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All Journal Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Bulletin of Indonesian Islamic Studies
Azhari Harahap
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Religion Arts Humanities Education Engineering Social Sciences

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Peluruhan Batang Graphite Baterai Bekas Dengan Metode Electrochemical Expoliation Menggunakan Pelarut Asam Sulfat Dan Sodium Sulfat Untuk Produksi Graphene Azhari Harahap; Amun Amri; Syelvia Putri Utami
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 5 (2018): Edisi 2 Juli s/d Desember 2018
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Abstract

Graphene is two dimensional material (2D) consisting of carbon atoms with a flat lattice configuration in a flexible hexagonal pattern. One of the materials that can be used as raw material in graphene synthesis is carbon used battery bar. The purpose of this research was to synthesize graphene using electrochemical exfoliation graphite (EEG) method and to study the process of exfoliation rate over 30, 60, 90, 120 and 150 minutes for 2.5 hours. Graphene was synthesized by using two solvents H2SO4 and Na2SO4 with varied concentrations of : 0.25 M, 0.5 M, 0.75 M and 1 M. From the synthesis results, the best exfoliation rate and the best yields were shown by Na2SO4 solvent at 1 M concentration with a yield of 21.83%. From the graphene conductivity test, the best conductivity was obtained by Na2SO4 solvent at 1 M concentration with conductivity value of 0,1698 Ω-1.cm-1.Key words : Electrochemical exfoliation graphite, graphene, graphite.
Prophetic Communication in Child Protection: Strategies of the Indonesian Child Protection Agency in Preventing and Addressing Violence against Children Azhari Harahap; Nispul Khoiri; Ahmad Sampurna
Bulletin of Indonesian Islamic Studies Vol. 4 No. 2 (2025): Bulletin of Indonesian Islamic Studies
Publisher : KURAS Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51214/biis.v4i2.1615

Abstract

Child protection remains a critical issue in Indonesia, with rising cases of violence against children. This study examines the implementation of prophetic communication by the Indonesian Child Protection Agency in South Labuhan Batu as a strategy to prevent and address child abuse. Utilizing a qualitative descriptive approach, data were collected through in-depth interviews, participatory observation, and document analysis involving LPAI staff, volunteers, psychologists, and religious leaders. Data validity was maintained through triangulation of sources and methods, in-depth field involvement, and peer debriefing.The findings reveal that prophetic communication grounded in the principles of ‘amar ma’rūf (promotion of good), nahimunkar (prevention of harm), and ta’lim/tazkiyah (transcendence and moral development) effectively combines religious, moral, and social dimensions with modern communication strategies. Key supporting factors include skilled human resources, community and government support, and multi-stakeholder collaboration, while challenges involve cultural norms normalizing violence, limited resources, and trauma-related barriers. The study underscores the importance of empathetic, culturally-sensitive, and trauma-informed communication in child protection programs. Implications for policy, practice, and future research are discussed, emphasizing the potential for scaling prophetic communication.
Co-Authors Ahmad Sampurna Amun Amri Nispul Khoiri Syelvia Putri Utami