| Ag／BaTiO3的制备及光催化性能 |
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| 引用本文： | 沈昱,程国伟,宋满堂.Ag／BaTiO3的制备及光催化性能[J].大连铁道学院学报,2012(1):76-79. |
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| 作者姓名： | 沈昱 程国伟 宋满堂 |
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| 作者单位： | [1]大连交通大学环境与化学工程学院,辽宁大连116028 [2]大连大化工程设计有限公司,辽宁大连116031 |
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| 摘 要： | 采用光催化还原法、浸渍法和水热法分别制备了Ag／BaTiO3催化剂．通过X-射线衍射（XRD）、扫描电子显微镜（SEM）、紫外-可见吸收光谱（UV—vis）等手段对改性后的催化剂进行表征，考察了掺杂Ag的不同制备方法、催化剂的载Ag量对催化剂光催化活性的影响．实验结果表明，改性后的BaTiO3对亚甲基蓝染料溶液的光催化降解能力有明显提高，采用光催化还原法制备的Ag／BaTiO3催化剂催化活性最高，载Ag量为1．0％的Ag／BaTiO3对亚甲基蓝的降解效果最好，紫外光照射4h后降解率为95％．
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| 关 键 词： | Ag／BaTiO3 光催化性能 光催化还原 浸渍 水热 亚甲基蓝 |
Preparation and Photocatalytic Properties of Ag/BaTiO3 |
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| SHEN Yu,CHENG Guo-wei,SONG Man-tang.Preparation and Photocatalytic Properties of Ag/BaTiO3[J].Journal of Dalian Railway Institute,2012(1):76-79. |
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| Authors: | SHEN Yu CHENG Guo-wei SONG Man-tang |
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| Institution: | 1. School of Environmental and Chemical Engineering, Dalian Jiaotong University,Dalian 116028, China; 2. Dalian Dahua Engi- neering Design Co. Ltd, Dalian 116031, China) |
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| Abstract: | Ag/BaTiO3 photocatalysts were prepared by photocatalytic reduction, impregnation process and hydrothermal method, and the photocatalysts were characterized by X-ray diffraction, scanning electron microscopy and ultraviolet-visible absorption spectroscopy. The catalytic activity of the samples is influenced by preparation methods and Ag content. The results indicate that the Ag doping improves the photocatalytic activity of the BaTiO3, and the Ag/BaTiO3 synthesized by the photocatalytic reduction shows the highest catalytic activity. The degradation rate of methylene blue can reach 95% with the synergistic action of Ag/BaTiO3 （ 1.0% Ag） and UV light irradiation （240 min）. |
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| Keywords: | Ag/BaTiO3 photocatalytic performance photoeatalytic reduction impregnation hydrothermal Methylene blue |
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