罗丹明B
光催化
异质结
材料科学
降水
化学工程
纳米技术
催化作用
光电子学
化学
有机化学
物理
工程类
气象学
作者
Huan Li,Jianxin Zhong,Yuyun Zhang,Jianzhang Li
标识
DOI:10.1016/j.inoche.2022.109254
摘要
Construction of heterostructures is a valid channel to tune the activity of the photocatalyst. In this work, Ag/AgBr/BiOBr heterostructures were in-situ built by a precipitation method. The constructed heterojunctions were carefully characterized by some analytic methods. The characterization results show that construction of heterojunctions can promote the separation of photoactivated carriers. Rhodamine B (RhB) was used to evaluate photocatalytic activity under simulated sunlight. When the molar ratio of AgBr/BiOBr is 2%, the heterostructures prepared possess the highest photocatalytic activities. Photocatalytic activity of the 2% sample is 2-fold of that of BiOBr. Moreover, the sample has outstanding stability. In view of the experimental results, a mechanism for separation and transfer of photoexcited carriers was elaborated.
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