Combustion Synthesis and Enhancement of Bi OC l by Doping Eu 3+ for Photodegradation of Organic Dye
| Autor: | Xin Shao, Dongdong Lv, Meichao Gao, Xipeng Pu, Dafeng Zhang, Hong Li |
|---|---|
| Rok vydání: | 2015 |
| Předmět: |
Materials science
Diffuse reflectance infrared fourier transform Scanning electron microscope Doping 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology Photochemistry 01 natural sciences 0104 chemical sciences chemistry.chemical_compound symbols.namesake chemistry X-ray photoelectron spectroscopy Materials Chemistry Ceramics and Composites Photocatalysis Rhodamine B symbols 0210 nano-technology Photodegradation Raman spectroscopy |
| Zdroj: | Journal of the American Ceramic Society. 99:881-887 |
| ISSN: | 1551-2916 0002-7820 |
| DOI: | 10.1111/jace.14012 |
| Popis: | Eu3+-doped BiOCl with different doping concentrations was synthesized by a simple combustion method. The as-synthesized photocatalysts were characterized by X-ray diffraction, scanning electron microscope, transmission electron microscope, Raman spectroscopy, X-ray photoelectron spectroscopy, electron paramagnetic resonance spectroscopy, and UV–vis diffuse reflectance spectroscopy. The experimental results show that Eu3+ was successfully doped into the lattice of BiOCl. The as-synthesized Eu3+-doped BiOCl photocatalysts show a more intense continuous absorption in UV light region, accompanied with decreased energy band gap. Moreover, the Eu3+ doping leads to the formation of oxygen vacancies, small crystallite size, and high specific surface areas. Compared with pure BiOCl, the Eu3+-doped BiOCl photocatalysts exhibits much higher photocatalytic activity for Rhodamine B (RhB) under UV light irradiation. As-obtained Eu3+-doped BiOCl can be easily reused with excellent stability. In addition, the mechanism of the improved photocatalytic properties of Eu3+-doped BiOCl was discussed in detail. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Plný text