Author(s)

Baissassou Debina¹, Sakué Ngankam Eric¹, Daniel Fotio¹, Kamdem Tamo Arnaud², Dai-Yang Lemankreo¹, Abdoul Ntieche Rahman^3*

¹Department of Chemistry, Faculty of Science, University of Maroua, Maroua, Cameroon.
²Department of Chemistry, Faculty of Science Semlalia, University of Cady Ayyad, Marrakech, Morocco.
³Department of Chemistry, Higher Teachers’ Training College of Bertoua, University of Ngaoundéré, Yaounde, Cameroon.

This study is on the adsorption of indigo carmine dye by composite activated carbons prepared from banana pseudo stems and plastic waste. The activated carbons named TB₁P₁, TB₁P_1h and TB₂P₁ were obtained by pyrolysis at 700°C under steam of raw materials at different ratios (1:1 and 2:1). They were characterized by different techniques such as SEM/EDX, Raman Spectroscopy, FTIR, XRD, TGA/DTA and BET/BJH. Analyses indicate amorphous structures with specific surface areas of 424.37; 385.45 and 338.84 m²/g for TB₁P₁, TB₁P_1h and TB₂P₁ respectively. The study of the adsorption of indigo carmine dye by these adsorbents was carried out by varying parameters such as contact time, mass of adsorbent and initial concentration of the dye. The maximum retention is 94.71%, 86.18% and 84.17% for TB₁P₁, TB₁P_1h and TB₂P₁ respectively after 60 min of stirring, for a pH = 4.6 using 0.6 g of adsorbents. The adsorption of indigo carmine follows well, the Langmuir model, with the most suitable kinetics as pseudo second order.

Adsorption, Activated Carbon, Composite, Plastic Waste, Dye

Debina, B. , Eric, S. , Fotio, D. , Arnaud, K. , Lemankreo, D. and Rahman, A. (2020) Adsorption of Indigo Carmine Dye by Composite Activated Carbons Prepared from Plastic Waste (PET) and Banana Pseudo Stem. Journal of Materials Science and Chemical Engineering, 8, 39-55. doi: 10.4236/msce.2020.812004.