Carbon quantum dots decorated Bi2WO6 nanocomposite with enhanced photocatalytic oxidation activity for VOCs
Carbon quantum dots decorated Bi2WO6 nanocomposite with enhanced photocatalytic oxidation activity for VOCs
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碳量子点修饰的Bi2WO6纳米复合材料对VOCs具有增强的光催化氧化活性
DOI：
10.1016/j.apcatb.2016.04.009
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发表时间：
2016-09-15
影响因子：
22.1
通讯作者：
Zhao, Yixin
中科院分区：
文献类型：
--
作者：
Qian, Xufang;Yue, Dongting;Zhao, Yixin
我们将高稳定性的碳量子点（CQD）与Bi 2 WO 6结合，以充分利用太阳能光催化去除气态挥发性有机化合物（VOCs）。与纯Bi 2 WO 6相比，CQDs/Bi 2 WO 6复合光催化剂在CQDs的修饰下，吸收范围扩展到可见光区，光激发电荷分离得到改善。在紫外可见光和可见光照射下，CQDs/Bi 2 WO 6对丙酮和甲苯均表现出较高的光催化氧化活性。总之，CQDs由于其上级的扩展可见光吸收和抑制光激发电荷复合的能力，可能是一种有希望的可见光光催化剂的候选者。(C)© 2016 Elsevier B. V.版权所有。
We incorporated highly stable carbon quantum dots (CQDs) with Bi2WO6 to sufficiently photocatalytic removal of gaseous volatile organic compounds (VOCs) utilize solar energy. With the facile decoration of CQDs, the composite photocatalysts of CQDs/Bi2WO6 extend the absorption into visible light region and improve the photoexcited charge separation in comparison with pristine Bi2WO6. The CQDs/Bi2WO6 exhibited higher photocatalytic oxidation activities towards acetone and toluene under both UV-vis and visible light irradiation. In all, CQDs could be a promising candidate for visible light photocatalysts due to their superior ability to extend the visible absorption and suppress the photo-excited charge recombination. (C) 2016 Elsevier B.V. All rights reserved.