| 锶改性二氧化钛纳米材料的制备及其光催化性能 |
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| 引用本文： | 李成军,刘少友,龙杰凤,孙大方.锶改性二氧化钛纳米材料的制备及其光催化性能[J].凯里学院学报,2013(6):38-41. |
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| 作者姓名： | 李成军 刘少友 龙杰凤 孙大方 |
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| 作者单位： | [1]贵州凯里经济开发区初级中学,贵州凯里556011 [2]凯里学院化学与材料工程学院,贵州凯里556011 |
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| 基金项目： | 贵州省科学技术厅自然科学基金资助项目（黔科合J字[2010]2006）;贵州省材料物理与化学特色重点学科建设基金（黔教高发[2011]208）;贵州省教育厅市州地普通本科高校教育质量提升科研项目（黔教高发[2011]278） |
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| 摘 要： | 以氯化锶、钛酸丁酯为原料，以CTAB为模板，固相合成锶掺杂二氧化钛纳米材料，并用X射线衍射（XRD），扫描电子显微镜（SEM），紫外-可见光光谱（UV—Vis），傅立叶红外光谱仪（FI—IR）对样品进行表征．并以xPA—VII型光化学反应仪对茜素红进行可见光降解．结果表明，锶离子已进入TiO2的晶格中，锶掺杂二氧化钛（Sr／TiO：）样品的晶粒尺寸在7—20nm之间，Sr-O-Ti键的弯曲伸缩振动峰为l089cm-1，并改变TiO2表面极性．Sr／TiO，样品对茜素红水溶液具有很强的可见光降解能力，在温度200C、pH为7的条件下，20mg／L的茜素红水溶液60rain内的降解率达98．2％，远高于纯TiO，的降解率（28．7％）．
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| 关 键 词： | 锶 二氧化钛 固相合成 可见光降解 茜素红 |
Preparation and Photocatalytic Properties of Strontium Modified Titanium Dioxide Nanomaterial |
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| LI Cheng-jun,LIU Shao-you,LONG Jie-feng,SUN Da-fang.Preparation and Photocatalytic Properties of Strontium Modified Titanium Dioxide Nanomaterial[J].Journal of Southeast Guizhou National Teachers College,2013(6):38-41. |
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| Authors: | LI Cheng-jun LIU Shao-you LONG Jie-feng SUN Da-fang |
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| Institution: | 2 (1. Primary High School of Kaili Economic Development Zone, Kaili, Guizhou, 556011 ; 2. College of Chemistry and Materials Engineering, Kaili University, Kaili, Guizhou, 556011, China) |
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| Abstract: | Strontium chloride, tetrabutyl titanate as raw materials and CTAB as a template, solid- phase synthesis of strontium-doped titania （Sr/TiO2 ） nanomaterial was characterized by X-ray diffrac- tion （XRD）, Scanning Electron Microscope （SEM）, Ultraviolet -visible spectroscopy （UV-Vis）, In- frared spectroscopy （IR） ; and the visible light degradation of alizarin red with XPA VII-type photo- chemical reaction apparatus was carried out. The result showed that Sr2＋ had been entered into the crystal lattice of titania and then the surface polarity was changed. The average grain size of Sr/TiO2 nanopaxticles was in 7-20 nm, the bending and stretching vibration peak of Sr-O-Ti bond on the surface was 1 089 cm-l. The strong visible light degradation ability for alizarin red solution was presented, at 20℃ ,pH =7, the degradation rate of 98.2% alizarin red solution of 20 mg/L was obtained by the visi- ble light irradiation for 60 min. It was much higher than that of pure TiO2 （28.7%）. |
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| Keywords: | strontium titanium dioxide solid-phase synthesis visible light degradation alizarin red |
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