Chitosan-ZnO Composite for Removal of Methylene Blue

Desnelli Desnelli, Leidya Yulinda, David Fernando, Fatma Fatma, Ady Mara


This study aims to determine the effectiveness and increase in absorption of the chitosan-ZnO composite in the process of removing methylene blue when using the photodegradation method with the help of a UV lamp. Chitosan was synthesized from shrimp shell waste composite with metal oxide ZnO. The results of the characterization using XRD obtained the diffraction peak for chitosan at an angle of 2θ, namely 19.85°; 29.43°; 34.76° and chitosan-ZnO composite at an angle of 20.18°; 28.93°; 33.57° The SEM-EDX characterization shows that chitosan-ZnO has small, light-colored grains and more gaps and contains elements of chitosan and Zn. In the FTIR characterization, there was a decrease in intensity at a peak of around 3360 cm-1 which was caused by the chitosan-ZnO composite producing OH groups which reacted with methylene blue dye. In testing the effect of contact time using a UV lamp, there was an increase in the percentage of degraded methylene blue compared to without using a UV lamp. The maximum contact time is obtained at 60 minutes. While testing the effect of methylene blue dye concentration, the maximum absorption concentration was 45 ppm at 60 minutes of contact time. The adsorption capacity of the composite against methylene blue dye without UV light was 18.91 mg/g while using a UV lamp it increased to 20.145 mg/g. Based on this research, the chitosan/ZnO composite can be used quite well as a methylene blue dye remover.

Keywords: Chitosan, Chitosan-ZnO, Photodegradation, Adsorption, Methylene blue.

Full Text:

Full text PDF


. Dompeipen, E.J., Kaimudin, M. dan Dewa, R.P. 2016. Isolasi Kitin dan Kitosan dari Limbah Kulit Udang. Majalah BIAM. 12 (1) : 32 - 38.

. Rathke, T.D., & S.M., Hudson, 1994, Review of Chitin and Chitosan as Fiber and Film Formers. Journal of Macromolecular Science. 34 (3), 375-473.

. Fatoni, A., Hilma, H., Rasyad, A. A., Novriyanti, S., Hidayati, N. 2020. Biosintesis ZnO Nanopartikel dari Ekstrak Air Daun Jambu Biji (Psidium guajava L) dan Ion Zn2+ serta Interaksinya dengan Kitosan sebagai Antibakteri Escherichia coli. Jurnal Sains dan Farmasi Klinis. 7 (2). 151-157.

. M. Vakili, M. Rafatullah, B. Salamatinia et al., “Application of chitosan and its derivatives as adsorbents for dye removal from water and wastewater: a review,” Carbohydrate Polymers, vol. 113, pp. 115–130, 2014.

. J. M. N. dos Santos, C. R. Pereira, L. A. A. Pinto et al., “Synthesis of a novel CoFe2O4/chitosan magnetic composite for fast adsorption of indigotine blue dye,” Carbohydrate Polymers, vol. 217, pp. 6–14, 2019

. Senthilkumar, P.; Yaswant, G.; Kavitha, S.; Chandramohan, E.; Kowsalya, G.; Vijay, R.; Sudhagar, B.; Kumar, D.S.R.S. Preparation and characterization of hybrid chitosan-silver nanoparticles (Chi-Ag NPs); A potential antibacterial agent. Int. J. Biol. Macromol. 2019, 141, 290–297.

. Rani, M.; Rachna; Shanker, U. Metal oxide-chitosan based nanocomposites for efficient degradation of carcinogenic PAHs. J. Environ. Chem. Eng. 2020, 8, 103810.

. Gancheva, M., Velichkova., M.M., Atanasova, G., Kovacheva, D., and Cukeva., R. 2016. Design and Photocatalytic Activity of Nanosized Zinc Oxides. Applied Surface Science. Bulgarian Academy of Sciences : Bulgaria.

. Li, Y., Zhou, Y., Wang, Z., Cai, R., Yue T., and Cui, L. 2021, Preparation and Characterization of Chitosan–Nano-ZnO Composite Films for Preservation of Cherry Tomatoe. Foods , 10, 3135

. Xu, H., Hao, Z., Feng, W., Wang, T. And Li, Y. 2021. Mechanism of Photodegradation of Organic Pollutants in Seawater by TiO2-Based Photocatalysts and Improvement in Their Performance. ACS Omega, 6, 45, 30698–30707

. Dhanavel, S., Nivetha, E. A. K., Narayanan, V., and Stephen, A. 2014. Photocatalytic Activity of Chitosan/ZnO Nanocomposite for Degrading Methylene Blue. International Journal of ChamTech Research. 6 (3) : 1881 – 1882.

. AbdElhady, M.M., 2012, Preparation, Characterization of Chitosan/ZnO Nanoparticles for Imp arting Antimicroial and UV Protection to Cotton Fabric, International Journal of Carbohydrate Composite, Vol. 2012

. Dini. E. W. P. dan Wardhani, S. 2014. Degradasi Methylene Blue Menggunakan Fotokatalis ZnO-Zeolit. Journal Chemistry Program. 7(1):29-33.

. Lin, X., Yang. A., Huang, G., Zhou, X., Zhai, Y., Chen, X., and McBean, E. 2019. Treatment of Aquaculture Wastewater Through Chitin/ZnO Composite Photocatalyst. Article Journal Water. 11 (310) : (1-19).

. Zango, Z.U., Dennis, J.O., Aljameel A. I., Usman. F., Mohammed Ali , M.K., Abdulkadir, B.A., Algessair, Aldaghri O. A. and Ibnaouf, K.H.2022. Effective Removal of Methylene Blue from Simulated Wastewater Using ZnO-Chitosan Nanocomposites: Optimization, Kinetics, and Isotherm Studies. Molecules, 27, 4746.



  • There are currently no refbacks.


Editorial Office:

Department of Chemistry, Faculty of Mathematics and Natural Sciences Universitas Sriwijaya
Jl. Palembang-Prabumulih Km.35 Indralaya Ogan Ilir Sumatera Selatan 30662



Creative Commons License
IJFAC by Department of Chemistry Sriwijaya University is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License