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All Journal JURNAL KIMIA SAINS DAN APLIKASI Chemica: Jurnal Ilmiah Kimia dan Pendidikan Kimia
Nicha, Walny
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Chemical Engineering, Chemistry & Bioengineering Chemistry Education Engineering

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Karbon Aktif Tempurung Kelapa Sawit (Elaeis Guineensis) sebagai Adsorben Remazol Brilliant Violet 5R Sistem Kontinyu Nicha, Walny; M, Mohammad Wijaya; Hasri, Hasri
Chemica: Jurnal Ilmiah Kimia dan Pendidikan Kimia Vol 26, No 1 (2025): CHEMICA
Publisher : Jurusan Kimia FMIPA UNM

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35580/chemica.v26i1.71500

Abstract

Penelitian ini bertujuan untuk mengetahui karakteristik karbon aktif tempurung kelapa sawit teraktivasi H3PO4 10%, mengetahui kapasitas adsorpsi dan efisiensi adsorpsi sistem kontinyu pada adsorpsi zat warna Remazol Brilliant Blue-5R (RBV5R). Penelitian ini meliputi preparasi tempurung kelapa sawit, karbonisasi, aktivasi karbon, uji karakteristik, dan adsorpsi zat warna RBV5R secara sistem kontinyu. Karakteristik karbon aktif diperoleh kadar air sebesar 7,58%, kadar abu 7,86% dan kadar zat terbang 94,12%. Kadar air dan kadar abu yang dihasilkan telah memenuhi SNI 06-3730-1995 sedangkan kadar zat terbang belum memenuhi SNI 06-3730-1995. Adsorpsi zat warna RBV5R secara sistem kontinyu memiliki waktu kontak optimum 80 menit dengan kapasitas adsorpsi sebesar 2,0460 mg/g dan efisiensi adsorpsi sebesar 27,2797%.This study aims to determine the characteristics of activated palm oil carbon activated with H3PO4 10%, determine the adsorption capacity and adsorption efficiency of the continuous system on the adsorption of Remazol Brilliant Blue-5R (RBV5R) dye. This research includes preparation palm kernel shell, carbonization, carbon activation, characteristic test, and adsorption of RBV5R dye in a continuous system. The characteristics of activated carbon obtained moisture content of 7.58%, ash content of 7.86% and fly substance content of 94.12%. The moisture content and ash content produced have met SNI 06-3730-1995 while the fly content has not met SNI 06-3730-1995. Adsorption of RBV5R dye in a continuous system has an optimum contact time of 80 minutes with an adsorption capacity of 2.0460 mg/g and an adsorption efficiency of 27.2797%.
Synthesis and Characterization of Palm Shell Activated Carbon for Adsorption of Remazol Brilliant Violet 5R Nicha, Walny; M., Mohammad Wijaya; Hasri, Hasri
Jurnal Kimia Sains dan Aplikasi Vol 28, No 8 (2025): Volume 28 Issue 8 Year 2025
Publisher : Chemistry Department, Faculty of Sciences and Mathematics, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jksa.28.8.405-415

Abstract

This study aims to characterize activated carbon derived from palm shells treated with 10% H3PO4 and evaluate its effectiveness as an adsorbent for removing Remazol Brilliant Violet 5R (RBV5R) dye. The adsorption capacity of the activated carbon was assessed based on adsorption efficiency using a batch adsorption method. The experimental process included preparation, carbonization, chemical activation, characterization, and adsorption studies conducted using a continuous system. Scanning Electron Microscopy (SEM) analysis of the unactivated carbon revealed that the pores were partially obstructed by residual carbonized substances, resulting in narrower pore structures. In contrast, activation with 10% H3PO4 produced larger and cleaner pores due to the effective removal of surface residues. Fourier-transform infrared spectroscopy (FTIR) analysis of the raw carbon identified functional groups such as O–H, C=C, and C– H, while the activated carbon exhibited characteristic peaks corresponding to C=O, P–O, and P–OH groups. Surface area analysis indicated a significant increase from 2202.532 m2/g for the unactivated carbon to 5137.431 m2/g after activation. Adsorption studies demonstrated that both adsorbents achieved optimal dye removal performance at pH 3 and a contact time of 20 minutes. The unactivated carbon achieved an adsorption efficiency of 84.618% and an adsorption capacity of 6.346 mg/g, while the activated carbon exhibited identical efficiency and capacity values.
Co-Authors Hasri Hasri M, Mohammad Wijaya M., Mohammad Wijaya