| WO_3/TiO_2（NT）/UV降解处理印染废水研究 |
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| 引用本文： | 苗慧,黄燕,崔玉民.WO_3/TiO_2（NT）/UV降解处理印染废水研究[J].南阳理工学院学报,2009,1(6):60-63. |
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| 作者姓名： | 苗慧 黄燕 崔玉民 |
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| 作者单位： | 1. 阜阳师范学院化学化工学院,安徽,阜阳,236041;安徽省环境污染物降解与监测重点实验室,安徽,阜阳,236041
2. 阜阳师范学院化学化工学院,安徽,阜阳,236041 |
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| 基金项目： | 安徽省重点实验室和高校自然科学基金项目 |
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| 摘 要： | 以钨酸铵为钨源,介孔TiO2纳米管为载体,采用传统浸渍方法制备了WO3/TiO2纳米管复合材料。讨论了以WO3/TiO2纳米管为催化剂,影响印染废水光催化脱色的主要因素,实验结果表明：光催化降解印染废水符合一级反应动力学反应过程。以500℃焙烧的WO3/TiO2纳米管复合材料为光催化剂,当催化剂用量为500mg/L,UV光照2h,印染废水的脱色率达到97%以上。另外,催化剂具有较高的稳定性,失活后的催化剂可以通过简单的焙烧再生。
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| 关 键 词： | WO3/TiO2纳米管 光催化降解 印染废水 脱色率 |
PHOTOCATALYTIC ACTIVITY OF WO3/ TiO2 NANOTUBE ON TREATMENT OF DYE WASTEWATER |
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| Institution: | MIAO Hui ,HUANG Yan ,CUI Yu -min ( 1. College of Chemistry and Chemical Engineering,Fuyang Teachers College,Fuyang 236041,China; 2. Laboratory of Environmental Pollutants Degradation and Monitoring,Fuyang 236041,China) |
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| Abstract: | Using the TiO2 nanotube as the carrier and ammonium tungstate as the precursor,the novel WO3/TiO2 nanotube composite material was prepared by an incipient wetness method. With the dyeing wastewater as the final object of study,the primary factors which influenced the photocatalytic activity of WO3/TiO2 nanotube were discussed. The results showed that degradation of wastewater follows the first order kinetics equation. Using WO3/TiO2 nanotube as photocatalyst ,amount of catalyst is 500 mg/L,calcined temperature is 500 ℃ and illumination time is 2h,the photodegradation rate of wastewater could exceed 97%. In addition,the WO3/TiO2 nanotube catalyst was very stable. The deactivated catalyst could be regenerated by simple calcination. |
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| Keywords: | WO3/TiO2 nanotube Photocatalytic degradation Dyeing wastewater Decolorization rate |
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