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Kinetic Analysis of Saponification Reaction in Eco-Friendly Soap Production Based on Waste Cooking Oil Wahyudi, Apri; Sitrous, Berlian; Hidayat, Ferdinand
Hydrogen: Jurnal Kependidikan Kimia Vol. 13 No. 3 (2025): June 2025
Publisher : Universitas Pendidikan Mandalika

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/hjkk.v13i3.14828

Abstract

This study aims to determine the kinetics of the saponification reaction in making solid soap from wasted cooking oil and its effect on the quality of the solid soap produced. The novelty of this study lies in evaluates the effect of different NaOH concentrations and reaction durations on the the kinetic model with quality parameters (free fatty acid, free alkali content, and pH) to demonstrating that a pseudo second order reaction mechanism contributes to superior soap characteristics. The method begins with the refining of wasted cooking oil using activated carbon, making solid soap from refined oil with variations in NaOH concentrations of 1; 1.5; and 2 M in 30; 45; and 60 minutes. Determination of reaction kinetics was carried out by titrimetry and testing the quality of solid soap with parameters of free fatty acid content, free alkali, and degree of acidity (pH) based on SNI 3532-2021. The results showed that the saponification reaction followed 2nd order pseudo kinetics. This is supported by the value of the reaction constant reaching 1.0995 min-1 and the coefficient of determination R2= 0,9954. The optimum variation of solid soap obtained is 2 M NaOH concentration in 60 minutes. Soap products produced through pseudo second-order reaction kinetics have high quality with a white appearance, no rancid odor, smooth and soft texture. This is evidenced by the parameters of free fatty acid and free alkali content of 0.1126% and 0.016%. The degree of acidity (pH) of the solid soap produced is also in the range of 9.5-10. All of these parameters have met the criteria for solid soap according to SNI 3532: 2021.
Integrasi Nilai-Nilai Pendidikan Karakter Melalui Aktivitas Sepak Bola di SD Negeri 1 : Integrasi Nilai-Nilai Pendidikan Karakter Melalui Aktivitas Sepak Bola di SD Negeri 1 Muhammad Fajril Rifaldo; leksono, Kuat; Vito Indarto, Asyidika; Wahyudi, Apri
Indonesia Sport Journal Vol. 8 No. 1 (2025): Indonesia Sport Journal (Januari-Juni)
Publisher : Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/isj.v8i1.65422

Abstract

Character education is a crucial component in shaping students' personalities from an early age. One effective approach to instilling character values is through sports activities, particularly football. This study aims to describe the integration of character education values through football activities at SD Negeri 1 Surabaya Kedaton. A qualitative descriptive approach was used, involving physical education teachers, football extracurricular coaches, and student participants as research subjects. Data were collected through observation, in-depth interviews, and documentation. The data analysis followed the Miles and Huberman model, including data reduction, data display, and conclusion drawing/verification. The results of the study show that football activities serve as a strategic medium to instill values such as discipline, teamwork, sportsmanship, leadership, responsibility, patience, and self-control. Students are consistently trained to be punctual, respect opponents, communicate within the team, and comply with established rules. Furthermore, the roles of teachers and coaches are crucial in guiding students to apply these character values in their daily lives, both on and off the field. This study concludes that football can be an effective and contextual medium for character education in primary school environments. The findings are expected to serve as a reference for curriculum developers and education practitioners in designing extracurricular programs that promote sustainable character development. Keywords: character education, football, primary school, extracurricular, moral values.
ANALISIS PERAN PENDIDIKAN KARAKTER DALAM MEMBANGUN MORALITAS DAN ETIKA PESERTA DIDIK SEKOLAH DASAR Elvita, Yosa; Rifa, Sherly Safta; Sagita, Lutfi Nada; Wahyudi, Apri
JS (JURNAL SEKOLAH) Vol. 8 No. 4 (2024): SEPTEMBER 2024
Publisher : Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/js.v8i4.63902

