| Autor: |
Gusnia, Yessi, Widayani, Widayani |
| Předmět: |
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| Zdroj: |
AIP Conference Proceedings; 2024, Vol. 3095 Issue 1, p1-10, 10p |
| Abstrakt: |
Methylene blue (MB) dye waste is pollutant commonly produced from textile factories that are harmful to the environment, so it must be treated before being released into the environment. In this study, removing of MB dye waste was carried out through an adsorption process by the adsorbent in the form of composite of montmorillonite (MMT) and chitosan (CS). MMT-CS composites were prepared using varied CS mass concentration (20%, 40%, 60%, 80% and 100%) of MMT to know the effect of CS on adsorption capacity. The MB adsorption was studied using UV-Vis spectrophotometer. The measurement results showed that the highest adsorption capacity (qt) was 2.86241 mg/g, which was achieved at contact time of 45 minutes by the MMT-CS 100% composite which 95.41% of MB is adsorbed. Adsorption kinetics were studied with pseudo-first order and pseudo-second order kinetics. It was found that the mechanism of adsorption kinetic follows pseudo-second order with a rate constant (k2) increases with increasing CS. The highest k2 value is 8.13923 g mg−1min−1 which was obtained for composite of MMT-CS 100% with the correlation coefficient reached 0.9999. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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