| Removal of congo red from aqueous solution by adsorption on organified rectorite | |
| Department | 环境材料与生态化学研究发展中心 |
Liu Y(刘毅) ; Wang WB(王文波); Wang AQ(王爱勤); 王爱勤 aqwang@licp.cas.cn
| |
| 2010 | |
| Source Publication | CLEAN - Soil, Air, Water
 |
| ISSN | 1863-0650 |
| Volume | 38Issue:7Pages:670-677 |
| Abstract | Batch sorption technique was carried out for the removal of anionic dye Congo red (CR) from aqueous solution using raw rectorite (R-REC) and organified rectorite (CTAþ-REC) modified by cetyltrimethylammonium bromide (CTAB) as adsorbents. The effects of organification degree of CTAþ-REC as well as the process parameters including the pH of dye solution, sorption time, and initial dye concentration on adsorption capacity for CR were investigated and the sorption kinetics was also evaluated. The results showed that the sorption behaviors of R-REC and CTAþ-REC for CR followed pseudo-second-order kinetic model and the sorption equilibrium data perfectly obeyed the Langmuir isotherm. The thermodynamic parameters including entropy of sorption (DS0), enthalpy of sorption (DH0), and Gibbs free energy of sorption (DG0) were obtained and analyzed. Fourier transform infrared study revealed that a chemisorption process occurred between CR and CTAþ-REC. REC modified by cationic surfactants showed the higher adsorption capacities for CR compared to R-REC and in theory would be used as an efficient and promising adsorbent for the removal of anionic dyes in wastewater treatment. |
| Keyword | Congo Red Dyes Kinetics Rectorite Sorption Isotherm |
| Subject Area | 功能高分子 |
| Funding Organization | 江苏省科技厅项目(BE2008087) |
| 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/362003/135 |
| 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,Wang WB,Wang AQ,et al. Removal of congo red from aqueous solution by adsorption on organified rectorite[J]. CLEAN - Soil, Air, Water,2010,38(7):670-677. |
| APA | 刘毅,王文波,王爱勤,&王爱勤 aqwang@licp.cas.cn.(2010).Removal of congo red from aqueous solution by adsorption on organified rectorite.CLEAN - Soil, Air, Water,38(7),670-677. |
| MLA | 刘毅,et al."Removal of congo red from aqueous solution by adsorption on organified rectorite".CLEAN - Soil, Air, Water 38.7(2010):670-677. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| 2010387670677.pdf（264KB） | 开放获取 | License | View Application Full Text | |||
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