| Autor: |
Radia, Nadher D., Aljeboree, Aseel M., Mahdi, Ahmed B., Sahib, Ibrahim J., Alkaim, Ayad F. |
| Předmět: |
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| Zdroj: |
AIP Conference Proceedings; 2023, Vol. 2977 Issue 1, p1-10, 10p |
| Abstrakt: |
This study used sodium alginate-g-poly (acrylic acid-maleic acid)/TiO2 nanocomposite hydrogel as an effective adsorbent surface removal crystal violet (CV) from the solution. The nanocomposite structure and morphology were studied using (FE-SEM), (TEM), (EDX), and (AFM). Study the different effect parameters like the effect of solution pH, the effect of concentration salt, and the effect of solution temperature. The result found the amount of CV dye adsorption is little at pH=3 and then gradually increases until it reaches a peak at (pH=6). The amount of CV dye adsorption on the adsorbent surface decreases with increased salt concentration. Adsorption of (SA-g-(PAA-MA)/TiO2) hydrogel increased with increased solution pH, and the most successful result was pH=6, and the adsorption efficiency decreased with increased ionic strength. Thermodynamic parameters at several temperatures (15, 20, 25, and 30 °C) revealed that the adsorption process was spontaneous. Thermodynamic parameter for the adsorption process of CV dye, that negative value of the enthalpy indicates that the CV dye adsorption process is exothermic. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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