采用电化学阳极氧化法在钛表面制备TiO2纳米管阵列,并用稀土铈对其修饰改性.以甲基橙为目标降解物,考察了Ce3+溶液浓度、甲基橙溶液的初始浓度和初始pH对铈改性的TiO2纳米管光催化活性的影响.结果表明:Ce3+溶液的浓度存在一个最佳值,当Ce3+溶液浓度为0.01 mol/L,在10 mg/L,pH =3的甲基橙溶液中光催化活性最好.光照4h后,甲基橙的降解率达83％.
参考文献
| [1] | 葛增娴,魏爱香,赵旺,刘俊,刘传标.TiO2纳米花的合成及其在染料敏化太阳能电池中的应用[J].人工晶体学报,2010(05):1181-1185. |
| [2] | 李晓红,张校刚,力虎林.Tio2纳米管的模板法制备及表征[J].高等学校化学学报,2001(01):130-132. |
| [3] | 赖跃坤,孙岚,左娟,林昌健.氧化钛纳米管阵列制备及形成机理[J].物理化学学报,2004(09):1063-1066. |
| [4] | 马琦,张保住,张志强,任建国,张智敏.CeO2-TiO2复合光催化剂的制备及日光催化研究[J].应用化工,2005(03):153-155. |
| [5] | Jun L;Jimmy C Y .An Investigation on Photocatalytic Activities of Mixed TiO2-rare Earth Oxides for the Oxidation of Acetone in Air[J].Journal of Photochemisty and Photobiology,1998,116(01):63-67. |
| [6] | 任富建,刘红娟,沈毅.金属离子掺杂TiO2薄膜的光催化性能研究[J].钛工业进展,2006(04):31-34. |
| [7] | Tsong Y W;Chi C W .Heterogeneous Photocatalytic Oxidation of Phenol with Titanium Dioxide Powders[J].Industrial and Engineering Chemistry Research,1991,30(06):1293-1300. |
| [8] | Okamoto K;Yamamoto Y;Anaka H T et al.Heterogeneous Photocatalytic Decomposition of Phenol over TiO2 Powder[J].Bulletin of the Chemical Society of Japan,1985,58(07):2015-2022. |
| [9] | Reutergardh L B;Angphasuk M .photocatalytic Decolourization of Reactive AZO Dye:A Comparison between TiO2 and CdS Photocatalysis[J].Chemosphere,1997,35(03):585-596. |
| [10] | M.R. Sohrabi;M. Ghavami .Photocatalytic degradation of Direct Red 23 dye using UV/TiO_2: Effect of operational parameters[J].Journal of hazardous materials,2008(3):1235-1239. |
| [11] | Siffert B .Study on the Interaction of Titanium Dioxide with Cellulose Fibers in An Aqueous Medium[J].Colloids and Surfaces,1991,53(01):79-99. |
| [12] | O Shea K E;Pemas E;Saiers J .The Influence of Mineralization Products on the Coagulation of TiO2 Photocatalyst[J].Langmuir,1999,15(06):2071-2076. |
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