操芳芳,金良茂,彭程,王萍萍,汤永康

• 1:蚌埠玻璃工业设计研究院
• 2:浮法玻璃新技术国家重点实验室

摘要(Abstract)：

采用四氯化钛水解法制备了一系列不同Ag掺杂量的纳米Ag-TiO_2复合薄膜,运用X射线衍射(XRD)、扫描电镜(SEM)、紫外-可见(UV-Vis)光谱、光致发光(PL)谱、可见光透过(T%)光谱等手段对Ag-TiO_2进行了表征,采用接触角测量仪考察了Ag含量对TiO_2薄膜亲水性的影响,并以8W(λ=254nm)的UV灯作为光源,评价了各薄膜光催化降解亚甲基蓝的活性。UV-Vis测试结果表明,Ag的掺杂使TiO_2吸收边发生红移,有效增强可见光的吸收能力。PL测试结果表明,Ag能显著抑制光生电子(e-)和空穴(h+)的复合。T%光谱测试结果表明,Ag掺杂不影响TiO_2薄膜的可见光透过率。Ag的存在大幅度提高了TiO_2薄膜的亲水性以及对亚甲基蓝的光催化降解活性,当掺杂Ag的质量分数为1%时,TiO_2薄膜与水的接触角几乎为0°,同时可使TiO_2薄膜的光催化活性提高约1.5倍。

关键词(KeyWords)： 二氧化钛薄膜;银掺杂;亲水性;光催化;亚甲基蓝

Abstract:

Keywords:

基金项目(Foundation): 国家“973”计划(2012CB724608);; 安徽省自然科学基金(1408085MKL67);; 安徽省科技攻关计划项目(1301021015)

作者(Author): 操芳芳,金良茂,彭程,王萍萍,汤永康

DOI: 10.13289/j.issn.1009-6264.2016.03.002

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