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All Journal Bahtsuna: Jurnal Penelitian Pendidikan Islam Sainteknol : Jurnal Sains dan Teknologi
Arobi, Ibnu
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Synthesis of Glycerol Monooleate with MgO-Impregnated Natural Zeolite Catalyst Mukti, Nur Indah Fajar; Putri, Avicenna Mustika; Nur, Wahidah; Arobi, Ibnu; Arifa, Muhammad Ridho
Sainteknol : Jurnal Sains dan Teknologi Vol. 22 No. 1 (2024): June 2024
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/sainteknol.v22i1.5441

Abstract

Glycerol Monooleate (GMO) is synthesized via esterification, which involves the reaction between glycerol and oleic acid to yield monoglyceride esters. The esterification reaction is intrinsically slow, requiring the use of a catalyst to decrease the activation energy. The catalyst used in this study is a naturally occurring zeolite catalyst that has been altered through acid treatment and impregnation with Mg(NO3)2, and then subjected to calcination to convert it into MgO. Typically, this research consists of two steps: an initial phase where a natural zeolite catalyst is altered, followed by a subsequent phase where glycerol monooleate production. This study investigates the effects of different variables on the reaction. The variables include temperature (140–180oC), catalyst loading (3-10 %weight), glycerol to oleic acid ratio (2:1, 3:1, 4:1), reaction time (0–180 minutes), and stirring speed (125-525 rpm). The research results demonstrate that the highest conversion rate was achieved with a temperature of 180oC, a catalyst concentration of 10%, and a reactant ratio of 3:1 (glycerol to oleic acid). The ideal response time was found to be 120 minutes. The reaction kinetics can be estimated by employing a pseudo reaction equation that follows a first-order rate law. The rate constant, represented by k', can be approximated using the Arrhenius equation. The reaction has an activation energy of -18.64 kJ.mol-1, and the value of A is 1.41 cm3.g-1.minute-1.
Efektifitas Pembelajaran  Meningkatkan Sikap  Kedisiplinan   Siswa Melalui Apel Pagi di MA. Darut Tauhid Tanjung Sari Krejengan Arobi, Ibnu; Aini, Evita Nur; Hasanah, Abidatul
BAHTSUNA: Jurnal Penelitian Pendidikan Islam Vol. 4 No. 1 (2022): Vol. 4 No. 1 (2022): April 2022
Publisher : LP3M UNZAH GENGGONG

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (920.5 KB) | DOI: 10.55210/bahtsuna.v4i1.119

Abstract

Abstrak Penelitian ini bertujuan untuk mengetahui peningkatan sikap kedisiplinan siswa MA. Darut Tauhid Tanjungsari Krejengan Tahun ajaran 2021/2022 melalui apel pagi siswa. Jenis penelitian ini adalah jenis penelitian tindakan kelas. Subjek penelitian adalah siswa siswi kelas X,XI,XII MA.Darut Tauhid Tanjungsari Krejengan yang berjumlah 85 siswa. Metode pengumpulan data dalam penelitian ini adalah observasi. instrument penelitian yang digunakan adalah lembar observasi. Kriteria peningkatan kedisiplinan yang dicapai siswa-siswi dilihat dari adanya perubahan kearah perbaikan.Hasil penelitian menunjukkan bahwa dengan kegiatan apel pagi dapat meningkatkan sikap kedisiplinan siswa. Kata kunci :Upaya Guru, kedisiplinan Siswa,apel pagi, MA.Darut Tauhid Tanjungsari
Sistem Pengelolaan Pendidikan di MA Raudatul Muta’allimin Opo-Opo Krejengan Probolinggo Tahun 2021 Arobi, Ibnu; Komar, Abdul
BAHTSUNA: Jurnal Penelitian Pendidikan Islam Vol. 4 No. 2 (2022): Vol. 4 No. 2 (2022): September 2022
Publisher : LP3M UNZAH GENGGONG

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (427.855 KB) | DOI: 10.55210/bahtsuna.v4i2.120

Abstract

Abstract The school as an educational management institution is the second institution after the family which consists of several elements, including the principal, teachers, employees, students and errand boys or school managers. So it is necessary to have an established management and organization so that educational activities run smoothly and are in accordance with the goals of national education. Therefore, to find out in detail about the school management of the Tarbiyah faculty, Zainul Hasan Genggong Islamic University held a teaching practice program. Where this teaching practice is a program that provides material and practice on how to teach well, master classes, interact with students and train students mentally so that they are not awkward when they become real teachers. School management is an integrated part of Teaching Practice activities in schools in the form of an introduction to various aspects of schooling and its management mechanisms, both concerning educational and administrative aspects, under the guidance and coordination of the school principal. Keywords: educational Management, concerning educational and administrative aspects
Co-Authors Aini, Evita Nur Arifa, Muhammad Ridho Hasanah, Abidatul Komar, Abdul Nur Indah Fajar Mukti, Nur Indah Fajar Nur, Wahidah Putri, Avicenna Mustika