Adsorption of methyl orange, acid chrome blue K, and Congo red dyes on MIL-101-NH2 adsorbent: Analytical interpretation via advanced model | Zendy

Fatma Aouaini | Zendy; Nadia Bouaziz | Zendy; Noura Khemiri | Zendy; Haifa Alyoussef | Zendy; Samia Nasr | Zendy; Abdelmottaleb Ben Lamine | Zendy

Open Access

Adsorption of methyl orange, acid chrome blue K, and Congo red dyes on MIL-101-NH2 adsorbent: Analytical interpretation via advanced model

Author(s) -

Fatma Aouaini,

Nadia Bouaziz,

Noura Khemiri,

Haifa Alyoussef,

Samia Nasr,

Abdelmottaleb Ben Lamine

Publication year - 2022

Publication title -

aip advances

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.421

H-Index - 58

ISSN - 2158-3226

DOI - 10.1063/5.0083291

Subject(s) - adsorption , congo red , physisorption , methyl orange , materials science , methyl red , orange (colour) , organic dye , methyl blue , nuclear chemistry , chemistry , chemical engineering , organic chemistry , catalysis , photocatalysis , food science , engineering

A synthesized MIL-101-NH 2 has been used as an adsorbent to analyze Congo red (CR), methyl orange (MO), and acid chrome blue K (AC) dye adsorption phenomena. This investigation, based on statistical physics treatment, applied the double layer model with two energies to understand dye adsorption on three samples, namely, MIL-101-NH 2 -1, MIL-101-NH 2 -2, and MIL-101-NH 2 -3, at T = 298 K. Modeling results indicated that dye adsorption occurred via a mixed adsorption orientation for CR and MO dyes and a non-parallel orientation for AC dye on the MIL-101-NH 2 surface. Dye uptake quantities varied from 2534.4 to 3440 mg/g for CR dye, 240.4 to 490.8 mg/g for MO dye, and 277 to 293 mg/g for AC dye. Thus, the highest adsorption amount appeared in the case of CR dye. Interpretation of the calculated energies showed that adsorption of the dyes on MIL-101-NH 2 is a physisorption phenomenon, which could be controlled through energetic parameters obtained via numerical findings using the statistical double layer model. Moreover, the expression of the model is exploited to investigate the thermodynamic functions, such as internal energy.

The content you want is available to Zendy users.

Already have an account? Click here to sign in.

Having issues? You can contact us here

Accelerating Research