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Facile Synthesis of NaYF4:Yb,Tm@TiO2 Core‐Shell Structured Composite with Enhanced Photocatalytic Activity for Degradation of RhB Dye.
- Source :
- ChemistrySelect; 10/17/2019, Vol. 4 Issue 38, p11346-11353, 8p
- Publication Year :
- 2019
-
Abstract
- It is an effective method to explore the full spectrum responsive photocatalysts for enhancing their photocatalytic activity. Herein, we have combined the upconversion phosphor with semiconductor to design the full‐spectrum light responsive photocatalyst. A facile approach has been developed for synthesis of NaYF4:Yb,Tm@TiO2 core‐shell structured composite. The morphologies, crystal phases, chemical compositions, optical performance, and photoelectric properties were characterized. Based on SEM and TEM observation, the formation mechanism of NaYF4:Yb,Tm@TiO2 composite was discussed in detail. The results of photodegradation experiment showed that 22% of Rhodamine B dye in the solution was photodegradated by NaYF4:Yb,Tm@TiO2 composite under NIR light irradiation within 150 min, suggesting that the NaYF4:Yb,Tm@TiO2 core‐shell structured composite displayed photocatalytic activity under NIR light irradiation. Furthermore, the photocatalytic ability of NaYF4:Yb,Tm@TiO2 is obvious superior to that of TiO2 under the full‐spectrum light irradiation. [ABSTRACT FROM AUTHOR]
- Subjects :
- COMPOSITE structures
RHODAMINE B
PHOTON upconversion
DYES & dyeing
PHOTODEGRADATION
Subjects
Details
- Language :
- English
- ISSN :
- 23656549
- Volume :
- 4
- Issue :
- 38
- Database :
- Complementary Index
- Journal :
- ChemistrySelect
- Publication Type :
- Academic Journal
- Accession number :
- 139190015
- Full Text :
- https://doi.org/10.1002/slct.201902646