Eu~(3+)/TiO_2光催化剂降解罗丹明B |
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引用本文: | 刘丽静.Eu~(3+)/TiO_2光催化剂降解罗丹明B[J].信阳师范学院学报(自然科学版),2014(1):96-99. |
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作者姓名: | 刘丽静 |
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作者单位: | ;1.包头师范学院化学学院 |
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摘 要: | 采用溶胶-凝胶法合成了不同Eu3+掺杂量、不同煅烧温度的Eu3+/TiO2的光催化剂,利用XRD和FT-IR对样品进行表征和分析.以罗丹明B为目标降解物,对所制样品光活性进行了研究;同时,考察了助催化剂对其光催化性能的影响.结果表明,稀土Eu3+的掺杂能细化晶粒,在500℃下煅烧,Eu3+/TiO2摩尔数比为0.05%的催化剂,加入5 mL助催化剂,三基色节能灯照射3 h,降解率可达91.8%.
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关 键 词: | 光催化剂 助催化剂 稀土掺杂 形成机理 |
Photocatalytic Degradation of Rhodamine B by Eu~(3+) Dope TiO_2 |
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Institution: | ,Department of Chemistry,Baotou Teachers College |
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Abstract: | The Eu3 +/TiO2photocatalyst with different amount doped Eu3 +and different calcination temperatures were synthesized by sol-gel method,and the obtained photocatalyst were characterized by XRD and FT-TR. Rhodamine B was used as the target degradation of the optical activity of the prepared samples; also,the influence of cocatalyst on its photocatalytic performance was investigated. The results showed that rare earth doping of Eu3 +could grain the refinement,and when calcined at 500 ℃,Eu3 +/TiO2molar ratio of 0. 05% catalyst,added 5 mL cocatalyst,irradiated under tricolor energy 3 h,the degradation rate could be 91. 8%. |
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Keywords: | photocatalyst cocatalyst rare earth doped formation mechanism |
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