Characterization and Photocatalytic Activity of ZnO/AgNbO3
Source abstract
Abstract
采用浸渍法合成ZnO/AgNbO 3 异质结光催化环境净化材料. 利用X射线衍射(XRD)、X射线光电子能谱(XPS)、扫描电镜(SEM)、紫外漫反射(DRS)等分析方法对催化剂进行了表征. XRD分析结果表明, Zn的掺杂并未改变本体AgNbO 3 的晶型结构; 随着Zn掺杂量和热处理温度的提高, 异质结光催化剂体系中ZnO晶相结构逐渐出现;同时, XPS结果也说明Zn以ZnO的形式存在. DRS分析说明ZnO的引入有助于提高可见光区的吸收强度. 无论在可见光还是紫外光照射下, 光催化降解亚甲基蓝染料(MB)实验证明ZnO掺杂有利于提高AgNbO3的活性. 当Zn掺杂量为3 wt%, 热处理温度为300℃时, 紫外光照射3 h下MB降解率达到93.5%. 并对ZnO引入后光催化活性提高的机理进行了分析.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Advanced Photocatalysis Techniques · TiO2 Photocatalysis and Solar Cells · Gas Sensing Nanomaterials and Sensors
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (19)
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