Abstract
In the present work, adsorption of basic red 46 (BR46) by nano-sized montmorillonite (MMT)/calcium alginate (CA) composite was optimized using central composite design. The maximum dye removal of 85.07% was obtained at an initial dye concentration of 30mgL-1, adsorbent dosage of 2gL-1, contact time of 60min and temperature of 25°C. The adsorption capacity decreased with decreasing both initial pH and mixing speed. The pseudo-second order kinetic model had the highest correlation coefficient (R2=1.00). Based on the Langmuir isotherm model, the maximum adsorption capacity of MMT/CA was about 35mgg-1.
| Original language | English |
|---|---|
| Pages (from-to) | 1197-1207 |
| Number of pages | 11 |
| Journal | Journal of Industrial and Engineering Chemistry |
| Volume | 21 |
| DOIs | |
| Publication status | Published - 25 Jan 2015 |
| Externally published | Yes |
Bibliographical note
Publisher Copyright:© 2014 The Korean Society of Industrial and Engineering Chemistry.
Keywords
- Adsorption
- Biocomposite
- Experimental design
- Nano-clay
- Nanocomposite