期刊
COLLOID AND POLYMER SCIENCE
卷 295, 期 5, 页码 933-937出版社
SPRINGER
DOI: 10.1007/s00396-017-4085-x
关键词
Nanoparticles; SrTiO3; Surfaces; Rhodamine B; Photocatalysis
资金
- UGC start-up grant, New Delhi, India
Highly crystalline Cr-doped SrTiO3 nanoparticles were effectively synthesized with strontium acetate, titanium isopropoxide, and chromium nitrate as precursors via citric acid-assisted hydrothermal process followed by calcinations. The synthesized Cr-SrTiO3 NPs possess monodispersity with average particle size diameter 50 +/- 5 nm, leading to agglomeration of NPs which might create grain boundaries and oxygen vacancies in the crystal. Doping of Cr into SrTiO3 lattice tailored the electronic structure which extended its absorption into the visible region. The photocatalytic activity was successfully explored to demonstrate the facile degradation of rhodamine-B (RhB) dye under visible light illumination. The result shows the excellent degradation (similar to 77%) of RhB dye in short time span of 120 min and degradation followed the first-order reaction kinetics with rate constant k = 0.0103 min(-1) (.).
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