Adsorption of methylene blue on nano-crystal cellulose of oil palm trunk: kinetic and thermodynamic studies

Mega, Mustikaningrum and Rochim, Bakti Cahyono and Ahmad, Tawfiequrrahman Yuliansyah (2022) Adsorption of methylene blue on nano-crystal cellulose of oil palm trunk: kinetic and thermodynamic studies. Indonesian Journal of Chemistry (Indones. J. Chem), 22 (4): 7. pp. 953-964. ISSN 1411-9420 e_ISSN: 2460-1578

[thumbnail of Jurnal_Mega Mustikaningrum_Universitas Muhammadiyah Gresik_2022.pdf]
Jurnal_Mega Mustikaningrum_Universitas Muhammadiyah Gresik_2022.pdf - Published Version
Available under License Creative Commons Attribution Non-commercial No Derivatives.

Download (1MB) | Preview


The adsorption kinetic study of methylene blue using nano-crystal cellulose made from oil palm trunk was investigated. A sample of 0.08 g of nano-crystal cellulose was used to adsorb 300 mL of methylene blue solution, with a varied stirring speed at 100, 200, and 300 rpm. Meanwhile, the concentration of methylene blue was varied at 1, 2, and 3 mg/L. The experimental results showed that the range of adsorption rate constant was 0.0007–0.0130 m/min. For the thermodynamic study, adsorption temperature was varied at 303, 308, 313, and 318 K. The adsorption capacity values for such temperatures were 10.3389, 10.3802, 10.3614, and 10.3464 mg/g, respectively. It was found that ΔH° value of 0.00742 kJ/mol, ΔS° of 0.7758 kJ/mol K and ΔG° value of −242.81 kJ/mol. Based on the curve-fitting using the Henry, Langmuir, and Freundlich isotherm models, this adsorption tended to the Langmuir isotherm model, where the adsorption formed a monolayer covering the surface of the adsorbent. It was also found that the Langmuir affinity constant (KL) value was 4.560 L/mg, and the maximum adsorption capacity (qm) was 8.590 mg/g.

Item Type: Article
Uncontrolled Keywords: Nano-crystal cellulose, Methylene blue, Adsorption, Oil palm trunk
Subjects: Chemistry > Analytical Chemistry
Chemistry > Industrial Chemistry & Chemical Process Engineering
Depositing User: Djaenudin djae Mohamad
Date Deposited: 11 May 2023 06:35
Last Modified: 11 May 2023 06:35

Actions (login required)

View Item
View Item