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Rahayu, Aster
Ahmad Dahlan University
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Journal : Eksergi: Chemical Engineering Journal

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Fourier Transform Infrared (FTIR) Characterization of Sulfate Ion Adsorption on One-Pot Synthesized Quaternary Ammonium Polymer Derived from Vinasse Waste Sari, Hutri Puspita; Rahayu, Aster; Cahya Hakika, Dhias; Pramia Lestari, Syahrani
Eksergi Vol 23 No 1 (2026)
Publisher : Prodi Teknik Kimia UPN "Veteran" Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31315/eksergi.v23i1.15924

Abstract

Vinasse is a major liquid waste generated from the bioethanol industry and contains a high concentration of sulfate ions that may cause environmental problems if not properly managed. This study investigates sulfate adsorption from vinasse wastewater using a one-pot synthesized quaternary ammonium polymer, with a focus on functional group interactions analyzed by Fourier Transform Infrared Spectroscopy (FTIR). Quantitative adsorption experiments were conducted to confirm sulfate removal, while FTIR analysis was employed to examine changes in functional group characteristics before and after adsorption under various operating conditions. The quantitative results demonstrate that sulfate adsorption proceeds rapidly, achieving a removal efficiency of approximately 87.5534% with an adsorption capacity of 10.6800mg/g at a contact time of 20 minutes under the investigated conditions. FTIR spectra indicate that sulfate adsorption does not alter the main polymer structure and is primarily associated with changes in the intensity of bands related to quaternary ammonium groups and sulfate vibrations, suggesting non-covalent interactions dominated by electrostatic attraction, with possible contributions from hydrogen bonding. Overall, this study provides quantitative evidence of sulfate adsorption from real vinasse wastewater and demonstrates the usefulness of FTIR analysis in elucidating interaction behavior between sulfate ions and quaternary ammonium polymer functional groups.
Co-Authors Agus Aktawan, Agus Alfi Zaini Amrillah, Nafira Alliya BalqisViratu Hapsari Althaf Irfan Fachrezy Amelia, Shinta Amilia Amilia, Amilia Amillia, Amillia Amrillah, Nafira Alfi Zaini Areeprasert, Chinnathan Awaluddin Nurmiyanto, Awaluddin BalqisViratu Hapsari, Alliya Cahya Hakika, Dhias Chusna, Firda Mahira Alfiata Dewi Wulandari, S.Hut., M.Agr., Ph.D Dhias Cahya Hakika Dhias Cahya Hakika Dhias Cahya Hakika Dita Permata Putri Endah Sulistiawati Erna Astuti Fajri, Joni Aldilla Farah Fadillah Hanum Farrah Fadhillah Hanum Farrah Fadhillah Hanum Febriani, Annisa Vada Firda Mahira Alfiata Chusna Hanum, Farrah Fadhillah Hapsauqi, Iqbal Helmi Mustafa, Yoga Nawaki Ikko Nirwana Luthfiani Imam Santosa Indah Budiarti, Gita Irwan Mulyadi Jamilatun, Siti Jamilatun Joko Pitoyo Joni Aldilla Fajri Lee Wah Lim Lee Wah Lim Lee Wah Lim Lia Anggresani Lim , Lee Wah Lindi Juliantri Lukman Hakim Marlena, Yuni Maryudi Maryudi Maryudi Maryudi - Maryudi Maryudi Maryudi Maryudi Maryudi Mohammed, Hamad Khudhair Muhammad Kresna Islami Muhammad Kresna Islami Muhammad Kunta Biddinika Mulyadi, Irwan Muthadin , Akhmad Sabilal Nafira Alfi Zaini Amrillah Nafira Alfi Zaini Amrillah Ningsih, Devi Yogi Noviana Nuraini Nuraini Nuraini Nuraini Nuraini Nuraini Nuraini Nurmustaqimah Nurmustaqimah, Nurmustaqimah NURUL WULANDARI Pramia Lestari, Syahrani Puspita Sari, Hutri Rahma Yunita Amalia Refah Syauqi Refah Syauqi Remmo Sri Ardiansyah Riska Setyarini Ryan Sutedja S. Salamah Sari, Hutri Puspita Sartika Selang Setya Wardhana, Budi Setyarini , Riska Shafa Zahira Shinta Amelia Siti Jamilatun Siti Salamah Siti Salamah Soedjatmiko Sri Ardiansyah, Remmo Suradi, Siti Samahani Taufiqurahman , Muhamad Akmal Toyohide Takeuchi Ulung Muhammad Sutopo Ummi Khasanah Veranica Veranica Veranica Veranica Veranica, Veranica Vivi Sisca Winda Dwi Anggraini Yoga Nawaki Helmi Mustafa Zahira, Shafa Zahrul Mufrodi, Zahrul