Ag3PO4 quantum dots loaded on the surface of leaf-like InVO4/BiVO4 heterojunction with enhanced photocatalytic activity
Ag3PO4 quantum dots loaded on the surface of leaf-like InVO4/BiVO4 heterojunction with enhanced photocatalytic activity
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叶状InVO4/BiVO4异质结表面负载Ag3PO4量子点，光催化活性增强
DOI：
10.1016/j.catcom.2015.08.010
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发表时间：
2015-11-05
影响因子：
3.7
通讯作者：
Wang, Qingwei
中科院分区：
文献类型：
--
作者：
Lin, Xue;Guo, Xiaoyu;Wang, Qingwei
采用水热法制备了2 μ m ~ 5 μ m的InVO 4/BiVO 4叶状纳米结构。然后通过简单的沉积-沉淀技术将Ag 3 PO 4量子点（QD）沉积到叶状InVO 4/BiVO 4晶体表面。结果表明，Ag 3 PO 4/InVO 4/BiVO 4纳米复合材料在可见光照射下对罗丹明B（Rh B）的降解率明显高于BiVO 4、InVO 4、Ag 3 PO 4、AR（3）PO（4）/InVO 4、Ag 3 PO 4/BiVO 4和InVO 4/BiVO 4的总和。所观察到的光催化性能的改善与在可见光区域中的扩展吸收相关联，所述扩展吸收是由Ag 3 PO 4 QD负载、高比表面积以及Ag 3 PO 4/InVO 4/BiVO 4界面处的光生载流子的有效分离而产生的。(C)2015 Elsevier B. V.版权所有。
Leaf-like InVO4/BiVO4 nanoarchitectures with scale of 2 mu m-5 pm were prepared by a facile hydrothermal method. Ag3PO4 quantum dots (QDs) were then deposited onto the surface of leaf-like InVO4/BiVO4 crystals via a simple deposition-precipitation technique. The photocatalytic tests displayed that the Ag3PO4/InVO4/BiVO4 nanocomposite possesses a much higher rate for degradation of rhodamine B (Rh B) than the sum of BiVO4, InVO4, Ag3PO4, AR(3)PO(4)/InVO4, Ag3PO4/BiVO4 or InVO4/BiVO4 under visible light irradiation. The observed improvement in photocatalytic performance is associated with the extended absorption in the visible light region resulting from the Ag3PO4 QD loading, the high specific surface area, and the effective separation of photogenerated carriers at the Ag3PO4/InVO4/BiVO4 interfaces. (C) 2015 Elsevier B.V. All rights reserved.