| Effect of biotite content of hydrogels on enhanced removal of cationic dye from aqueous solution | |
| Department | 环境材料与生态化学研究发展中心 |
Liu Y(刘毅) ; Zheng YA(郑易安); Wang AQ(王爱勤); 王爱勤 aqwang@licp.cas.cn
| |
| 2011 | |
| Source Publication | Ionics
 |
| ISSN | 0947-7047 |
| Volume | 17Issue:6Pages:535-543 |
| Abstract | A series of chitosan-g-poly(acrylic acid)/biotite (CTS-g-PAA/BT) hydrogels with unique clay biotite (BT) were prepared and used to remove cationic dye methylene blue (MB) from aqueous solution by batch adsorption experiments. Variables of the system including BT content, initial pH, contact time, initial concentration, and temperature affecting the adsorption efficiency of MB by CTS-g-PAA/BT hydrogels were investigated. Kinetic studies indicated that the adsorption data well followed pseudo second-order kinetics. Langmuir and Freundlich isotherm models were applied to experimental equilibrium data of MB adsorption depending on temperature. The adsorption equilibrium data obeyed Langmuir isotherm, and the monolayer adsorption capacity calculated from the Langmuir isotherm was 2,125.70 mg/g for CTS-g-PAA/10% BT at 30 °C. The adsorption capacity was much higher compared with other hydrogels with the same content of other clays. The introduction of BT into the hydrogel could effectively improve its adsorption properties and reduce the cost. Thermodynamic parameters were evaluated for the dye-adsorbent systems and revealed that the adsorption process was spontaneous and exothermic in nature. All the information gave an indication that CTS-g-PAA/10% BT could potentially be applied as an efficient adsorbent for cationic dye removal from aqueous solution. |
| Keyword | Hydrogel Biotite Methylene Blue Adsorption Equilibrium Kinetics |
| Subject Area | 功能高分子 |
| Funding Organization | 国家自然科学基金项目(20877077) |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | 功能复合材料组 |
| Document Type | 期刊论文 |
| Identifier | http://ir.licp.cn/handle/362003/79 |
| Collection | 环境材料与生态化学研究发展中心 |
| Corresponding Author | 王爱勤 aqwang@licp.cas.cn |
| Recommended Citation GB/T 7714 | Liu Y,Zheng YA,Wang AQ,et al. Effect of biotite content of hydrogels on enhanced removal of cationic dye from aqueous solution[J]. Ionics,2011,17(6):535-543. |
| APA | 刘毅,郑易安,王爱勤,&王爱勤 aqwang@licp.cas.cn.(2011).Effect of biotite content of hydrogels on enhanced removal of cationic dye from aqueous solution.Ionics,17(6),535-543. |
| MLA | 刘毅,et al."Effect of biotite content of hydrogels on enhanced removal of cationic dye from aqueous solution".Ionics 17.6(2011):535-543. |
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| 2011176535543.pdf（251KB） | 开放获取 | License | View Application Full Text | |||
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