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All Journal JURNAL KIMIA SAINTEK DAN PENDIDIKAN Jurna Beta Kimia
Gusti, Herdi Idriawien
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Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Education Materials Science & Nanotechnology

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POTENSI KARBON AKTIF KULIT NANAS (Ananas comosus) SEBAGAI ADSORBEN LOGAM BERAT Pb DENGAN PERBANDINGAN AKTIVATOR NaOH DAN HCl Rusli, Rusli; Fatimah, Siti; Gusti, Herdi Idriawien; Jumrah, Elfira
JURNAL KIMIA SAINTEK DAN PENDIDIKAN Vol. 9 No. 1 (2025): JURNAL KIMIA SAINTEK DAN PENDIDIKAN
Publisher : Program Studi Kimia - Universitas Sari Mutiara Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51544/kimia.v9i1.6078

Abstract

The increasing need for activated carbon with biological raw materials in Indonesia is very rapid, supported by technological and industrial advances. Activated carbon is quite important in the industrial world which is used as an adsorbent. This research uses pineapple skin as a raw material for making activated carbon. The purpose of this study was to determine the potential and adsorption capacity of activated carbon from pineapple peels. Activated carbon is prepared by carbonating pineapple skin at 600oC for 5 minutes and then activated with HCl and NaOH activators by soaking for 24 hours. Furthermore, the absorption of Pb was tested using AAS to determine the absorption potential of pineapple peel activated carbon for heavy metalsThe test results showed that activated carbon using HCl had a yield of 9.2%, moisture content of 12.68%, and ash content of 35.88%. Meanwhile, activated carbon using NaOH had a yield of 9.5%, moisture content of 32.38%, and ash content of 21.03%. The adsorption capacities were 0.0045 mg/g (HCl) and 0.0053 mg/g (NaOH). These results indicate that pineapple peel has strong potential as a raw material for activated carbon in heavy metal adsorption, in accordance with SNI 06-3730-1995.
Characterization of Pineapple Peel Activated Carbon (Ananas comosus) as an Iron (Fe) Heavy Metal Adsorbent with NaOH and NH4OH Activators Hasra, Putri Ramadani; Yangti, Ilda ilda; Gusti, Herdi Idriawien; Karneng, Syahdam
Jurnal Beta Kimia Vol 5 No 2 (2025): Volume 5 Number 2, November 2025
Publisher : Universitas Nusa Cendana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35508/jbk.v5i2.23248

Abstract

The purpose of this study was to investigate the effect of strong and weak base activators on the adsorption properties of activated carbon derived from pineapple peel waste. Activated carbon prepared with NaOH and NH₄OH activators exhibited different physical characteristics; NaOH-activated carbon appeared darker and had a rougher texture compared to NH₄OH-activated carbon. The NaOH-activated carbon contained a moisture content of 8.2%, an ash content of 2.22%, and an iodine adsorption capacity of 393.75%. In contrast, the NH₄OH-activated carbon contained a moisture content of 9.9%, an ash content of 2.68%, and an iodine adsorption capacity of 382.41%. Atomic absorption spectrophotometry (AAS) analysis showed an adsorption capacity of 0.17 mg/L for NaOH-activated carbon and 0.18 mg/L for NH₄OH-activated carbon. Fourier Transform Infrared (FTIR) spectroscopy revealed that NaOH-activated carbon contained O–H (hydroxyl), C=C (aromatic), C–H (alkane), C–O (alcohol), and C=H (alkene) functional groups, while NH₄OH-activated carbon exhibited O–H (hydroxyl), C=C (aromatic), C–H (alkane), and C=H (alkene) groups.
Co-Authors Elfira Jumrah Hasra, Putri Ramadani Karneng, Syahdam R. Rusli Siti Fatimah Yangti, Ilda ilda