Banana Peel Activated Carbon in Removal of Dyes and Metals Ion in Textile Industrial Waste

Okky Putri Prastuti^1,a*, Eka Lutfi Septiani^1,b, Yuni Kurniati^1,c, Widiyastuti^2,d, and Heru Setyawan^2,e

¹Universitas Internasional Semen Indonesia, Jl. Veteran (Kompleks PT. Semen Indonesia) Gresik 61122, Indonesia

²Sepuluh Nopember Institute of Technology, Kampus ITS Sukolilo, Surabaya 60111, Indonesia

^a*okky.prastuti@uisi.ac.id, ^beka.septiani@uisi.ac.id, ^cyuni.kurniati@uisi.ac.id, ^dwidiyastuti@chem-eng.its.ac.id, ^esheru@chem-eng.its.ac.id,

Abstract

Textile waste is produced in the starch process, a starch removal process, coloring, and printing. The use of banana peel (Musa Paradisiaca) was an alternative that was being developed as an absorbent to remove the color content and metal ions in textile waste. The purpose of this study was to analyze the workings and effectiveness of heavy metal adsorption and textile dyes with banana peel waste. Banana peel particles that were ready to be used as adsorbents were characterized using Scanning Electron Microscopy (SEM) to obtain particle morphology. Absorbance curve of Cu2+ dan Cr6+ can be obtained using spectrophotometric UV-Vis analysis with a wavelength of 635 nm for copper (Cu) and 469 nm for chromium (Cr). The activated carbon of banana peel was applied to 50 ml industrial waste solution and observed changes in absorbance for 120 minutes. The activated carbon was directly in contact with the solution of metal ions but the adsorption power was still not seen effectively so that the Atomic Absorption Spectroscopy (AAS) test was performed. The results of AAS analysis, namely activated carbon can reduce copper and chromium ion content respectively by 55.5% and 61%. If this activated carbon was used as an adsorbent for dyes in textile waste, the average absorption capacity of dye ion was 12.21% during the contact time of adsorption 120 minutes.

Keywords: activated carbon, adsorption, banana peel, spectroscopy, water

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