1. Enhanced photocatalytic activity of ternary g-C3N4/NaTaO3/biomass carbon composite photocatalysts under visible-light radiation.
- Author
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Li, Shengze, Liao, Jinlong, Dong, Yubin, Fu, Yaqin, and Zhu, Yaofeng
- Subjects
VISIBLE spectra ,CARBON composites ,PHOTOCATALYSTS ,RADIATION ,CRYSTAL morphology - Abstract
Highly efficient visible-light-responsive ternary graphitic carbon nitride (g-C
3 N4 )/NaTaO3 /biomass carbon (BM-C) photocatalysts with different g-C3 N4 amounts were prepared via a solvothermal method combined with a high-temperature sintering method. Herein, the crystal structure and morphology of g-C3 N4 /NaTaO3 /BM-C are investigated in detail. The light-response characteristics of g-C3 N4 /NaTaO3 /BM-C composites are effectively extended into the visible-light region. Compared with NaTaO3 /BM-C and g-C3 N4 /NaTaO3 , the g-C3 N4 /NaTaO3 /BM-C composite showed high visible-light catalytic performance when the mass ratio of melamine (the g-C3 N4 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-C3 N4 , 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. [ABSTRACT FROM AUTHOR]- Published
- 2020
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