Abstract

Abstract: Elementary school students often exhibit deviant behavior, such as a lack of discipline and a decline in morality and ethics. This is due to the insufficient implementation of character education in daily learning. This study uses a qualitative method, focusing on literature review, case studies, and analysis of previous research data. The purpose of this article is to identify the factors influencing the decline in morality and ethics, as well as the role, implementation, and impact of character education in daily life. The findings show that character education in elementary schools plays a crucial role in building morality and ethics, shaping individuals to be ethical, responsible, and with integrity in their daily interactions. Keyword: Character Education, Morality, and Ethics. Abstrak: Peserta didik sekolah dasar sering menunjukkan perilaku menyimpang, seperti kurang disiplin dan rendahnya moralitas serta etika. Hal ini disebabkan oleh kurangnya penerapan pendidikan karakter dalam pembelajaran sehari-hari. Penelitian ini menggunakan metode kualitatif, berfokus pada kajian pustaka, studi kasus, dan analisis data dari penelitian terdahulu. Tujuan penulisan artikel untuk mengetahui faktor-faktor yang memengaruhi turunnya moralitas dan etika, serta peran, implementasi pendidikan karakter dan pengaruh pendidikan karakter di kehidupan sehari-hari. Hasil penelitian menunjukkan bahwa pendidikan karakter di sekolah dasar berperan penting dalam membangun moralitas dan etika sehingga membentuk individu yang beretika, bertanggung jawab, dan berintegritas dalam interaksi sehari-hari.Kata Kunci: Pendidikan Karakter, Moralitas, dan Etika
Pemanfaatan Media Sosial Sebagai Sarana Promosi Budaya Lokal Oleh Remaja Melalui Pelatihan Branding Digital di Kawasan Wisata Adha, Muhammad Mona; Utami, Rahma Kurnia Sri; Istiawati, Novia Fitri; Wahyudi, Apri
Kurnia Mengabdi: Jurnal Pengabdian kepada Masyarakat Vol. 2 No. 2 (2025): Kurnia Mengabdi: Jurnal Pengabdian kepada Masyarakat
Publisher : CV. Kurnia Grup

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61476/6eynde11

Abstract

The rapid development of digital technology in the Industrial Revolution 4.0 era has transformed social media from a communication tool into a strategic medium for cultural promotion. However, many youths still use social media passively without understanding its potential to strengthen local culture and tourism. This issue became the basis for implementing a community service program at SMP Negeri 44 Bandar Lampung, aiming to improve students’ digital literacy and skills in using social media as a platform for promoting local culture through digital branding training. The activity applied a participatory training method through workshops, group discussions, and mentoring. The results showed that students’ abilities in creating creative content such as videos, posters, and cultural narratives increased significantly. These works were published on the school’s social media account as part of local culture promotion efforts. This program successfully fostered cultural awareness and creativity among students, serving as a model for youth empowerment through digital-based cultural preservation.
Peran Kepemimpinan Kepala Sekolah terhadap Tingkat Kedisiplinan Guru di SD Negeri 1 Negara Ratu Lampung Selatan Sholla, Abdaa Idzaa; Ginting, Dani Syahpitri; Nursanti, Aprillia; Wahyudi, Apri
Jurnal Pendidikan Tambusai Vol. 9 No. 3 (2025): Desember
Publisher : LPPM Universitas Pahlawan Tuanku Tambusai, Riau, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Penelitian ini mengkaji peran kepemimpinan kepala sekolah dalam pengelolaan kedisiplinan guru di SD Negeri 1 Naegara Ratu Lampung Selatan. Kedisiplinan guru merupakan faktor penting yang memengaruhi mutu pembelajaran dan iklim sekolah secara menyeluruh. Metode penelitian yang digunakan adalah deskriptif kualitatif dengan teknik pengumpulan data wawancara, observasi, dan dokumentasi. Hasil penelitian menunjukkan bahwa kedisiplinan guru di sekolah masih bersifat informal dan kurang didukung dengan aturan tertulis serta sistem evaluasi yang konsisten. Kepala sekolah berperan aktif dalam memberikan arahan dan pengawasan, namun pembinaan individual dan sistem penghargaan atau sanksi perlu ditingkatkan. Hambatan utama yang ditemukan adalah rendahnya kesadaran disiplin sebagian guru dan lemahnya sistem pengawasan. Penelitian ini merekomendasikan perbaikan sistem manajemen kedisiplinan yang lebih struktural dan kolektif untuk meningkatkan profesionalisme guru dan mutu pendidikan di sekolah.
MANAJEMEN KESISWAAN DALAM UPAYA PENCEGAHAN PERUNDUNGAN DI SEKOLAH DASAR Az Zahra, Nur; Hanum, Fadila; Wahyudi, Apri
Al-Irsyad: Journal of Education Science Vol 5 No 1 (2026): Januari 2026
Publisher : Sekolah Tinggi Keguruan dan Ilmu Pendidikan Darud Da'wah Wal Irsyad Pinrang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58917/aijes.v5i1.561

