Removal of congo red from aqueous solution by sorption on organified rectorite
文献类型：期刊论文
| 作者 | Liu, Yi1,2; Wang, Wenbo1,2; Wang, Aiqin1 |
| 刊名 | Clean-soil air water
 |
| 出版日期 | 2010-07-01 |
| 卷号 | 38期号:7页码:670-677 |
| 关键词 | Congo red Dyes Kinetics Rectorite Sorption isotherm |
| ISSN号 | 1863-0650 |
| DOI | 10.1002/clen.200900130 |
| 通讯作者 | Wang, aiqin(aqwang@lzb.ac.cn) |
| 英文摘要 | 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 (cta(+)-rec) modified by cetyltrimethylammonium bromide (ctab) as adsorbents. the effects of organification degree of cta(+)-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 cta(+)-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 (delta s(0)), enthalpy of sorption (delta h(0)), and gibbs free energy of sorption (delta g(0)) were obtained and analyzed. fourier transform infrared study revealed that a chemisorption process occurred between cr and cta(+)-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. |
| WOS关键词 | METHYLENE-BLUE ; ACTIVATED CARBON ; ADSORPTION BEHAVIOR ; SURFACE-AREA ; BASIC-DYES ; EQUILIBRIUM ; KINETICS ; MECHANISM ; MONTMORILLONITE ; THERMODYNAMICS |
| WOS研究方向 | Environmental Sciences & Ecology ; Marine & Freshwater Biology ; Water Resources |
| WOS类目 | Environmental Sciences ; Marine & Freshwater Biology ; Water Resources |
| 语种 | 英语 |
| WOS记录号 | WOS:000281262800012 |
| 出版者 | WILEY-V C H VERLAG GMBH |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2411136 |
| 专题 | 中国科学院大学 |
| 通讯作者 | Wang, Aiqin |
| 作者单位 | 1.Chinese Acad Sci, Lanzhou Inst Chem Phys, Ctr Ecomat & Green Chem, Lanzhou 730000, Peoples R China 2.Chinese Acad Sci, Grad Univ, Beijing, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, Yi,Wang, Wenbo,Wang, Aiqin. Removal of congo red from aqueous solution by sorption on organified rectorite[J]. Clean-soil air water,2010,38(7):670-677. |
| APA | Liu, Yi,Wang, Wenbo,&Wang, Aiqin.(2010).Removal of congo red from aqueous solution by sorption on organified rectorite.Clean-soil air water,38(7),670-677. |
| MLA | Liu, Yi,et al."Removal of congo red from aqueous solution by sorption on organified rectorite".Clean-soil air water 38.7(2010):670-677. |
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来源：中国科学院大学
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