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All Journal JURNAL KIMIA SAINS DAN APLIKASI Jurnal Sains Materi Indonesia Science and Technology Indonesia Indonesian Journal of Chemistry Jurnal Serambi Engineering Jurnal Abdidas Makara Journal of Science Environmental and Materials Bulletin of Chemical Reaction Engineering & Catalysis Jurnal Sains Materi Indonesia
Yuni Krisyuningsih Krisnandi Yuni Krisyuningsih Krisnandi
Department Of Chemistry, Faculty Of Mathematic And Natural Sciences, Universitas Indonesia
Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Education Energy Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mathematics Physics Public Health Social Sciences Other

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Lignin Valorization to Phenolic Compounds over Metal Oxide-Modified Hierarchical ZSM-5 Zeolites Derived from Indonesian Minerals Pratama, Arnia Putri; Abdullah, Iman; Krisnandi, Yuni Krisyuningsih
Makara Journal of Science Vol. 30, No. 3
Publisher : UI Scholars Hub

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Abstract

Lignin, a key component of lignocellulosic biomass, offers significant potential as a renewable raw material for the sustainable production of aromatic chemicals. To investigate its heterogeneous catalytic depolymerization, benzyl phenyl ether (BPE) was used as a model compound. Hierarchical ZSM-5 catalysts were synthesized and modified with metal oxides (NiO and CuO). Belitung kaolin and Bayat natural zeolite, natural minerals from Indonesia, were used as silica and alumina sources to synthesize hierarchical ZSM-5 zeolite (labeled as ZSM-5N), which was compared with hierarchical ZSM-5 synthesized using pro-analysis precursors (labeled as ZSM-5S). Comprehensive physicochemical characterization using FTIR, XRD, BET, XRF, SEM-EDX, and NH₃-TPD confirmed the formation of the catalysts. Lignin was isolated from Swietenia Mahagoni L. Jacq. wood waste as a biomass source (61.07% extracted lignin). The NiO/ZSM-5 and CuO/ZSM-5 catalysts offered bifunctional acid–redox-active sites. NiO enhanced BPE conversion and phenol production, whereas CuO favored vanillin formation under milder reaction conditions. Among the modified catalysts, NiO/ZSM-5N achieved the highest BPE conversion (90.11%), yielding 23.25% phenol as the major identified product, comparable to NiO/ZSM-5S (90.13% conversion and 25.14% phenol yield). For isolated lignin, NiO/ZSM-5 favored phenol production at 250 °C, whereas CuO/ZSM-5 promoted vanillin formation under milder conditions (200 °C). These findings demonstrate the feasibility and novelty of utilizing Indonesian natural minerals for the synthesis of hierarchical ZSM-5 catalysts and provide new insights into the effects of NiO and CuO modifications on the conversion of BPE and lignin to phenolic compounds.
Co-Authors Adam, Martin Adel Fisli Afiten Rahmin Sanjaya Ahmed, Sabeel Alika Rizki Anggraeni Anastasia Agnes Andita Junia Mulyadi Anita Nur Ramadhani Anya Prilla Azaria Arnia Putri Pratama Arnia Putri Pratama Atia, Hanan Bayu Adi Samodro Dede Nurhalimah Dita Arifa Nurani Duha Rushida Amanullah Eckelt, Reinhard Ekananda, Rizki ENDANG SAEPUDIN Endang Saepudin, Endang Fahriansyah, Irsan Fitriyah Fitriyah Griffith, Benyamin E Hanna, John Vincent Hanzhola Gusman Riyanto Hedi Surahman Idra Herlina Iman Abdullah Irena Khatrin Isnaini Rahmawati Jarnuzi Gunlazuardi Juwono, Ariadne Lakshmidevi Khanifah Khanifah Khatrin, Irena Luthfiyah, Siti Zahrotul Marintan, Marchia Marthalena Martin, Andreas Muhammad Faisal Muhammad Ridwan Muiz, Lisna Junaeni Noer Fadlina Antra Novia Arinda Pradisty Nurani, Dita Arifa Nurhalimah, Dede Paputungan, Zulkarnaen Pradisty, Novia Arinda Pratama, Arnia Putri Priantini, Tania Putri Nurul Amalia Putri, Danika Nurranalya Rahayu, Dyah Utami Cahyaning Rahma Widya Rahma Widya Rahmat Wibowo Rahmawati, Isnaini Ralentri Pertiwi Richter, Manfred Ridwan, Ridwan Rika Tri Yunarti Rika Tri Yunarti Riri Andriyanti Riwandi Sihombing Riwandi Sihombing Riwandi Sihombing Riwandi Sihombing Riwandi Sihombing, Riwandi Robert, Didier Russell Francis Howe Russell Francis Howe Russell Francis Howe Russell Francis Howe Russell Francis Howe, Russell Francis Sabeel Ahmed Sanjaya, Afiten Rahmin Saragi, Indah Revita Sariman Sariman Savitri Octaviani Siti Zahrotul Luthfiyah SJATHA, FITHRIYAH Soleh Kosela Supriyono Supriyono Supriyono Tengku Riza Zarzani N Tesla, Yudistira Uwin Sofyani Widayanti Wibowo Widhyasmaramurti Widya, Rahma Yudistira Tesla Yulia Mariana Tesa Ayudia Putri