A Bi7.38Cr0.62O12+x crystal as a novel visible-light-active photocatalyst up to ∼650 nm
| Autor: | Zhao Xin, Wen-Hua Liao, T. Wang |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Range (particle radiation)
Materials science General Chemical Engineering Methyl blue Wide-bandgap semiconductor 02 engineering and technology General Chemistry 010402 general chemistry 021001 nanoscience & nanotechnology Photochemistry 01 natural sciences Decomposition 0104 chemical sciences Crystal chemistry.chemical_compound chemistry Photocatalysis 0210 nano-technology Methylene blue Visible spectrum |
| Zdroj: | RSC Advances. 7:28797-28801 |
| ISSN: | 2046-2069 |
| DOI: | 10.1039/c7ra03058d |
| Popis: | The relatively wide band gap (>2.0 eV) and limited light absorption ranges (only up to 600 nm) of photocatalysts severely restrict the exploitation of solar energy. Herein, we developed a Bi7.38Cr0.62O12+x crystal photocatalyst with a narrow band gap of 1.98 eV and a broad light absorption range of ∼650 nm. Unlike other broad light absorption range photocatalysts (up to ∼650 nm) such as red phosphorus, Fe2O3, and CdSe, which are either unstable or show low photocatalytic performances, the as-synthesized Bi7.38Cr0.62O12+x crystal photocatalyst exhibits a steady photocatalytic activity for the decomposition of methylene blue, methyl blue, and phenol, and production of O2. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|