MoS2 quantum dots-interspersed Bi2WO6 heterostructures for visible light-induced detoxification and disinfection
MoS2 quantum dots-interspersed Bi2WO6 heterostructures for visible light-induced detoxification and disinfection
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DOI：
10.1016/j.apcatb.2017.02.083
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发表时间：
2017-08-05
影响因子：
22.1
通讯作者：
Zhang, Zisheng
中科院分区：
文献类型：
--
作者：
Meng, Xiangchao;Li, Zizhen;Zhang, Zisheng
首次制备了用于光催化应用的MoS 2量子点散布的Bi 2 WO 6异质结构。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。MOS_2量子点作为光催化氧化的助催化剂具有以下优点：（1）不含贵金属;（2）光生载流子的高迁移率;（3）高吸附容量;（4）提高可见光光子的捕获能力。通过p-n异质结构的内建电场和散布在表面的量子点，大大提高了电子-空穴的分离率，这是有效的双折射的关键。该工作揭示了将MoS 2量子点作为助催化剂负载在载体上，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。(C)2017爱思唯尔B. V.保留所有权利。
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 photo catalysis 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. (C) 2017 Elsevier B.V. All rights reserved.