| 多孔TiO_2光催化降解罗丹明B水溶液 |
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| 引用本文： | 杨和义,姜远光,费学宁. 多孔TiO_2光催化降解罗丹明B水溶液[J]. 城市环境与城市生态, 2011, 0(5): 17-20 |
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| 作者姓名： | 杨和义 姜远光 费学宁 |
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| 作者单位： | [1]天津滨海环保产业发展有限公司,天津300457 [2]天津城市建设学院,天津300384 |
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| 基金项目： | 天津市高等学校科技发展基金计划项目（20090518） |
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| 摘 要： | 以SiO2为模板剂,采用溶胶-凝胶-碱洗的方法制备多孔TiO2催化剂。经TEM和BET分析表明,多孔TiO2粒径约为10 nm,且颗粒大小分布均匀,其比表面积较大,约为167.572 m2/g。通过罗丹明B水溶液的光催化降解实验,考察了多孔TiO2的光催化活性。实验结果表明,初始pH=6,初始浓度30 mg/L的罗丹明...
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| 关 键 词： | 染料废水 光催化降解 多孔TiO2 罗丹明B水溶液 |
Degradation of Rhodamine Baqueous Solution by Porous TiO_2 |
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| YANG He-yi,JIANG Yuan-guang,FEI Xue-ning. Degradation of Rhodamine Baqueous Solution by Porous TiO_2[J]. Urban Environment & Urban Ecology, 2011, 0(5): 17-20 |
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| Authors: | YANG He-yi JIANG Yuan-guang FEI Xue-ning |
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| Affiliation: | 1.Tianjin Binhai Environmental Industry Development Ltd.Tianjin 300457,China;2.Tianjin Institute of Urban Construction.Tianjin 300384,China) |
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| Abstract: | The porous TiO2 was prepared with a sol-gel-caustic pretreating method by using SiO2 as a template.The porous TiO2 was characterized by TEM and BET.The results showed that specific surface area of the porous TiO2 was 167.572 m2/g and the particle size was 10nm with distributed homogeneously.The catalytic activity of the porous TiO2 was tested by the photodegradation of rhodamine B aqueous solution.The degradation experiments showed that the degradation efficiency of the rhodamine Baqueous solution with initial concentration of 30 mg/L and initial pH of 6 was high,and the degree of the decolourization could reached up to 100% after 90 min illumination under a 2g/L porous TiO2 and 6 mL/L H2 O2 dosage. |
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| Keywords: | dye wastewater photocatalytic degradation porous TiO2 rhodamine baqueous solution |
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