Insertion of bentonite with Organometallic [Fe3O(OOC6H5)6(H2O)3(NO3).nH2O] as Adsorbent of Congo Red

International Conference on Chemistry and Material Science 2017

化学;材料科学

Said, Muhammad^1 ; Utami, Hasja Paluta^1 ; Hayati, Ferlina^1

Dept. of Chemistry, Faculty of Natural Science and Mathematics, Sriwijaya University, Indonesia^1

关键词: Adsorption capacities;    Adsorption energies;    Adsorption process;    Congo red;    Diffraction angle;    FT-IR characterization;    Organometallic compounds;    [Fe3O(OOC6H5)6 (H2O)3 (NO3)nH2O];   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/299/1/012086/pdf
DOI  :  10.1088/1757-899X/299/1/012086

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

The adsorption of Congo red using bentonite inserted organometallic has been investigated. The insertion bentonite was characterized using FT-IR Spectrophotometer, XRD and XRF analysis. The FT-IR characterization showed the higher intensity of peak wavenumber at 470.6 cm-1for Fe3O on the ratio 1:3. While the XRD characterization showed the shift of diffraction angle of 2θ was 5.2° and has a basal spacing of 16.8 Å. In the XRF characterization, the insertion process of organometallic occurred optimally with the percentage of metal oxide reached 71.75 %. The adsorption process of bentonite inserted organometallic compound [Fe3O(OOC6H5)6(H2O)3(NO3)•nH2O] showed the adsorption rate (k) is 0.050 min-1, the largest adsorption capacity (b) at 70°C is 4.48 mol/g, the largest adsorption energy at temperature 30°C which is 6.4 kJ/mol Organometallic compounds. The value of the enthalpy (ΔH) and entropy (ΔS) decreased with increasing concentrations of the Congo red. Effect of pH on the adsorption on at pH 3 shows the biggest of number Congo red absorbed is 19.52 mg/L for insertion of bentonite.