Repo Dosen ULM

One-step synthesis to enhance the acidity of a biocarbon-based sulfonated solid acid catalyst

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dc.contributor.author Ma’rifah, Yulia Nurul
dc.contributor.author Nata, Iryanti Fatyasari
dc.contributor.author Wijayanti, Hesti
dc.contributor.author Mirwan, Agus
dc.contributor.author Irawan, Chairul
dc.contributor.author Putra, Meilana Dharma
dc.contributor.author Kawakita, Hidetaka
dc.date.accessioned 2022-12-21T01:51:19Z
dc.date.available 2022-12-21T01:51:19Z
dc.date.issued 2019-04
dc.identifier.issn 2086-9614
dc.identifier.uri https://repo-dosen.ulm.ac.id//handle/123456789/26551
dc.description.abstract The main purpose of this study is to produce and generate a solid acid catalyst from biomass with high reactivity that can be used in catalytical reactions such as hydrolysis, and is environmentally friendly and reusable. A biocarbon-based sulfonated catalyst was prepared by the carbonization of palm empty fruit bunches (PEFB), followed by sulfonation. In order to enhance the acidity of the biocarbon, different concentrations of hydroxyethylsulfonic acid were added to the solution during sulfonation at 180 oC for 4 h in a Teflon stainless steel autoclave. The H+ ion capacity of the biocarbon-sulfonated acid catalyst (BSC) was increased twofold (3.57 mmol/g) in the presence of 10% of hydroxyethylsulfonic acid and 10% of acrylic acid. XRay Fluorescence (XRF) analysis showed that the BC-SO3H contained 38% of S. The original structure of the PEFB after carbonization disintegrated from the fibrous materials onto porous carbon. The crystalline index (CrI) of the PEFB significantly decreased to about 32% and a wide broad peak of a X-Ray Diffraction (XRD) pattern of around 20-30o were observed, which shows that an amorphous biocarbon structure had been identified. Fourier Transform Infra-Red (FT-IR) analysis confirmed that the -SO3H, COOH and -OH functional groups were deposited on the carbon due to specific peaks at around 1180 cm-1, 1724 cm-1 and 3431 cm-1, respectively. Decomposition of the sulfonic groups on the biocarbon-sulfonated solid catalyst was observed from 227.9 oC, as it shown by thermal gravimetric analysis (TGA). en_US
dc.description.sponsorship The authors are grateful for the financial support from International Research Collaboration and Scientific Publication (contract No. 040/UN8.2/PL/2018), Ministry of Research, Technology and Higher Education, Republic of Indonesia en_US
dc.language.iso en en_US
dc.publisher International Journal of Technology en_US
dc.subject Acid catalyst en_US
dc.subject Biocarbon en_US
dc.subject Palm empty fruit bunch en_US
dc.subject Sulfonated en_US
dc.subject Sulfonation en_US
dc.title One-step synthesis to enhance the acidity of a biocarbon-based sulfonated solid acid catalyst en_US
dc.type Other en_US


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