Study of UiO-66 and UiO-66 Modulated with Acetic Acid as the Adsorbent for Eriochrome Black T Dye

  • M. Anugrah Rizky Pambudi Department of Chemistry, Faculty of Sciences and Data Analytics, Institut Teknologi Sepuluh Nopember (ITS) Jl. Arief Rahman Hakim, Surabaya, Indonesia
  • Nanda Prayogo Department of Chemistry, Faculty of Sciences and Data Analytics, Institut Teknologi Sepuluh Nopember (ITS) Jl. Arief Rahman Hakim, Surabaya, Indonesia
  • Muhammad Nadjib Department of Chemistry, Faculty of Sciences and Data Analytics, Institut Teknologi Sepuluh Nopember (ITS) Jl. Arief Rahman Hakim, Surabaya, Indonesia
  • Ratna Ediati Department of Chemistry, Faculty of Sciences and Data Analytics, Institut Teknologi Sepuluh Nopember (ITS) Jl. Arief Rahman Hakim, Surabaya, Indonesia
Keywords: Metal-Organic Framework (MOF), UiO-66, Eriochrome Black T (EBT), Adsorption, Langmuir Isotherm.

Abstract

UiO-66, as one of the metal-organic framework (MOF) compounds, has been used to treat some anionic and cationic dye waste. In order to determine the adsorption selectivity decisively, the synthesis of UiO-66 and UiO-66 modulated with acetic acid had been carried out, along with their adsorption tests for Eriochrome Black T (EBT) dye solution. The synthesis was performed by utilizing a solvothermal method with the reaction mixtures of zirconium (IV) chloride (ZrCl4) and terephthalic acid (H2BDC) as a ligand heated at 120 oC for 24 hours. Both UiO-66 (without acetic acid) and acetic acid modulated UiO-66 were obtained as a white powder. Acetic acid as a modulator was added and being investigated for the adsorption capability compared to the normal UiO-66. This study showed that normal UiO-66 exhibited better adsorption than acetic acid modulated UiO-66 with a mmol ratio of acetic acid:ligand varied from 50:1, 100:1, and 150:1. Acetic acid modulated UiO-66 with a mmol ratio of 50 exhibited the best crystallinity as observed by using x-ray diffraction. It can be concluded that the adsorption of EBT using normal and acetic acid modulated UiO-66 obeyed the pseudo-second-order reaction rate law as well as the Langmuir adsorption isotherm pattern.

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Published
2021-01-28
How to Cite
(1)
Pambudi, M. A.; Prayogo, N.; Nadjib, M.; Ediati, R. Study of UiO-66 and UiO-66 Modulated With Acetic Acid As the Adsorbent for Eriochrome Black T Dye. Indo. J. Chem. Res. 2021, 8, 183-193.
Section
Research articles