MoS₂ Quantum dots-interspersed Bi₂WO₆ heterostructure is fabricated for photocatalytic applications for the first time. It exhibits enhanced visible light-driven photocatalytic detoxification and disinfection in wastewater compared to bare Bi₂WO₆ and MoS₂. MoS₂ quantum dots as a co-catalyst applied in photocatalysis oxidation possesses multiple merits: (1) noble-metal-free; (2) high mobility of photogenerated charge carriers; (3) high adsorption capacity and (4) improved capture capacity of visible light photons. Electron-hole separation rate which is critical for an efficient photocatalysis is greatly improved via the built-in electric field of p-n heterostructure and the quantum dots interspersed on the surface. This work shed a light on loading MoS₂ quantum dots as a co-catalyst on a support aiming to significantly improve its photocatalytic performance in organic pollutants degradation and bacteria inactivation.

中文翻译：

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MoS2量子点散布的Bi2WO6异质结构，用于可见光诱导的排毒和消毒

首次制造了MoS ₂量子点散布的Bi ₂ WO ₆异质结构，用于光催化应用。与裸Bi ₂ WO ₆和MoS ₂相比，它在废水中表现出增强的可见光驱动的光催化解毒和消毒作用。硫化钼₂量子点作为光催化氧化中的助催化剂具有多种优点：（1）不含贵金属；（2）光生载流子的高迁移率；（3）高吸附能力和（4）改善可见光光子的捕获能力。通过pn异质结构的内置电场和量子点散布在表面上，极大地提高了对有效光催化至关重要的电子-空穴分离率。这项工作揭示了将MoS ₂量子点作为助催化剂负载在载体上的目的，该载体旨在显着提高其在有机污染物降解和细菌灭活中的光催化性能。