Adsorpsi Methyl Violet oleh Karbon Aktif dari Limbah Tempurung Kelapa dengan Aktivator ZnCl2 Menggunakan Pemanasan Gelombang Mikro

Widi Astuti, Anggelita Dwi Handayani, Diah Ayu Wulandari


Synthesis of activated carbon from coconut shell waste with ZnCl2 activation using microwave heating have been carried out. Coconut shell consists of 36.51% lignin, 33.61% cellulose and 19.27% hemicellulose which causes it can be used as a precursor in the synthesis of activated carbon. The activated carbon was further characterized using Scanning Electron Microscope (SEM), Fourier Transform Infrared Spectrophotometer (FTIR) and NOVA Gas Sorption Analyzer-Quantachrome and used for the adsorption of methyl violet in aqueous solution with variation of pH, contact time and concentration of solution. The result showed that the pore of activated carbon was larger than that of the char. The optimum adsorption occurred at pH 3 and the equilibrium time was reached after 180 minutes. The Langmuir equilibrium model was more appropriate than the Freundlich equilibrium model. While the kinetics model analyzed using pseudo first order, pseudo second order, internal diffusion and external diffusion indicated that the pseudo second order was most suitable for the adsorption of methyl violet by coconut shell activated carbon.


activated carbon, coconut shell, methyl violet, microwave, ZnCl2

Full Text:



Ahmed, M.J. (2016) Application of agricultural based activated carbons by microwave and conventional activations for basic dye adsorption: Review, Journal of Environmental Engineering, 3, 89-99.

Astuti, W. (2017) Adsorben Berbasis Abu Layang Batu Bara, Unnes Press., Semarang.

Astuti, W., dan Fatin, D.M. (2017) Adsorption of methyl violet dye by thermally modified ceiba pentandra sawdust, Jurnal Bahan Alam Terbarukan, 6 (2), 183-189.

Astuti, W., Sulistyaningsih, T., Maksiola, M. (2016) Chemically modified kapok sawdust as adsorbent of methyl violet dye from aqueous solution, Jurnal Teknologi, 78 (9), 35 – 42.

Astuti, W., Sulistyaningsih, T., Maksiola, M. (2017) Equilibrium and kinetics of adsorption of methyl violet from aqueous solutions using modified Ceiba pentandra sawdust,. Asian Journal of Chemistry, 29(1), 133-138.

Belaid, K.D., Kacha, S., Kameche, M., Derriche, Z. (2013) Adsorption kinetics of some textile dyes onto granular activated carbon, Journal of Environmental Engineering, 1, 496-50.

Brillas, E., Martinez-Huitle, C.A. (2014) Decontamination of wastewaters containing synthetic organic dyes by electrochemical methods. An updated review, Applied Catalysis B: Environmental, 166-167, 603–643.

Chafidz, A., Astuti, W., Augustia, V., Novira, D.T., Rofiah, N. (2018) Removal of methyl violet dye via adsorption using activated carbon prepared from Randu sawdust (Ceiba pentandra). IOP Conf. Series: Earth and Environmental Science, 167(012013), 1-6.

Dariani, R. S., Esmaeili, A., Mortezaali, A., Dehghanpour, S. (2016) Photocatalytic reaction and degradation of methylene blue on TiO2 nano sized particles, Optik - International Journal for Light and Electron Optics, 127(18), 7143-7154.

Huang, J.H., Zhou, C.F., Zeng, G.M., Li, X., Niu, J., Huang, H.J.,Shi, L.J., He, S.B. (2010) Micellar-enhanced ultrafiltration of methylene blue from dye wastewater via a polysulfone hollow fiber membrane, Journal of Membrane Science, 365(1-2), 138-144.

Kumar, P.S., Ramalingam, S., Senthamarai, C., Niranjanaa, M., Vijayalakshmi, P., Sivanesan, S. (2010) Adsorption of dye from aqueous solution by chashew nut shell: Studies on equilibrium isotherm, kinetics and thermodynamics of interactions. Desalination, 261, 52-60.

Mastalerz, M., Wei, L., Drobniak, A., Schimmelmann, A., Schieber, J. (2018), Responses of specific surface area and micro- and mesopore characteristics of shale and coal to heating at elevated hydrostatic and lithostatic pressures, International Journal of Coal Geology, 197, 20-30.

Pugersari, D., Syarief, A., Larasati, D. (2013) Eksperimen pengembangan produk fungsional bernilai komersial berbahan baku tempurung kelapa berusia muda dengan teknik pelunakan, ITB J. Vis. Art & Des, 5(1), 74-91.

Rahchamani,J., Mousavi, H.Z., Behzad, M. (2011) Adsorption of methyl violet from aqueous solution by polyacrylamide as an adsorbent: Isotherm and kinetic studies. Desalination, 267, 256-260.

Liou, T.H. (2010) Development of mesoporous structure and high adsorption capacity of biomass-based activated carbon by phosphoric acid And zinc chloride activation. Chemical Engineering Journal, 158, 129-142.

Zhang, J., Lee, K.H., Cui, L., Jeong, T. (2009) Degradation of methylene blue in aqueous solution by ozone-based processes, Journal of Industrial and Engineering Chemistry, 15(2), 185-189.


Article Metrics

Abstract view : 0 times
PDF - 0 times


  • There are currently no refbacks.

Copyright (c) 2018 Widi Astuti, Anggelita Dwi Handayani, Diah Ayu Wulandari

Creative Commons License
This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.


Jurusan Teknik Kimia Universitas Syiah Kuala, Jl. Tgk. Syech Abdur Rauf No.7, Kopelma Darussalam, Banda Aceh, INDONESIA



Nasrul Arahman, Prof. Dr. S.T., M.T.
Phone: +62813-6092-7917



Mirna Rahmah Lubis
Wahyu Rinaldi, ST, M.Sc.