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In-situ preparation of Ti3C2/Ti3+-TiO2 composites with mosaic structures for the adsorption and Photo-degradation of flowing acetaldehyde under visible light
Wang, X; Yang, YN; Lu, GH; Shi, GS; Wang, Y; Wang, RR; Xie, XF; Sun, J
2020-11-30
Source PublicationAPPLIED SURFACE SCIENCE
ISSN0169-4332
SubtypeArticle
AbstractPhotocatalytic degradation has been proven to be an effective way in the elimination of gaseous acetaldehyde. This work provided a facile in-situ method for the fabrication of Ti3C2/Ti3+-TiO2 photocatalysts by oxidizing Ti3C2 with H2O(2). A novel mosaic structure formed by small Ti3+-TiO2 nanoparticles embedded in Ti3C2 layers was obtained by adjusting the synthesis parameters. Compared with pure Ti3C2, a 60-fold increase in the BET-SSA was observed in Ti3C2/Ti3+-TiO2 composites, which benefits the capture of the flowing acetaldehyde gas. Self-doped TiO2 nanoparticles induced by the incomplete oxidation process enabled the photodegradation of acetaldehyde under visible light. Besides, the closely contact between the two components helps the transfer of photon-induced charge carriers from TiO2 to Ti3C2, which suppressed the recombination of electron-hole pairs and promoted the generation of active radicals. Compared with commercial P25, which has almost no catalytic activity under the irradiation of visible light, a degradation efficiency of around 27% was achieved by applying Ti3C2/Ti3+-TiO2 as the photocatalyst. This work provided a new facile method for the in-situ fabrication of heterogeneous structures for the photocatalytic elimination of acetaldehyde under visible light.
DOI10.1016/j.apsusc.2020.147101
WOS KeywordENVIRONMENTAL APPLICATIONS ; GASEOUS ACETALDEHYDE ; 2-DIMENSIONAL TI3C2 ; GAS-PHASE ; TIO2 ; MXENE ; PHOTOCATALYSIS ; EXFOLIATION ; DEGRADATION ; OXIDATION
Language英语
WOS Research AreaChemistry ; Materials Science ; Physics
PublisherELSEVIER
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Document Type期刊论文
Identifierhttp://ir.sic.ac.cn/handle/331005/27609
Collection中国科学院上海硅酸盐研究所
Recommended Citation
GB/T 7714
Wang, X,Yang, YN,Lu, GH,et al. In-situ preparation of Ti3C2/Ti3+-TiO2 composites with mosaic structures for the adsorption and Photo-degradation of flowing acetaldehyde under visible light[J]. APPLIED SURFACE SCIENCE,2020.
APA Wang, X.,Yang, YN.,Lu, GH.,Shi, GS.,Wang, Y.,...&Sun, J.(2020).In-situ preparation of Ti3C2/Ti3+-TiO2 composites with mosaic structures for the adsorption and Photo-degradation of flowing acetaldehyde under visible light.APPLIED SURFACE SCIENCE.
MLA Wang, X,et al."In-situ preparation of Ti3C2/Ti3+-TiO2 composites with mosaic structures for the adsorption and Photo-degradation of flowing acetaldehyde under visible light".APPLIED SURFACE SCIENCE (2020).
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