Kinetics and Thermodynamics Interaction Between Bentonite Inserted Organometallic Compounds [Cr3O(OOCH)6(H2O)3](NO3) With Methylene Blue Dye In Aqueous Medium

International Conference on Chemistry and Material Science 2017

化学;材料科学

Mohadi, Risfidian^1 ; Purba, Radja Nardo^1 ; Rohendi, Dedi^1 ; Lesbani, Aldes^1,2

Department of Chemistry, Faculty of Mathematics and Natural Sciences, Sriwijaya University, Jl. Raya Palembang Prabumulih Km 32, Ogan Ilir, South Sumatera

30662, Indonesia^1

Integrated Research Laboratory, Graduate School, Sriwijaya University, Jl. Padang Selasa, Bukit Besar Palembang, South Sumatera

30139, Indonesia^2

关键词: Adsorption capacities;    Adsorption energies;    Adsorption rates;    Kinetics and thermodynamics;    Methylene Blue;    Methylene blue dye;    Organometallic compounds;    [Cr3O(OOCH)6(H2O)3] (NO3);   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/299/1/012082/pdf
DOI  :  10.1088/1757-899X/299/1/012082

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

Bentonite insertion was conducted with organometallic compound [Cr3O(OOCH)6(H2O)3](NO3)) and then tested its stability at various pH, then its interaction between bentonite inserted by organometallic compound [Cr3O(OOCH)6(H2O)3] with methylene blue dye. The interaction between organometallic compound [Cr3O(OOCH)6(H2O)3] with methylene blue showed an adsorption rate of 15.49 min-1at the concentration of methylene blue 25 mg/L. The adsorption capacity and adsorption energy (ΔE) were 2.74 mol/g and 5.58 kJ/mol, respectively, at temperature 70 °C where visible trends of enthalpy (ΔH°) and entropy (ΔS°) values decrease with increasing concentration of methylene blue.