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All Journal CHEMISTRY PROGRESS Jurnal Natur Indonesia Techno: Jurnal Penelitian KOVALEN: Jurnal Riset Kimia IJFAC (Indonesian Journal of Fundamental and Applied Chemistry) Indonesia Chimica Acta Panrita Abdi - Jurnal Pengabdian pada Masyarakat Jurnal Progres Kimia Sains Al-Kimia Indonesian Journal of Chemistry Jurnal Ilmu Alam dan Lingkungan Chemistry Indonesian Journal of Chemical Research Fullerene Journal of Chemistry Indobiosains Automotive Experiences Jurnal Pengabdian Papua Makara Journal of Science INDONESIAN JOURNAL OF URBAN AND ENVIRONMENTAL TECHNOLOGY Journal of Community Health Provision Molekul: Jurnal Ilmiah Kimia Rafflesia Journal of Natural and Applied Sciences (RJNAS)
Paulina Taba
Department Of Chemistry, Faculty Of Mathematics And Natural Sciences, Universitas Hasanuddin, Jl. Perintis Kemerdekaan Km 10, Tamalanrea, Makassar, 90245
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Journal : Makara Journal of Science

 1 
Adsorption of Cu(II) Ions from Aqueous Solutions using a Magnetite Biochar Composite Material Ta'bi, Widi Aprilia; Taba, Paulina; Wahab, Abdul Wahid; Gappa, Maming; Zakir, Muhammad; Permatasari, Nur Umriani
Makara Journal of Science Vol. 29, No. 3
Publisher : UI Scholars Hub

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Abstract

Water contamination from heavy metals, such as Cu(II) ions, poses severe threats to human health and the environment. This necessitates the development of efficient and eco-friendly treatment methods. In this study, a magnetite–biochar composite (MBC) was developed as an effective adsorbent for reducing Cu(II) ions from liquid waste. Biochar was produced through the pyrolysis of water hyacinth at 500 °C, while magnetite was synthesized using FeSO₄·7H₂O and FeCl₃·6H₂O with molar ratio of 1:2. The MBC was formed using a co-precipitation method and characterized by Fourier transform Infrared (FTIR) spectroscopy, X-ray diffraction (XRD), Brunauer–Emmett–Teller, and vibration sample magnetometer instruments. FTIR analysis confirmed the presence of Fe–O bonds, and XRD detected Fe₃O₄ peaks, confirming the successful integration of magnetite into the composite. The MBC exhibited a surface area of 72.54 m²/g and a saturation magnetization of 19.10 emu/g. Optimal Cu(II) ion adsorption occurred at pH 6 and a contact time of 60 min. Adsorption kinetics followed the pseudo-second-order model, and isothermal analysis aligned with the Sips model, indicating an adsorption capacity of 75.73 mg/g. These results demonstrate MBC’s excellent potential as a sustainable and effective adsorbent for treating Cu(II)-contaminated wastewater, offering an environmentally friendly solution to heavy metal pollution.
Co-Authors Abd. Wahid Wahab Abdalrazaq, Eid Abdul Karim Abdul Karim Abdul Wahid Wahab Abdul Wahid Wahab Abubakar, Andi Nur Fitriani Ahmad Fudhail  Majid Ahmad Zaini Ahyar Ahmad Alfian Noor Alfian Noor Amin, Ida Ifdaliah Andi Arwita Gau Andi Muhammad Anshar Andi Suciati Andi Yanti Puspita Sari Anita Anita Arfah, Rugaiyah A. Arfiani Nur Astuti, Emmi Azis, Hijrah A. Burhanuddinnur, Muhammad Djabal Nur Basir Djasmawati Mahmud Emma Suryati Fadliah, Fadliah Fatahu, Fatahu Fausan Sullahi Firdaus Firdaus Firdaus Firdaus Firdaus, Firdaus Gappa, Maming Ghanima Yasmaniar Graine Moran Harningsih Karim Harningsih Karim Hasnah Natsir Hasnah Natsir Hasri Hasri Hazirin Zubair Hazirin Zubair, Hazirin Husla, Ridha I Wayan Sutapa Indah Raya Indah Raya Indrawati Patabang Irfandi, Rizal Jarnuzi Gunlazuardi Kasturiasih, Ni Putu Khairunnur, Siti Kollur, Shivaa Prasad Kolo, La La Kalamu, La Yusran La Kolo La Kolo Lestari, Novi Malimongan M Maming Maming Gaffar, Maming Maming Maming Miftahul Jannah Miftahul Jannah Misriyani Misriyani Misriyani Misriyani Muh. Bachri Amran Muhammad Burhannudinnur Muhammad Qaddafi Muhammad Zakir Muhammad Zakir Munadi, Rachmin Musa, Bulkis Nunuk Hariani Soekamto Nunuk Soekamto Nur Afni Nur Haedar NURAENI, ANDI Nuritasari Azis Nurmala Sari Nursiah La Nafie Nursiah La Nafie Nursiah La Nafie Nursiah La Nafie Nursiah La Nafie Parmitha, Nadya Yuli Permatasari, Nur Umriani Prastawa Budi Prastawa Budi Putri, Tri Widayati Ramadani, Ananda Rapi, Prayiska Mariana Ridwan, Irham Pratama Rino R. Mukti Romi Anto Rosalinda Zeniona Maarebia Ruslan Ruslan Russell F. Howe S, Giovanno Alvin Saefuddin ., Saefuddin Sahidin . Sahriani Ali Samriani Samriani Sari, Andi Y.P. Sarlan, Sarlan Seniwati Dali Seniwati Dali Sernita, Sernita SITI HALIMAH LAREKENG, SITI HALIMAH Sopiarini, Putri St. Fauziah St. Fauziah Subandrio Sulistiani Jarre Suriati Eka Putri Syaharuddin Kasim Syahruddin Kasim Syamsiar, Syamsiar Syarifuddin Liong Syarifuddin Liong Ta'bi, Widi Aprilia Tahril Tanasal A.M Tjodi Harlim Triana Febrianti Wahid Wahab, Abdul Widayati Putri, Tri Yasser, M Yusafir Hala Zahra, Audrey Zarlina ., Zarlina