| contributor author | Bulent Armagan | |
| contributor author | Orhan Ozdemir | |
| contributor author | Mustafa Turan | |
| contributor author | Mehmet S. Çelik | |
| date accessioned | 2017-05-08T21:41:00Z | |
| date available | 2017-05-08T21:41:00Z | |
| date copyright | August 2003 | |
| date issued | 2003 | |
| identifier other | %28asce%290733-9372%282003%29129%3A8%28709%29.pdf | |
| identifier uri | http://yetl.yabesh.ir/yetl/handle/yetl/59309 | |
| description abstract | The adsorption of reactive dyes on sepiolite has been investigated in a series of batch adsorption experiments. Three reactive dyes (Everzol Black B, Everzol Red 3BS, Everzol Yellow 3RS H/C) were used in bottle adsorption studies. While no significant adsorption capacity was obtained for natural sepiolite, high-adsorptive capacities were observed upon using sepiolite modified with quaternary amines. The electrokinetic measurements along with calculations using the cross-sectional area reveal that the quaternary amines adsorb close to bilayer coverage. A mechanism involving electrostatic attraction of the anionic groups of dye molecules onto oppositely charged amine-modified sepiolite surface is proposed to be responsible for the uptake of dyes. The adsorption data were fitted to the Langmuir isotherm. It is found that the modified sepiolite yields adsorption capacities | |
| publisher | American Society of Civil Engineers | |
| title | Adsorption of Negatively Charged Azo Dyes onto Surfactant-Modified Sepiolite | |
| type | Journal Paper | |
| journal volume | 129 | |
| journal issue | 8 | |
| journal title | Journal of Environmental Engineering | |
| identifier doi | 10.1061/(ASCE)0733-9372(2003)129:8(709) | |
| tree | Journal of Environmental Engineering:;2003:;Volume ( 129 ):;issue: 008 | |
| contenttype | Fulltext | |
