| 钛柱撑蒙脱石对罗丹明B的吸附性能 |
| |
| 引用本文： | 何正先,张宝述,彭同江,孙红娟,董发勤,宋绵新.钛柱撑蒙脱石对罗丹明B的吸附性能[J].四川建材学院学报,2011(4):18-22. |
| |
| 作者姓名： | 何正先 张宝述 彭同江 孙红娟 董发勤 宋绵新 |
| |
| 作者单位： | [1]西南科技大学四川省非金属复合与功能材料重点实验室,四川绵阳621010 [2]西南科技大学矿物材料与应用研究所,四川绵阳621010 |
| |
| 基金项目： | 国家自然科学基金（41072033）. |
| |
| 摘 要： | 采用酸性溶胶法制备了钛柱撑蒙脱石，研究了不同温度、pH值条件下样品对罗丹明B的吸附性能。结果表明，钛柱撑可以提高蒙脱石对水溶液中罗丹明B染料的吸附能力，吸附过程动力学符合准二级近似，为不可逆化学吸附，平衡吸附数据基本符合Langmuir和Freundlich吸附等温式；随着温度升高和pH值增大，钛柱撑蒙脱石对罗丹明B的吸附量下降，在温度298K左右，pH值低于3时吸附效果较好。
|
| 关 键 词： | 钛柱撑蒙脱石 罗丹明B 化学吸附 动力学 |
Study on Rhodamine B Adsorption onto Titanium Pillared Montmorillonite |
| |
| Authors: | HE Zheng-xian ZHANG Bao-shu ＇ PENG Tong-jiang SUN Hong-juan DONG Fa-qin SONG Mian-xin |
| |
| Affiliation: | 2 ( 1. State Key Laboratory Cultivation Base for Nonmetal Composites and Functional Materials, Southwest University of Science and Technology, Mianyang 621010, Sichuan, China ; 2. Research Institute of Mineral Materials and Application, Southwest University of Science and Technology, Mianyang 621010, Sichuan, China) |
| |
| Abstract: | The adsorption of rhodamine B onto titanium pillared montmorillonite prepared by sol-acid method has been studied at different temperature and pH. The results indicate that the titanium pillaring can enhance the adsorption performance of rhodamine B in solution by montmorillonite. The adsorption kinetics, which followed pseudo-second order approximate model, is irreversible. The equilibrium adsorption data can better fit with both Langmuir and Freundlich adsorption isothermal equation. The adsorption capacity of rhodamine B onto titanium pillared montmorillonite decreases with the increasing of temperature and pH. The adsorption effect is better at temperature about 298 K and below pH 3. |
| |
| Keywords: | Titanium pillared montmorillonite Rhodamine B Adsorption isotherm Kinetics |
| 本文献已被 维普 等数据库收录！ |
|
