罗强;蔡启舟;

• 1:武汉轻工大学机械工程学院
• 2:华中科技大学材料成形与模具技术国家重点实验室

摘要(Abstract)：

首先采用微弧氧化法制备了多孔的TiO_2膜,然后以NH_4VO_3为反应介质,对其进行水热后处理,制备了V掺杂的TiO_2膜。分别利用环境扫描电镜(ESEM)、EDX能谱、X射线衍射仪(XRD)、紫外-可见分光光度计来分析两种膜层的形貌、元素组成、相组成、光吸收性能;并以亚甲基蓝为模型降解物,分别考察两种膜层在紫外光和可见光照射下的光催化活性。结果表明:两种膜层具有相似的形貌和相同的相组成。但是,与TiO_2膜相比,V掺杂的TiO_2膜的光吸收截止波长产生了明显的红移,带隙能显著减小,光催化活性也得到了有效的改善。

关键词(KeyWords)： TiO_2膜;光催化;V掺杂;微弧氧化;后处理

Abstract:

Keywords:

基金项目(Foundation): 武汉轻工大学校立科研计划重点项目(2015d7)

作者(Authors): 罗强;蔡启舟;

DOI: 10.16521/j.cnki.issn.1001-9642.2017.09.005

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