Abstract

Constructing heterojunction is an effective strategy to enhance photocatalytic performance of photocatalysts. Herein, we fabricated ZnTiO₃/Bi₄NbO₈Cl heterojunction with improved performance via a typical mechanical mixing method. The rhodamine (RhB) degradation rate over heterojunction is higher than that of individual ZnTiO₃ or Bi₄NbO₈Cl under Xenon-arc lamp irradiation. Combining ZnTiO₃ with Bi₄NbO₈Cl can inhibit the recombination of photo-excited carriers. The improved quantum efficiency was demonstrated by transient-photocurrent responses (PC), electrochemical impedance spectroscopy (EIS), photoluminescence (PL) spectra, and time-resolved PL (TRPL) spectra. This research may be valuable for photocatalysts in the industrial application.

中文翻译：

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光催化性能增强的ZnTiO 3 / Bi 4 NbO 8 Cl异质结的构建

摘要

构建异质结是提高光催化剂光催化性能的有效策略。在这里，我们通过典型的机械混合方法制备了具有改进性能的ZnTiO ₃ / Bi ₄ NbO ₈ Cl异质结。在氙弧灯照射下，异质结上的罗丹明（RhB）降解速率高于单个ZnTiO ₃或Bi ₄ NbO ₈ Cl。ZnTiO ₃与Bi ₄ NbO _8的结合Cl可以抑制光激发载流子的重组。瞬态光电流响应（PC），电化学阻抗谱（EIS），光致发光（PL）光谱和时间分辨PL（TRPL）光谱证明了量子效率的提高。该研究对于工业应用中的光催化剂可能是有价值的。