Enhanced photocatalytic activity of ternary g-C3N4/NaTaO3/biomass carbon composite photocatalysts under visible-light radiation
| Autor: | Yubin Dong, Jinlong Liao, Yaofeng Zhu, Yaqin Fu, Shengze Li |
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| Rok vydání: | 2020 |
| Předmět: |
010302 applied physics
Materials science Composite number Graphitic carbon nitride Sintering Condensed Matter Physics 01 natural sciences Atomic and Molecular Physics and Optics Electronic Optical and Magnetic Materials Catalysis chemistry.chemical_compound chemistry Chemical engineering 0103 physical sciences Rhodamine B Photocatalysis Electrical and Electronic Engineering Ternary operation Melamine |
| Zdroj: | Journal of Materials Science: Materials in Electronics. 31:19613-19622 |
| ISSN: | 1573-482X 0957-4522 |
| DOI: | 10.1007/s10854-020-04488-z |
| Popis: | Highly efficient visible-light-responsive ternary graphitic carbon nitride (g-C3N4)/NaTaO3/biomass carbon (BM-C) photocatalysts with different g-C3N4 amounts were prepared via a solvothermal method combined with a high-temperature sintering method. Herein, the crystal structure and morphology of g-C3N4/NaTaO3/BM-C are investigated in detail. The light-response characteristics of g-C3N4/NaTaO3/BM-C composites are effectively extended into the visible-light region. Compared with NaTaO3/BM-C and g-C3N4/NaTaO3, the g-C3N4/NaTaO3/BM-C composite showed high visible-light catalytic performance when the mass ratio of melamine (the g-C3N4 precursor) to binary NaTaO3/BM-C is 4:1, and the degradation extent of 95.85% for Rhodamine B can be reached in 60 min under visible-light irradiation. In addition, the photocatalytic mechanism showed that the enhanced photocatalytic activity of the composite may be attributed to the introduction of g-C3N4, which expanded the visible-light response range and the formation and effect of a good synergistic effect of BM-C and various components. This work provides useful insights for promoting the practical process of sodium tantalate photocatalytic materials. |
| Databáze: | OpenAIRE |
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