# Characterization and application of mangosteen peel activated carbon for ammonia gas removal
> Hanami Z.A.

URL kanonis: https://discover.unhas.ac.id/publications/characterization-and-application-of-mangosteen-peel-activated-carbon-for-ammonia
Jurnal / Konferensi: Environment and Natural Resources Journal
Tahun terbit: 2021
DOI: https://doi.org/10.32526/ennrj/19/2020298
ISSN: 16865456
Kuartil SJR: Q3
Citations: 5

## Authors
- Hanami Z.A.

## Abstract
Mangosteen peel can be used as an activated carbon precursor because of its high lignin content and hardness. In this study, mangosteen peel activated carbon (MP-AC) was prepared by a physical activation method using CO2 at 850°C. The Brunauer-Emmett-Teller (BET) analysis was used to assess the optimal activation time to identify the largest surface area. The properties of MP-AC were characterized by the SEM-EDS and FTIR analyses. The results showed that MP-AC obtained from the 120-minute activation time had the largest BET specific surface area of 588.41 m2/g and was selected as an adsorbent in the dynamic adsorption of ammonia gas. The values of moisture content, ash content, and iodine number of MP-AC were 6.07%, 9.8%, and 1153.69 mg/g, respectively. Breakthrough curve indicated that with lower inlet concentration and higher adsorbent mass, longer breakthrough time is reached. Equilibrium data was best fitted to the Langmuir isotherm, while the pseudo-first order kinetic model favorably described the adsorption kinetics. The results revealed a potential to utilize MP-AC as an adsorbent for ammonia gas removal with average NH3 adsorption capacity of 0.41 mg/g.

## Keywords
- Activated carbon
- Adsorption
- Langmuir adsorption model
- BET theory
- Specific surface area
- Ammonia
- Chemistry
- Iodine value
- Fourier transform infrared spectroscopy
- Nuclear chemistry
- Lignin
- Carbon fibers
- Materials science
- Chemical engineering
- Organic chemistry
- Composite number
- Catalysis
- Composite material
- Engineering

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Sumber: Discover Unhas — RIMS Universitas Hasanuddin.
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