首页|TiO2/Zn0.5Cd0.5S heterojunction for efficient photocatalytic degradation of methylene blue and its photocatalytic mechanism
TiO2/Zn0.5Cd0.5S heterojunction for efficient photocatalytic degradation of methylene blue and its photocatalytic mechanism
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NSTL
Elsevier
TiO2/Zn0.5Cd0.5S composites were prepared by co-precipitation-hydrothermal method.The two substances come together to form a heterojunction structure. After recombination, the band gap decreases, the response range to visible light becomes larger, the recombination efficiency of electron-hole pair becomes lower, and the electron transfer rate becomes faster. In the photocatalytic process, 90%-TiO2/Zn0.5Cd0.5S photocatalyst has the best effect, the decolorization rate reaches 94.2% at 240 min, and the reaction rate constant is 0.0142 min-1, respectively 2.1 times for TiO2/Zn0.5Cd0.5S and 5.2 times that of TiO2, and the active group is O2-. during the degradation process.
NSTL
Elsevier
