Data on Characterization, Model, and Adsorption Rate of Banana Peel Activated Carbon (Musa Acuminata) for Adsorbents of Various Heavy Metals (Mn, Pb, Zn, Fe)

Published: 15 June 2021| Version 1 | DOI: 10.17632/mcjwgpp6zg.1
Contributor:
Khairiah Lubis

Description

This article contains data on the results of the adsorption test and characterization of banana peel-activated carbon for applied as an adsorbent to water contaminated with various heavy metals. Banana peel is a post-harvest waste that is quite abundant, so it is easy to get it. AAS (Atomic Absorption Spectroscopy) is used to investigate the heavy metal content in polluted water air. Various heavy metals are harmful to health, namely Mn, Fe, Zn, and Pb for concentrations (1,351; 1,210; 17,403; and 0,210 mg/l) exceeding the standard limits for clean water quality that are suitable for use for sanitation hygiene purposes. Banana peels made by milling process 12 hours and low-temperature carbonization method (473o K, 24 hours). Banana peel carbon samples were tested in polluted water and then re-examined using AAS. From the results of characterization using AAS obtained % adsorption, suitable adsorption model, and adsorption rate. Data for % adsorption on the four heavy metals were given with variations in adsorbent mass (0.5;1.0;1.5;2.0 grams), stirring speed (50;100;150;200;250 rpm), pH (4;5;6;7;8 ) and contact time (30;60;90;120;150 minutes). The adsorption model is the Langmuir model. The rate of adsorption using pseudo-first-order and pseudo-second-order. The morphology, material content, and crystal structure formed from the two samples, characterization was also carried out using SEM/EDS (Scanning Electron Microscope/Energy Dispersive X-Ray Spectroscopy) and XRD (X-Ray Diffraction). BET-BJH (Brunaurer, Emmet, and Teller) – (Barret, Joyner, and Halenda) to investigate the surface area, pore size, and isotherm type. These data indicate that banana peel carbon is quite the potential to be used as an adsorbent for heavy metals (Mn, Pb, Zn, Fe).

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Steps to reproduce

First, dry the skin with a preparation technique to remove dirt on the banana peel and reduce the moisture content. Puree with a mortar and pestle, then sieve with a sieve, then smooth again with a blender. After that, put the banana peel powder into High Energy Milling (HEM). The milling process for 12 hours given a pause of 30 minutes for each 90-minute cycle. Then carbonized at 473o K for 24 hours. The banana peel-activated carbon is chemically activated using a 25% concentrated HCl solution. The banana peel-activated carbon stirred for 2 hours. Then it put the sample into the oven at 80o C for 4 hours.