Kinetics and Isotherm Analysis of Cr (VI) Adsorption by Iron-Based Nanoparticles Using Aqueous Saffron Tepal Extract
In this study, the iron nanoparticles (Fe NPs) extract were synthesized by saffron tepal. Fe NPs were utilized for chromium (Cr) (VI) removal from the aqueous solution. Maximum adsorption efficiency Cr (VI) was achieved at pH 2, reaction time 240 min, and Fe NPs dosage 2 g/L. Under optimal condition...
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| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
2025-01-01
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| Series: | International Journal of Chemical Engineering |
| Online Access: | http://dx.doi.org/10.1155/ijce/6022213 |
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| Summary: | In this study, the iron nanoparticles (Fe NPs) extract were synthesized by saffron tepal. Fe NPs were utilized for chromium (Cr) (VI) removal from the aqueous solution. Maximum adsorption efficiency Cr (VI) was achieved at pH 2, reaction time 240 min, and Fe NPs dosage 2 g/L. Under optimal conditions, more than 90% of Cr (VI) with a concentration of 100 mg/L was removed through as-synthesized Fe NPs. The Cr (VI) adsorption trend was consistent with pseudo-second-order kinetics and Langmuir adsorption isotherm trend. The results confirmed the potential adsorption mechanism followed the chemisorption process such as electrostatic interactions, chemical ion exchange and chemical particle diffusion. Besides, physical adsorption may have a contribution in Cr (VI) adsorption. Generally, this study provided a new idea for the Cr (VI) removal from aqueous solution using an efficient and inexpensive adsorbent with maximum adsorption capacity of 76.34 mg/g. |
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| ISSN: | 1687-8078 |