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| 铂修饰的TiO2柱撑膨润土复合光催化剂的制备及光催化活性研究 | |
| 引用本文： | 李益民,鲁越青,裘欢欢,刘颖,李海洋.铂修饰的TiO2柱撑膨润土复合光催化剂的制备及光催化活性研究[J].无机材料学报,2005,20(4):902-906. |
| 作者姓名： | 李益民 鲁越青 裘欢欢 刘颖 李海洋 |
| 作者单位： | 1. 绍兴文理学院化学系,绍兴,312000;中国科学院安徽光学精密机械研究所环境光谱学实验室,合肥,230031 2. 绍兴文理学院化学系,绍兴,312000 3. 中国科学院安徽光学精密机械研究所环境光谱学实验室,合肥,230031 4. 中国科学院安徽光学精密机械研究所环境光谱学实验室,合肥,230031;中国科学院大连化学物理研究所,大连,116023 |
| 基金项目： | 国家自然科学基金(20073042);浙江省自然科学基金(202018) |
| 摘 要： | 钛酸四异丙酯在醋酸溶液中水解生成的多核钛离子经离子交换反应插入到膨润土层间，制得钛柱撑膨润土(TiO2-PILC)，再通过光沉积法合成了一系列不同铂量修饰的钛柱撑膨润土(Pt-TiO2-PILCs)；用XRD、BET和TEM对制得的复合催化剂进行了性能表征；以五氯酚钠为目标污染物，考察了它们的催化活性．结果表明：柱撑膨润土中TiO2主要以锐钛型存在，含铂的Pt-TiO2-PILCs的催化活性明显高于TiO2-PILC．此外该复合催化剂还具有回收容易、重复使用性好等特点． |
| 关 键 词： | 钛柱撑膨润土 铂 光沉积法 光催化活性 五氯酚钠 |
| 文章编号： | 1000-324X(2005)04-0902-05 |
| 收稿时间： | 2004-7-1 |
| 修稿时间： | 2004-10-10 |
Preparation and Photocatalytic Activity of Pt-modified TiO2 Pillared Bentonite |
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| LI Yi-Min,LU Yue-Qing,QIU Huan-Huan,LIU Ying,Li Hai-Yang.Preparation and Photocatalytic Activity of Pt-modified TiO2 Pillared Bentonite[J].Journal of Inorganic Materials,2005,20(4):902-906. | |
| Authors: | LI Yi-Min LU Yue-Qing QIU Huan-Huan LIU Ying Li Hai-Yang |
| Affiliation: | 1.DepartmentofChemistry;ShaoxingCollegeofArtsandSciences;Shaoxing312000;China;2.LaboratoryofEnvironmentSpectroscopy;AnhuiInstituteofOpticsandFineMechanics;ChineseAcademyofSciences;Hefei230031;3.DalianInstituteofChemicalPhysics;Dalian116023;China |
| Abstract: | TiO2 pillared bentonite (TiO2-PILC) was prepared with an intercalation of polynu-clear titanium complex formed by reaction of Ti(i-C3H7O)4 and acetic acid. TiO2 pillared bentonites modified with platinum (Pt-TiO2-PILCs) were carried out via the photodeposition method. Characteristics of the pillared bentonites were examined by XRD, BET, TEM. TiO2-PILC and Pt-TiC-2-PILCs were used as composite photocatalysts in photocatalytic degradation of sodium pentachlorophenate(PCP-Na). The results indicate that all the pillared bentonites contain TiO2 in the anatase phase and with a mean crystallite size of TiO2 about 5nm. The photocatalytic activities of Pt-TiO2-PILCs are superior to that of TiO2-PILC. In addition, the experiments also illustrate that the composite photocatalysts can be easily recovered, regenerated and reused. |
| Keywords: | TiO2 pillared bentonite platinum photodeposition method photocatalytic activity sodium pentachlorophenate |
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