B; Yi, ZG
2020-09-16
Source PublicationRSC ADVANCES
Issue56Pages:33955
SubtypeArticle
AbstractA defect pyrochlore-type Sn1.06Nb2O5.59F0.97(SnNbOF) nano-octahedron is used as a redox-active support for fabricating Au@SnO(2)core-shell and SnO(2)quantum dots at room temperature without the use of organic species or foreign reducing reagents. Gold (Au) and SnO(2)components were obtained through anin situredox reaction between the HAuCl(4)and reductive Sn(2+)ions incorporated in SnNbOF. The composition and morphology of the resulting nanocomposites (denoted as Au-SnNbOF) could be controlled by adjusting the Au/SnNbOF ratio. The Au-SnNbOF nanocomposites exhibited efficient photoactivities for methyl orange (MO) degradation under the visible light irradiation (lambda> 420 nm), during which the MO was almost completely degraded within 8 min. Among all the samples, the 5wt% Au-SnNbOF nanocomposite had the highest rate constant (0.43 min(-1)), which was 40 times higher than that of the blank SnNbOF.
DOI10.1039/d0ra06175a
WOS KeywordCORE-SHELL NANOPARTICLES ; PHOTOCATALYTIC DEGRADATION ; METHYL-ORANGE ; CATALYTIC-REDUCTION ; OXIDATION CATALYSIS ; AU ; GOLD ; SILICA ; OXIDE ; TIO2
Language英语
WOS Research AreaChemistry
PublisherROYAL SOC CHEMISTRY
Citation statistics
Document Type期刊论文
Identifierhttp://ir.sic.ac.cn/handle/331005/27747
Collection中国科学院上海硅酸盐研究所
Recommended Citation
GB/T 7714
Pan, XY,Chen, WJ,Cai, HZ,et al. A redox-active support for the synthesis of Au@SnO(2)core-shell nanostructure and SnO(2)quantum dots with efficient photoactivities[J]. RSC ADVANCES,2020(56):33955.
APA Pan, XY.,Chen, WJ.,Cai, HZ.,Li, H.,Sun, XJ.,...&Yi, ZG.(2020).A redox-active support for the synthesis of Au@SnO(2)core-shell nanostructure and SnO(2)quantum dots with efficient photoactivities.RSC ADVANCES(56),33955.
MLA Pan, XY,et al."A redox-active support for the synthesis of Au@SnO(2)core-shell nanostructure and SnO(2)quantum dots with efficient photoactivities".RSC ADVANCES .56(2020):33955.
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