| Autor: |
Maya Kebaili, Amani Touati, Souad Djellali, Rachid Sahraoui |
| Rok vydání: |
2021 |
| Předmět: |
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| Zdroj: |
Recent Advances in Environmental Science from the Euro-Mediterranean and Surrounding Regions (2nd Edition) ISBN: 9783030512095 |
| Popis: |
This work deals with the elaboration of a novel adsorbent based on polyaniline and pectin for the removal of dyes from aqueous solutions. Pectin and aniline are used to synthesize polyaniline/pectin (PAPEC) biosorbents. The different materials are characterized by FTIR and UV-VIS spectroscopy and their points of zero charge are also determined. The ability of pectin and the synthesized polymers (PANI and PAPEC) to remove the cationic dye (methylene blue) (MB) from aqueous solutions was investigated using the UV-VIS spectroscopy at different values of pH and contact time. The FTIR spectra of pectin and polyaniline showed the characteristic bands of each polymer while the polyaniline/pectin spectrum revealed the presence of the band characteristics of both polymers. Furthermore, the obtained results indicated an optimum adsorption pH for all materials at about 10; however, the contact time required to obtain the maximum adsorption was found to be 15 minutes for pectin and 45 min for polyaniline and polyaniline/pectin. In addition, the comparison of the maximum amounts of methylene blue adsorbed on the various adsorbents shows that the highest value is obtained with polyaniline/pectin biosorbent. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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