    {
      "department": "FAKULTAS SAINS DAN TEKNOLOGI",
      "subjects": [
        543
      ],
      "eprintid": 79617,
      "thesis_type": "skripsi",
      "date": "2026-08-28",
      "userid": 12460,
      "documents": [
          {
            "language": "id",
            "placement": 1,
            "eprintid": 79617,
            "files": [
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                  "datasetid": "document",
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                  "objectid": 1087705,
                  "uri": "http:\/\/digilib.uin-suka.ac.id\/id\/file\/1893921",
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                  "hash": "4bc311c6617a2295340f4f467da90aea",
                  "filesize": 7963472,
                  "filename": "22106030019_BAB-I_IV-atau-V_DAFTAR-PUSTAKA.pdf"
                }
            ],
            "content": "published",
            "rev_number": 3,
            "uri": "http:\/\/digilib.uin-suka.ac.id\/id\/document\/1087705",
            "main": "22106030019_BAB-I_IV-atau-V_DAFTAR-PUSTAKA.pdf",
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            "docid": 1087705,
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            "security": "public",
            "pos": 1,
            "formatdesc": "SINTESIS DAN ANALISIS MORFOLOGI DAN LUAS PERMUKAAN KATALIS DARI KULIT PISANG KEPOK SERTA APLIKASINYA SEBAGAI KATALIS PADA TRANSESTERIFIKASI MINYAK KELAPA SAWIT"
          },
          {
            "language": "id",
            "placement": 2,
            "eprintid": 79617,
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                  "mtime": "2026-10-29 01:55:17",
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                  "objectid": 1087706,
                  "uri": "http:\/\/digilib.uin-suka.ac.id\/id\/file\/1893924",
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                  "hash": "0b730361441f8fb26e516fafbdcf0428",
                  "filesize": 15896146,
                  "filename": "22106030019_BAB-II_sampai_SEBELUM-BAB-TERAKHIR.pdf"
                }
            ],
            "content": "published",
            "rev_number": 3,
            "uri": "http:\/\/digilib.uin-suka.ac.id\/id\/document\/1087706",
            "main": "22106030019_BAB-II_sampai_SEBELUM-BAB-TERAKHIR.pdf",
            "mime_type": "application\/pdf",
            "docid": 1087706,
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            "pos": 2,
            "formatdesc": "SINTESIS DAN ANALISIS MORFOLOGI DAN LUAS PERMUKAAN KATALIS DARI KULIT PISANG KEPOK SERTA APLIKASINYA SEBAGAI KATALIS PADA TRANSESTERIFIKASI MINYAK KELAPA SAWIT"
          }
      ],
      "rev_number": 10,
      "creators": [
        {
          "name": {
            "lineage": null,
            "given": "NIM.: 22106030019",
            "honourific": null,
            "family": "Azzarkasyi Azka"
          }
        }
      ],
      "dir": "disk0\/00\/07\/96\/17",
      "keywords": "FAME, Kulit Pisang Kepok, Katalis Heterogen, Transesterifikasi",
      "lastmod": "2026-10-30 06:16:28",
      "ispublished": "pub",
      "metadata_visibility": "show",
      "date_type": "published",
      "eprint_status": "archive",
      "status_changed": "2026-10-30 06:16:28",
      "datestamp": "2026-10-30 06:16:28",
      "uri": "http:\/\/digilib.uin-suka.ac.id\/id\/eprint\/79617",
      "thesis_name": "other",
      "note": "Sudarlin, M. Si.",
      "full_text_status": "restricted",
      "contact_email": "muh.khabib@uin-suka.ac.id",
      "divisions": [
        "jur_kim"
      ],
      "abstract": "Kepok banana peel (Musa acuminata × balbisiana Colla) is a biomass waste\r\ncontaining minerals such as potassium, calcium, phosphorus, and silicon, making it\r\na potential raw material for heterogeneous catalysts. This study aimed to analyze\r\nthe characteristics of a catalyst derived from calcined kepok banana peel in terms\r\nof basicity, morphology, elemental composition, surface area, pore characteristics,\r\nand crystal structure, as well as to evaluate its performance in the transesterification\r\nof palm oil. The catalyst was prepared by calcination at 750°C for 3 hours and\r\nsubsequently characterized using Scanning Electron Microscopy-Energy\r\nDispersive X-ray (SEM-EDX), Brunauer-Emmett-Teller (BET), and X-ray\r\nDiffraction (XRD) analyses. Basicity was assessed using the Hammett indicator\r\nmethod combined with benzoic acid titration. The fatty acid methyl ester (FAME)\r\nproduct was analyzed in terms of yield and compound composition using Gas\r\nChromatography-Mass Spectrometry (GC-MS). اThe اbasicity ا test ا revealed ا an اH₋ ا\r\nvalue of greater than 9.3, with a total basicity of 0.76 ± 0.043 mmol\/g. EDX analysis\r\nidentified potassium as the predominant metallic element at 15.90%. XRD analysis\r\nperformed using the Match! application and the Crystallography Open Database\r\n(COD) اidentified اthe اcrystalline اphases اCa₃(PO₄)₂, اCaCO₃, اK₄P₂O₇, اK₂SiO₃, اK₂CO₃, ا\r\nand KCl. Crystal structure analysis revealed variations in crystal systems, lattice\r\nparameters, and interplanar spacings among the constituent phases, while Scherrer\r\nequation calculations yielded crystallite sizes ranging from 3.65 to 43.64 nm. BETBJH\r\nanalysis showed a specific surface area of 20.90 m²\/g, a total pore volume of\r\n0.0864 cm³\/g, and an average pore diameter of 16.54 nm. Transesterification carried\r\nout using 7% catalyst loading, an oil-to-methanol molar ratio of 1:15, a reaction\r\ntemperature of 60–65°C, and a reaction time of 2 hours produced FAME with a\r\nvolumetric yield of 75.00%, or approximately 73.92% based on mass estimation.\r\nGC-MS analysis showed that 13 out of 16 identified peaks corresponded to FAME\r\ncompounds, with a total area of 99.48%, in which C18:1 FAME was the most\r\nabundant component at 51.84%. These results indicate that the kepok banana peelbased\r\ncatalyst possesses basic properties along with physical characteristics and a\r\ncrystal structure that support its use as a heterogeneous catalyst, although the FAME\r\nyield obtained has not yet reached the defined target.",
      "type": "thesis",
      "title": "SINTESIS DAN ANALISIS MORFOLOGI DAN LUAS PERMUKAAN KATALIS DARI KULIT PISANG KEPOK SERTA APLIKASINYA SEBAGAI KATALIS PADA TRANSESTERIFIKASI MINYAK KELAPA SAWIT",
      "institution": "UIN SUNAN KALIJAGA YOGYAKARTA",
      "pages": 137
    }