| Mechanisms of Enhancement of Photocatalytic Properties and Activity of Nd^3＋ -Doped TiO2 for Methyl Orange Degradation |
| |
| 引用本文： | 侯梅芳,李芳柏,李瑞丰,万洪富,周国逸,谢克昌.Mechanisms of Enhancement of Photocatalytic Properties and Activity of Nd^3＋ -Doped TiO2 for Methyl Orange Degradation[J].中国稀土学报(英文版),2004,22(4):542-546. |
| |
| 作者姓名： | 侯梅芳 李芳柏 李瑞丰 万洪富 周国逸 谢克昌 |
| |
| 作者单位： | [1]SouthChinaInstituteofBotany,ChineseAcademyofSciences,Guangzhou510650,China [2]KeyLaboratoryofAgriculturalEnvironmentPollutionIntegratedControl,GuangdongInstituteofEco-environmentandSoilScience,Guanzhou510650,China [3]StateKeyLaboratoryofC1ChemistryandTechnology,TaiyuanUniversityofTechnology,Taiyuan030024,China |
| |
| 基金项目： | 国家自然科学基金，广东省自然科学基金，国家重点实验室基金 |
| |
| 摘 要： | Nd^3 -doped TiO2 powders were prepared by the sol-gel method. Their crystal pattern and parameter, the specific surface area, the surface chemical state of Ti and the ratio of O/Ti were characterized. The results show that Nd impurity hinders the crystal transformation, and decreases the relative intensity of (101) peak. The crystallite sizes of Nd^3 -doped TiO2 powders decrease while their specific surface area increase owing to the Nd^3 doping. The XPS measurement shows that the content of Ti (Ⅲ) and ratio of O/Ti on their surfaces increase significantly with the increase of Nd^3 dosage. The adsorption and photodegradation experiments show that the optimum molar content of Nd^3 is 1.2%.
|
| 关 键 词： | 光催化性 活性 Nd^3＋ 钕 TiO2 稀土元素 甲基橙 有机化合物 降解技术 净化技术 |
Mechanisms of Enhancement of Photocatalytic Properties and Activity of Nd3+-Doped TiO2 for Methyl Orange Degradation |
| |
| Hou Meifang ,Li Fangbai.Mechanisms of Enhancement of Photocatalytic Properties and Activity of Nd3+-Doped TiO2 for Methyl Orange Degradation[J].Journal of Rare Earths,2004,22(4):542-546. |
| |
| Authors: | Hou Meifang Li Fangbai |
| |
| Affiliation: | Hou Meifang ~1,Li Fangbai ~ |
| |
| Abstract: | Nd3 -doped TiO2 powders were prepared by the sol-gel method. Their crystal pattern and parameter, the specific surface area, the surface chemical state of Ti and the ratio of O/Ti were characterized. The results show that Nd impurity hinders the crystal transformation, and decreases the relative intensity of (101) peak. The crystallite sizes of Nd3 -doped TiO2 powders decrease while their specific surface area increase owing to the Nd3 doping. The XPS measurement shows that the content of Ti(Ⅲ) and ratio of O/Ti on their surfaces increase significantly with the increase of Nd3 dosage. The adsorption and photodegradation experiments show that the optimum molar content of Nd3 is 1.2%. |
| |
| Keywords: | catalytic chemistry photocatalysis TiO2 neodymium methyl orange rare earths |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
