Adsorption Properties of Lac Dyes on Wool, Silk, and Nylon
There has been growing interest in the dyeing of textiles with natural dyes. The research about the adsorption properties of natural dyes can help to understand their adsorption mechanism and to control their dyeing process. This study is concerned with the kinetics and isotherms of adsorption of la...
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| Format: | Article |
| Language: | English |
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Wiley
2013-01-01
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| Series: | Journal of Chemistry |
| Online Access: | http://dx.doi.org/10.1155/2013/546839 |
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| author | Bo Wei Qiu-Yuan Chen Guoqiang Chen Ren-Cheng Tang Jun Zhang |
| author_facet | Bo Wei Qiu-Yuan Chen Guoqiang Chen Ren-Cheng Tang Jun Zhang |
| author_sort | Bo Wei |
| collection | DOAJ |
| description | There has been growing interest in the dyeing of textiles with natural dyes. The research about the adsorption properties of natural dyes can help to understand their adsorption mechanism and to control their dyeing process. This study is concerned with the kinetics and isotherms of adsorption of lac dyes on wool, silk, and nylon fibers. It was found that the adsorption kinetics of lac dyes on the three fibers followed the pseudosecond-order kinetic model, and the adsorption rate of lac dyes was the fastest for silk and the slowest for wool. The activation energies for the adsorption process on wool, silk, and nylon were found to be 107.15, 87.85, and 45.31 kJ/mol, respectively. The adsorption of lac dyes on the three fibers followed the Langmuir mechanism, indicating that the electrostatic interactions between lac dyes and those fibers occurred. The saturation values for lac adsorption on the three fibers decreased in the order of wool > silk > nylon; the Langmuir affinity constant of lac adsorption on nylon was much higher than those on wool and silk. |
| format | Article |
| id | doaj-art-26131cab98004a65811749597097ec78 |
| institution | Kabale University |
| issn | 2090-9063 2090-9071 |
| language | English |
| publishDate | 2013-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Journal of Chemistry |
| spelling | doaj-art-26131cab98004a65811749597097ec782025-02-03T05:57:40ZengWileyJournal of Chemistry2090-90632090-90712013-01-01201310.1155/2013/546839546839Adsorption Properties of Lac Dyes on Wool, Silk, and NylonBo Wei0Qiu-Yuan Chen1Guoqiang Chen2Ren-Cheng Tang3Jun Zhang4National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow University, Suzhou 215123, ChinaNational Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow University, Suzhou 215123, ChinaNational Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow University, Suzhou 215123, ChinaNational Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow University, Suzhou 215123, ChinaSuzhou Institute of Trade and Commerce, 287 Xuefu Road, Suzhou 215009, ChinaThere has been growing interest in the dyeing of textiles with natural dyes. The research about the adsorption properties of natural dyes can help to understand their adsorption mechanism and to control their dyeing process. This study is concerned with the kinetics and isotherms of adsorption of lac dyes on wool, silk, and nylon fibers. It was found that the adsorption kinetics of lac dyes on the three fibers followed the pseudosecond-order kinetic model, and the adsorption rate of lac dyes was the fastest for silk and the slowest for wool. The activation energies for the adsorption process on wool, silk, and nylon were found to be 107.15, 87.85, and 45.31 kJ/mol, respectively. The adsorption of lac dyes on the three fibers followed the Langmuir mechanism, indicating that the electrostatic interactions between lac dyes and those fibers occurred. The saturation values for lac adsorption on the three fibers decreased in the order of wool > silk > nylon; the Langmuir affinity constant of lac adsorption on nylon was much higher than those on wool and silk.http://dx.doi.org/10.1155/2013/546839 |
| spellingShingle | Bo Wei Qiu-Yuan Chen Guoqiang Chen Ren-Cheng Tang Jun Zhang Adsorption Properties of Lac Dyes on Wool, Silk, and Nylon Journal of Chemistry |
| title | Adsorption Properties of Lac Dyes on Wool, Silk, and Nylon |
| title_full | Adsorption Properties of Lac Dyes on Wool, Silk, and Nylon |
| title_fullStr | Adsorption Properties of Lac Dyes on Wool, Silk, and Nylon |
| title_full_unstemmed | Adsorption Properties of Lac Dyes on Wool, Silk, and Nylon |
| title_short | Adsorption Properties of Lac Dyes on Wool, Silk, and Nylon |
| title_sort | adsorption properties of lac dyes on wool silk and nylon |
| url | http://dx.doi.org/10.1155/2013/546839 |
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