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Journal : Journal of Engineering and Technological Sciences

Comparative Study on Magnetic Activated Carbon Derived from Delignified and Non-delignified Palm Kernel Shell: Synthesis, Characterization, and Methylene Blue Adsorption Analysis Waluyo, Joko; Nabila, Zahrani Putri; Putra, Ariadi Indra; Purba, Ibnu Tryansar; Izzulhaq, Muhammad Ghozy; Kurnia, Irwan; Septian, Ardie; Ernawati, Lusi
Journal of Engineering and Technological Sciences Vol. 57 No. 4 (2025): Vol. 57 No. 4 (2025): August
Publisher : Directorate for Research and Community Services, Institut Teknologi Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5614/j.eng.technol.sci.2025.57.4.10

Abstract

Indonesia is the global leader in palm oil production, but it deals with significant challenges in managing palm oil mill waste, particularly palm kernel shells (PKS). This study investigated palm kernel shell (PKS) as a precursor for synthesizing magnetic activated carbon (MAC) to enhance its performance as an adsorbent for liquid waste treatment.  The precursor was delignified using alkali liquor and magnetized by incorporating Fe²⁺ and Fe³⁺ ions, followed by chemical activation (ZnCl₂) through an intermediate pyrolysis process. The performances of delignified and non-delignified MAC (DMAC and NDMAC) were evaluated through methylene blue adsorption tests (25–45 mg/L), focusing on adsorption capacity, dye removal efficiency, as well as isotherm and kinetic analysis. DMAC demonstrated a larger surface area, leading to enhanced adsorption performance. Morphological analysis revealed that delignification had a positive influence on the pore structure and size, resulting in a more uniform distribution. DMAC exhibited an adsorption capacity 16.3% higher (35.3 mg/g) in the equilibrium phase and 16.6% higher at maximum adsorption capacity (50.25 mg/g) according to the Langmuir isotherm. Furthermore, the inclusion of iron ions (Fe2+/Fe3+) promoted pore expansion and formation in the precursor material. The study found the Langmuir isotherm model (R² = 0.999) to be the best fit for methylene blue adsorption, while the pseudo-second-order kinetic model (R² = 0.9958) demonstrated an excellent fit for adsorption kinetics. The findings confirm that DMAC and NDMAC derived from PKS are effective for methylene blue dye adsorption, technically.
Co-Authors Abdul Karim Zulkarnain Abdul Wahid Abil Fida Siskayanti Agus Imam Sonhaji Agustinus Winarno Akhmad F. Alhikami Akif Mahrus Ali Allam K, Muhammad Amalia Febryane Adhani Mazaya Anifah, Eka Masrifatus Anis Kristiani, Anis Ari Ariangga Orranius Putra Patarru Ari Diana Susanti, Ari Diana Arief Budiman Ariyadi, Hifni Mukhtar Bakar, Syafriyudin Abu Bambang Eko Afiatno Bambang Purwono Basuki, Rio Basworo, Agung Tri Bikorin Bikorin Dahlan, Irvan Damayanthy, Ramanda Ayu Damianus Mario Ricky Fernando Damianus Mario Ricky Fernando Daroini, Moch. Fauzun Deny Ratna Yuniartha Dinda Safitri Ramadhani Dodik Prakoso Eko Hery Suwandojo Dodik Prakoso Eko Hery Suwandojo Dwi Siswanta Edi Iskandar, Edi Edy Prayitno Eko Haryanto Eko Haryanto Ely Afridiana Kuncoro Ernawati, Kadek Lusi Fajar Y. Prabowo Ferhadius Endi Ferriawan Yudhanto Ganjar Andaka Gunawan Nugroho Hadi Saputra Hana Himatul ‘Aliyah Haris Puspito Buwono Hartono, Moh Hasan Albana Rhomadhon Hasanah, Rafiatul Hayatullah, Wahyu Herry Purwanti, Noordiana Herry, Noordiana Heru S. B. Rochardjo Hotlan Samosir Hudiyo Firmanto, Hudiyo I Ketut Mahardika Ibnu Singgih Pranoto Ikbar, Royhan Indah Retuwati Ramadhana Izzulhaq, Muhammad Ghozy Jenni Prasetiyo Johan Syafri Mahathir Ahmad Jumina Jumina Jussac Maulana Masjhoer Kamalia Fikri Kholiq Fadillah Amriansyah Kosmar Marojahan Damanik Kurnia, Irwan Kuswati Kuswati Lestari, Nidi Lestary, Septy Luthfiana Nurul Hidayati, Luthfiana Nurul Machida, Masato Mahda Mega Andyka Hieguyta Marausna, Gaguk Mardiana, Alif Margono Margono Michael Seen Mochammad Iqbal Mohammad Imam Farisi Mohammad Wildan Habibi, Mohammad Wildan Muhammad Farhan Abrar Muhammad Ibrahim Hanif Muhammad Kusumawan Herliansyah Muhammad Sholeh MUHAMMAD SHOLEH Muhammad Yusuf Muslim, Ilham Taufik Musyarofah Musyarofah, Musyarofah Nabila, Zahrani Putri Ndaru Pratama, Nico Nidia Lestari Noordiana Herry Purwanti Norman, Hafiz Nugroho Dewayanto Nur Aini Masruroh Nur Mayke Eka Normasari Nur Wahyudi Paryanto Paryanto Pazli, Pazli Prabang Setyono Pramudya Dwi Aristya Putra Pranolo, Sunu Herwi Purba, Ibnu Tryansar Purmanna, Astrino Putra, Ariadi Indra Putri, Rizqi Wulandari Putro, Firman Asto Qadarusman, Muhammad Luqman Rachmawati, Rr Yuliana Rahmat Bayu Raziq, Abdur Reza, Mutia Ridho Bayuaji Ridho Hantoro Rofika Rofika, Rofika Rony Arjuna Rosalinda, Julitha D Rosalinda, Julitha Dwi Saiful Huda Samuel Kristiyana Sapawe, Norzahir Sembodo, Bregas Siswahjono Tatag Septian, Ardie Setyowati Rahayu, Suparni Sidiq, Muhammad Fadel Simarmata, Henni Mariani Slamet Hariyadi Su Dar mono Subchan, Wahju Sudarmono Sudarmono Sugiyanto - Sugiyanto Sugiyanto Sunu Herwi Pranolo Suparni Setyowati Rahayu Sutrisno S Suwanto Raharjo Syafriyudin Syafryudin Tiurlina Siregar Totok R. Biyanto TRI ACHMADI Tri Haryanto Triyanto, Heru Agus Umi Fadilah, Umi Wahyu Wilopo Wahyu Wilopo Wicaksana, Hangga Yayuk Fatmawati, Yayuk Yehezkiel Steven Kurniawan Yonathan Ito Yudha, Venditias Yuli Pratiwi Yuli Pratiwi Yulinar Pramesti Cahyani Zaid Haidar Khairy Zainal Abdi