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Production Process of Large Pore Size Activated Carbon from Palm Kernel Shell using Sodium Chloride as An Activator Nurdin, Ahmad; Iriani, Iriani; Harahap, Hamidah; Fahmi, Aliyah
Indonesian Journal of Chemical Research Vol 10 No 1 (2022): Edition for May 2022
Publisher : Jurusan Kimia, Fakultas Matematika dan Ilmu Pengetahuan Alam, Universitas Pattimura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/ijcr.2022.10-ahm

Abstract

This study aimed to determine the yield of activated carbon, iodine number, and surface area of palm activated carbon. Samples were produced by using sodium chloride (NaCl) as an activator. Palm shells that had been produced by the milling process were then sieved with a 12 mesh sieve and soaked in 20 % NaCl solution. The sample solution was heated over a water bath at 70 oC and continued with the drying process at a constant temperature of 105 oC. The activated shells continued the pyrolysis process at temperatures of 300, 400, and 500 oC for 3 hours. The activated carbon obtained from the pyrolysis process was weighed and then washed using hot distilled water. The samples were dried in an oven at a temperature of 105 oC for 24 hours. The results were analyzed for iodine number using iodometric titration method, surface area using Brunauer- Emmett-Teller (BET) method, and pore structure using the Scanning Electron Microscope (SEM) method. The results showed the best yield was 38.13 % obtained at 20% NaCl and a temperature of 400 oC. The best iodine number was 767.745 mg/g and surface area was 6.790 m2/g, pore volume 4.377 cc/g with pore size 9.781 A.
The Sorogan Method in Improving the Competence of Reading the Yellow Book in the Pasca-Amtsilati Dormitory in Jepara Maula, Rohmatul; Nurdin, Ahmad; Sukarman, Sukarman
YASIN Vol 5 No 1 (2025): FEBRUARI
Publisher : Lembaga Yasin AlSys

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58578/yasin.v5i1.4614

Abstract

Reading the yellow book (kitab kuning) for students in Islamic boarding schools is very important because various religious studies always use the yellow book as a medium to study it in depth. This research reveals the effectiveness of the sorogan method in improving the competence of reading the yellow book among students of the Pasca-Amtsilati dormitory in Jepara, Central Java. The researcher used a descriptive qualitative approach with data collection techniques through interviews, observations, and documentation. The results of the research showed that the efforts of teachers in improving the competence of students reading the yellow book through the sorogan method proved to be very effective. It can be seen from the improvement in the quality of students' reading, students' understanding of the contents of the reading, and their skills in explaining the contents of the reading. For this reason, the sorogan method in several Islamic boarding schools must continue to be preserved and developed for the quality of religious education for the nation's future generations. However, learning the Yellow Book has many benefits for students, namely a comprehensive understanding of religion, development of critical thinking skills, strengthening practical experience, and self-identity.