Back to Search
Start Over
One-step hydrothermal synthesis and characterization of Cu-doped TiO2 nanoparticles/nanobucks/nanorods with enhanced photocatalytic performance under simulated solar light.
- Source :
- Journal of Materials Science: Materials in Electronics; Jul2019, Vol. 30 Issue 14, p13826-13834, 9p
- Publication Year :
- 2019
-
Abstract
- Cu–TiO<subscript>2</subscript> and pure TiO<subscript>2</subscript> were prepared by a facile one-step hydrothermal method and the obtained photocatalysts were tested by XRD, Raman, BET, XPS, DRS, PL, SEM and TEM, respectively. The results show that both pure and Cu–TiO<subscript>2</subscript> consist of most rutile and a small amount of anatase, and present the morphology with nanoparticles, nanobucks and nanorods coexistence. The specific surface area and the separation rate of photogenerated electrons and holes increase after Cu doping. The photocatalytic experiment results illustrate that Cu–TiO<subscript>2</subscript> exhibit better photocatalytic activity than pure TiO<subscript>2</subscript> under simulated solar light. The enhanced photocatalytic performance is derived from the increased specific surface area providing more reaction sites and the conversion between Cu<superscript>2+</superscript> and Cu<superscript>+</superscript> increasing the separation rate of photogenerated pairs. 3%Cu–TiO<subscript>2</subscript> shows the best photocatalytic activity owing to its largest specific surface area and lowest recombination rate. The degradation rate of RhB reaches 99.4% after 60 min, and the reaction rate constant is 0.076 min<superscript>−1</superscript>. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 09574522
- Volume :
- 30
- Issue :
- 14
- Database :
- Complementary Index
- Journal :
- Journal of Materials Science: Materials in Electronics
- Publication Type :
- Academic Journal
- Accession number :
- 137589286
- Full Text :
- https://doi.org/10.1007/s10854-019-01766-3