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| Cr3+掺杂对TiO2薄膜光催化活性的影响 | |
| 引用本文： | 陈建华,王晓林,龚竹青,陈波.Cr3+掺杂对TiO2薄膜光催化活性的影响[J].环境科学学报,2005,25(5):606-610. |
| 作者姓名： | 陈建华 王晓林 龚竹青 陈波 |
| 作者单位： | 1. 广西大学资源与环境学院,南宁,530004;中南大学冶金科学与工程学院,长沙,410083 2. 广西大学资源与环境学院,南宁,530004 3. 中南大学冶金科学与工程学院,长沙,410083 |
| 摘 要： | 采用溶胶-凝胶法制备了TiO2粉末和以釉面瓷砖为载体的TiO2薄膜,讨论了不同Cr3+掺杂浓度对TiO2光催化活性的影响,并采用UVVIS对其光学性能进行了检测.结果表明,Cr3+掺杂和釉面瓷砖的交互作用能够显著提高TiO2薄膜的光催化活性,最佳掺杂浓度为6.04×1017个·cm-3,且随着TiO2光催化活性的提高,薄膜的吸收带边发生了明显的红移,提高了可见光的利用率. |
| 关 键 词： | 溶胶-凝胶法 釉面瓷砖 TiO2薄膜 Cr^3＋掺杂 交互作用 |
| 文章编号： | 0253-2468(2005)05-0606-05 |
| 收稿时间： | 2004/8/24 0:00:00 |
| 修稿时间： | 2004年8月24日 |
Influence of Cr3+-doped on the photocatalytic activity of nanometer TiO2 films |
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| CHEN Jianhu,WANG Xiaolin,GONG Zhuqing and CHEN Bo.Influence of Cr3+-doped on the photocatalytic activity of nanometer TiO2 films[J].Acta Scientiae Circumstantiae,2005,25(5):606-610. | |
| Authors: | CHEN Jianhu WANG Xiaolin GONG Zhuqing and CHEN Bo |
| Institution: | 1. College of Resources and Environment, Guangxi University, Nanning 530004; 2. College of Metallurgical Science and Engineering, Central South University, Changsha 410083,College of Resources and Environment, Guangxi University, Nanning 530004,College of Metallurgical Science and Engineering, Central South University, Changsha 410083 and College of Resources and Environment, Guangxi University, Nanning 530004 |
| Abstract: | TiO2 powder and TiO2 thin films on the surface of ceramic glaze were prepared by sol-gel method. The influences of doping different Cr3+ concentrations on the photocatalytic activity of TiO2 were discussed, and UV-VISwas used to test the optical performance of TiO2 films. The results showed that the interaction between Cr3+ and ceramic glaze increased the photocatalytic activity of the TiO2 films greatly, and the optimum doping concentration of Cr3+ was (6.04×1017 cm-3). In addition, with the enhancement of photocatalytic activity of the TiO2 film, the red shift of its absorption band edge occurred obviously and more visible light could be used. |
| Keywords: | sol-gel method ceramic glaze TiO_2 thin films Cr~(3+)-doped interaction effect |
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