| 真空紫外光-TiO2催化降解气态偏二甲肼 |
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| 引用本文： | 戴津星,贾瑛,许国根,商鹏溟.真空紫外光-TiO2催化降解气态偏二甲肼[J].化工环保,2019,39(1):45-49. |
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| 作者姓名： | 戴津星 贾瑛 许国根 商鹏溟 |
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| 作者单位： | 火箭军工程大学,陕西 西安,710025;火箭军工程大学,陕西 西安,710025;火箭军工程大学,陕西 西安,710025;火箭军工程大学,陕西 西安,710025 |
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| 摘 要： | 以钛箔为载体,采用溶胶-凝胶法及浸渍-烘焙-煅烧法制备了负载型TiO2薄膜,并进行了SEM,EDS,XRD表征。探讨了TiO2薄膜对气态偏二甲肼的光催化降解效果,并对比研究了不同紫外光源、不同初始浓度对气态偏二甲肼降解效果的影响。实验结果表明：TiO2均匀负载在钛箔上且为多孔状的薄膜;偏二甲肼质量浓度为877 mg/m3时,反应17 min后偏二甲肼的降解率为99.99%,500 mg/m3时反应60 min后偏二甲肼的矿化率达到41.58%。
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| 关 键 词： | 偏二甲肼 废气 光催化 二氧化钛 真空紫外光 |
| 收稿时间： | 2018-05-28 |
Catalytic degradation of gaseous unsymmetrical dimethylhydrazine（UDMH）by vacuum ultraviolet-TiO2 film |
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| DAI Jinxing,JIA Ying,XU Guogen,SHANG Pengming.Catalytic degradation of gaseous unsymmetrical dimethylhydrazine（UDMH）by vacuum ultraviolet-TiO2 film[J].Environmental Protection of Chemical Industry,2019,39(1):45-49. |
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| Authors: | DAI Jinxing JIA Ying XU Guogen SHANG Pengming |
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| Affiliation: | Rocket Force University of Engineering,Xi’an 710025,China |
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| Abstract: | The supported TiO2 film was prepared by sol-gel method and impregnation-roasting-calcination method using titanium foil as a carrier,and characterized by SEM,EDS and XRD. The photocatalytic degradation effect of gaseous unsymmetrical dimethylhydrazine（UDMH）by the TiO2 thin film was investigated. The effects of different ultraviolet light sources and different initial concentrations on degradation of gaseous UDMH were compared. The results showed that：TiO2 was uniformly loaded on titanium foil in the form of porous film;When the mass concentration of UDMH was 877 mg/m3,the degradation rate of UDMH was 99.9% after 17 min of reaction and the mineralization rate of UDMH was 41.58% after 60 min of reaction with 500 mg/m3 of UDMH. |
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| Keywords: | unsymmetrical dimethylhydrazine（UDMH） waste gas photocatalytic titanium dioxide vacuum ultraviolet（VUV） |
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