Construction of a novel ZnCo2O4/Bi2O3 heterojunction photocatalyst with enhanced visible light photocatalytic activity
Construction of a novel ZnCo2O4/Bi2O3 heterojunction photocatalyst with enhanced visible light photocatalytic activity
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DOI：
10.1016/j.cclet.2018.08.020
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发表时间：
2019-03-01
影响因子：
9.1
通讯作者：
Tang, Yiwei
中科院分区：
文献类型：
--
作者：
Chen, Jun;Zhan, Jing;Tang, Yiwei
制备了一种新型的ZnCo 2 O 4/Bi 2 O3异质结光催化剂，并通过HRTEM证实了异质结的形成。以孔雀石绿色（MG）为光催化剂，考察了样品的光催化活性。结果表明，所制备的13%ZnCo2O4/Bi 2 O3异质结光催化剂比纯Bi 2 O3具有更高的活性。该催化剂对MG的降解率高达94%。ZnCo 2 O 4/Bi 2 O3异质结界面光生电位差的作用使光生电子-空穴对具有较宽的光吸收和较低的复合速率，从而提高了其光催化活性。(C)2018中国化学会、中国医学科学院药物研究所。Elsevier B. V.出版，保留所有权利。
A novel ZnCo2O4/Bi2O3 heterojunction photocatalyst was prepared, and the formation of the heterojunction was confirmed via HRTEM. Photocatalytic activity of as-prepared samples was evaluated through photodegradation of malachite green (MG). The degradation results show that the as-prepared 13% ZnCo2O4/Bi2O3 heterojunction photocatalyst exhibits higher activity than pure Bi2O3. The MG degradation rate for the as-prepared catalyst is as high as 94%. The enhanced photocatalytic activity is mainly attributed to the broad photoabsorption and low recombination rate of photogenerated electronhole pairs, which is driven by the photogenerated potential difference formed at the ZnCo2O4/Bi2O3 heterojunction interface. (C) 2018 Chinese Chemical Society and Institute of Materia Medica, Chinese Academy of Medical Sciences. Published by Elsevier B.V. All rights reserved.