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应用射线束制备可见光响应的TiO_2薄膜 被引量：1

Application of Beam Irradiation in Preparation of Visible-Light Responsive TiO_2 Films
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摘要 由溶胶-凝胶法制备了TiO2薄膜.为了改善TiO2对光的利用效率,采用过渡金属离子(V+和Cr+)注入和电子束辐照沉积贵金属纳米颗粒(Ag和Pt)两种射线束技术对TiO2薄膜进行改性.紫外-可见光谱表明,两种射线束技术改性的TiO2薄膜的吸收光谱都发生了红移,说明这两种方法都是拓展TiO2吸收光谱的有效手段.通过光催化降解甲基橙实验,比较了两种方法对TiO2可见光光催化能力的拓展情况,结果表明,两种方法均可显著提高TiO2在可见光作用下的光催化活性. In order to improve the utilization of visible light, implantation of transition metals （V^＋ , Cr^＋ ） and deposition of noble metals （Ag, Pt） through electron beam irradiation were used to modify TiO2 films prepared by the sol-gel method. A red shift was found in the ultraviolet-visible spectra of the modified TiO2 films. Photocatalytic degradation of methyl orange showed that the photocatalytic activity of TiO2 films under visible light irradiation was increased dramatically by the two methods.
作者 侯兴刚 顾雪楠 刘安东
机构地区 北京师范大学低能核物理研究所教育部射线束技术与材料改性重点实验室北京市辐射中心
出处 《催化学报》 SCIE CAS CSCD 北大核心 2007年第1期39-44,共6页
基金 国家高技术研究发展计划(863计划 2001AA338020)
关键词 射线束改性 二氧化钛 电子束 离子注入 可见光 甲基橙 降解 beam irradiation modification titania electron beam ion implantation visible light methyl orange degradation
分类号 O614.411 [理学—无机化学]
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参考文献17

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共引文献82

同被引文献21

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催化学报
2007年 第1期

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