Ingenious preparation of "layered-closed" TiO2-BiVO4-CdS film and its highly stable and sensitive photoelectrochemical cathodic protection performance
Ingenious preparation of "layered-closed" TiO2-BiVO4-CdS film and its highly stable and sensitive photoelectrochemical cathodic protection performance
复制标题
巧妙制备“层状封闭”TiO2-BiVO4-CdS薄膜及其高稳定灵敏的光电化学阴极保护性能
DOI：
10.1016/j.cej.2021.132511
复制
发表时间：
2021-09-23
影响因子：
15.1
通讯作者：
Li, Weihua
中科院分区：
文献类型：
--
作者：
Li, Wanfeng;Wei, Licheng;Li, Weihua
构建兼具保护性能和高稳定性的光阳极是光电化学阴极保护技术的当务之急。在这项工作中，我们开发了一个“层状封闭”异质结（m-TiO 2-f-BiVO 4-c-CdS）与一个良好匹配的能带。封闭的结构有利于避免活性物质的损失，能带匹配良好的层状结构促进电子和空穴的有序分离，从而在不含空穴清除剂的3.5wt%NaCl中实现高度稳定和灵敏的光电化学保护性能（100次循环和3.3小时后的性能保持率分别高达86%和80%）。
Constructing a photo-anode owning both protection performance and high stability remains urgent for photoelectrochemical cathodic protection technology. In this work, we develop a "layered-closed" heterojunction (m-TiO2-f-BiVO4-c-CdS) with a well-matched energy band. The closed structure benefits to avoid the loss of active materials, and the layered structure with a well-matched energy band promotes the orderly separation of electrons and holes, thereby achieving a highly stable and sensitive photoelectmchemical protection performance in 3.5 wt% NaCl without hole scavenging agent (performance retention rates after 100 cycles and 3.3 h are as high as 86% and 80%, respectively).