KBiO3 as an Effective Visible-Light-Driven Photocatalyst: Stability 2 Improvement by In Situ Constructing KBiO3/BiOX (X = Cl, Br, I) 3 Heterostructure
KBiO3 as an Effective Visible-Light-Driven Photocatalyst: Stability 2 Improvement by In Situ Constructing KBiO3/BiOX (X = Cl, Br, I) 3 Heterostructure
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KBiO3 作为有效的可见光驱动光催化剂：通过原位构建 KBiO3/BiOX (X = Cl、Br、I) 异质结构提高稳定性
DOI：
10.1021/acs.iecr.8b05658
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发表时间：
2019
影响因子：
4.2
通讯作者：
Wei Jiang
中科院分区：
文献类型：
--
作者：
Hao Zhang;Hanxiao Zheng;Ying Wang;Runhua Yan;Dingyuan Lu;Wei Jiang
花瓣状铋盐半导体作为可见光驱动的光催化剂具有很好的应用前景，但由于其氧化性强，使用寿命短，限制了其应用。在这项研究中，通过在KBiO 3表面生长BiOx来原位构建p-n异质结，作为提高性能和稳定性的策略。光催化降解结晶紫和苯酚的评价表明，KBiO 3/BiOX（X = Cl，Br，I）异质结构表现出显着改善的光催化性能和稳定性相比，KBiO 3。其中KBiO_3/（5.85%）BiOI对结晶紫的降解率最高，在20 min内达到98%;对苯酚的降解率最高，在1.5 h内达到98%。重复使用后未检测到显著性能衰减。KBiO 3/BiOX异质结构的发展提高了KBiO 3作为一种高效可见光催化剂的适用性。
Petal bismuth salt semiconductors are promising as visible-light-driven photocatalysts, but their short service times due to strong oxidation limit their application. In this research, the in situ construction of a p–n heterojunction, by growing BiOX on a KBiO3surface, is used as a strategy to improve the performance and stability. Evaluation of the photocatalytic degradation of crystal violet and phenol shows that the KBiO3/BiOX (X = Cl, Br, I) heterostructures exhibit significant improvement in photocatalytic performance and stability compared to KBiO3. The best one, KBiO3/(5.85%) BiOI, shows 98% degradation of crystal violet within 20 min, and of phenol within 1.5 h. No significant performance decay can be detected after repeated use. The development of KBiO3/BiOX heterostructure improves the applicability of KBiO3as an efficient visible-light-driven photocatalyst.