Abstract

Perilaku perundungan (bullying) di sekolah dasar merupakan masalah krusial yang menuntut intervensi sistematis dan berkelanjutan. Penelitian ini bertujuan untuk merancang, mengimplementasikan, dan mengevaluasi program anti-perundungan yang komprehensif melalui manajemen kesiswaan di SDN 1 Negararatu. Penelitian ini menggunakan metode Penelitian Tindakan Sekolah (PTS) yang dirancang dalam beberapa siklus. Program ini mengintegrasikan langkah-langkah yang telah diambil sekolah, seperti pembentukan Tim Pencegahan dan Penanganan Kekerasan (TPPK) dan program "Dongeng Anti-Perundungan", dengan intervensi baru yang akan dilaksanakan. Intervensi utama yang diusulkan adalah pembentukan Duta Anti-Bullying sebagai edukator sebaya (peer educator) dan pelopor perubahan, serta peluncuran Gerakan Anak Baik dan Tangguh (GABATA). Program GABATA berfokus pada penguatan karakter, promosi perilaku positif, dan pembangunan ketangguhan (resiliensi) siswa. Penelitian ini diharapkan dapat menghasilkan model intervensi holistik yang efektif dalam menekan angka perundungan dan membangun budaya sekolah yang aman, positif, dan inklusif di SDN 1 Negararatu. Teknik pengumpulan data meliputi kuesioner pre-test/post-test, observasi sistematik, analisis jurnal perilaku, dan wawancara semi-terstruktur. Hasil utama menunjukkan penurunan insiden ejekan dari 15 menjadi 6 kasus, pertengkaran dari 10 menjadi 3 kasus, dan pengucilan dari 8 menjadi 2 kasus setelah dua siklus pelaksanaan. Peran Duta Anti-Bullying dan kegiatan GABATA meningkatkan kesadaran, empati, dan inisiatif pelaporan oleh siswa. Implikasi praktis penelitian ini adalah model intervensi berbasis partisipasi siswa (Duta + GABATA) dapat menjadi komponen penting dalam manajemen kesiswaan untuk menekan perundungan di tingkat dasar, serta direkomendasikan untuk diadaptasi dan diuji di konteks sekolah lain.
Co-Authors ABDUL HAMID Adelia, Karlita Aditya, Irhan Agustina, Fauriza Ahmad Ghiffari Alben Ambarita Andhika, M Yogya Anisa Anwar, Muhammad Saidun Arita Marini Az Zahra, Nur Azzahra, Riva Syafa Barokah, Ihda Lailatul Brahmono, Boris Choirudin, Choirudin Darsono Darsono Delfi Riana, Siska Dewi, Rahma Citra Dwiyanti, Ririn Elhefni Elhefni Elvita, Yosa Evi Gusliana Faradhila Putri Fertiliana Dea, Leli Fita Fatimah, Fita Ginting, Dani Syahpitri Hafidz, Ridho Hakim, Aibi Hanum, Fadila Haryani Hidayat, Ferdinand I.E Habibi, Nur Istiawati, Novia Fitri Janatan Salsabiela, Hana Khoerunisa, Intar Kirana, Masita Putri Kirani, Niki Sasi Kusuma, Nurhadi leksono, Kuat Lestari, Adilla Dwi Putri Maka Suci, Tassya Mantik, Aliyah Marzuki, Idelia Masrur, Muhammad Merkuri, Andriyani Muhammad Fajril Rifaldo Muhammad Idris Muhammad Mona Adha Muhammad Yusuf Muhtarom Nofita Sari, Ema Nurani, Diva Nursanti, Aprillia Puji Astuti Putri Oktaviana, Andini Putri, Ainun Razella Dama Putri, Miftahul Zannah Raharjo Putri, Rahmanisa Daiyah Rabiansyah, Muhammad Syeki Raffi Ondri, Muhammad Rani Darmayanti Ranisa, Siti Rifa, Sherly Safta Riyadi, Syifa Azzahra Sagita, Lutfi Nada Salamun Salamun Salamun Saman, Saman Sepria Sofyan, Dea Septari, Nanda Septiani, Ella Setiyawati, Valentina Sholla, Abdaa Idzaa Sintia, Eni Sita Husnul Khotimah, Sita Husnul Siti Nurjanah Sitrous, Berlian Soviyani, Soviyani Sowiyah Sowiyah Sri Astuti Syifaa Nabiilah, Daffa Tri Susanti, Irma Umurohmi, Ulfah Utami, Rahma Kurnia Sri Vito Indarto, Asyidika Windayanti, Wiwin Zulela Zulela