Details

Autor(en) / Beteiligte

• Zhang, Fu
• Zhang, Chuan-Ling
• Wang, Wan-Ni
• Cong, Huai-Ping
• Qian, Hai-Sheng

Titel

Titanium Dioxide/Upconversion Nanoparticles/Cadmium Sulfide Nanofibers Enable Enhanced Full-Spectrum Absorption for Superior Solar Light Driven Photocatalysis

Ist Teil von

• ChemSusChem, 2016-06, Vol.9 (12), p.1449-1454

Ort / Verlag

Germany: Blackwell Publishing Ltd

Erscheinungsjahr

2016

Quelle

Wiley Online Library Journals Frontfile Complete

Beschreibungen/Notizen

• In this work, we demonstrate an electrospinning technique to fabricate TiO2/upconversion nanoparticles (UCNPs)/CdS nanofibers on large scale. In addition, the as‐prepared TiO2 nanofibers are incorporated with a high population of UCNPs and CdS nanospheres; this results in Förster resonance energy‐transfer configurations of the UCNPs, TiO2, and CdS nanospheres that are in close proximity. Hence, strong fluorescent emissions for the Tm3+ ions including the 1G4→3H6 transition are efficiently transferred to TiO2 and the CdS nanoparticles through an energy‐transfer process. The as‐prepared TiO2/UCNPs/CdS nanofibers exhibit full‐spectrum solar‐energy absorption and enable the efficient degradation of organic dyes by fluorescence resonance energy transfer between the UCNPs and TiO2 (or CdS). The UCNPs/TiO2/CdS nanofibers may also have enhanced energy‐transfer efficiency for wide applications in solar cells, bioimaging, photodynamics, and chemotherapy. Moving on up: TiO2 nanofibers are incorporated within high populations of upconversion nanoparticles (UCNPs) and CdS nanospheres; this results in Förster resonance energy‐transfer configurations of the components that are in close proximity. The as‐prepared TiO2/UCNPs/CdS nanofibers exhibit unique optical properties with wide absorption in the λ=280–800 nm range, which results in enhanced photocatalytic abilities.