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All Journal AJARCDE (Asian Journal of Applied Research for Community Development and Empowerment) Journal of Basication (JOB) : Jurnal Pendidikan Dasar
Ade Andini
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Agriculture, Biological Sciences & Forestry Earth & Planetary Sciences Education Energy Environmental Science

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PENERAPAN MODEL PEMBELAJARAN INKUIRI UNTUK MENINGKATKAN HASIL BELAJAR IPS SISWA KELAS V Ade Andini; Rusmin, Lisnawati; Hikmawati
Journal of Basication (JOB) : Jurnal Pendidikan Dasar Vol. 7 No. 2 (2023): Journal of Basication (JOB) : Jurnal Pendidikan Dasar
Publisher : Jurusan PGSD FKIP Universitas Halu Oleo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36709/jobpgsd.v7i2.36

Abstract

Penelitian ini dilatarbelakangi oleh rendahnya hasil belajar IPS siswa tahun ajaran 2022/2023. Penelitian ini bertujuan untuk mengetahui apakah penerapan model pembelajaran inkuiri dapat meningkatkan hasil belajar IPS siswa kelas V SDN 26 Kendari. Jenis penelitian ini adalah penelitian tindakan kelas, dengan subjek penelitian siswa kelas V SDN 26 Kendari yang berjumlah 34 orang. Penelitian dilaksanakan dalam 2 siklus dan setiap siklus terdiri dari 2 kali pertemuan. Hasil penelitian menunjukkan bahwa hasil belajar siswa dengan menerapkan model pembelajaran inkuiri pada siklus I diperoleh presentase ketuntasan secara klasikal sebesar 56% dengan nilai rata-rata 67,05 dan pada siklus II mengalami peningkatan dengan persentase ketuntasan menjadi 85% dengan nilai rata-rata 80. Sehingga dapat dikatakan bahwa penerapan model pembelajaran inkuiri dapat meningkatkan hasil belajar IPS siswa pada tema 9 benda-benda di sekitar kita kelas V SDN 26 Kendari.
Preparation and Performance of Silica Membranes on alpha-Alumina Flat Disk for Bio-CNG (CH4/CO2) Purification Putri, Jesika Kirana; Ramadhanu Dirja; Suprihatin; Hens Saputra; Ade Andini; Arfiana
AJARCDE (Asian Journal of Applied Research for Community Development and Empowerment) Vol. 9 No. 3 (2025)
Publisher : Asia Pacific Network for Sustainable Agriculture, Food and Energy (SAFE-Network)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29165/ajarcde.v9i3.852

Abstract

This study focuses on the synthesis and performance evaluation of silica membranes supported on ?-–alumina flat disks for bio–CNG (CO2/CH4) purification. The membranes were fabricated via a sol–gel method using tetraethyl orthosilicate (TEOS) as the silica precursor and cetyltrimethylammonium bromide (CTAB) as the templating agent. CTAB concentrations were varied from 0.01 to 0.09 M, while drying temperatures ranged from 80 to 120 °C. Characterisation through SEM–EDX, XRD, and gas permeation tests revealed that an increase in CTAB concentration produced a more uniform pore structure and enhanced CH4 flux. However, excessive CTAB led to over–templating, resulting in microcracks. The optimal membrane was obtained at 0.05 M CTAB and a drying temperature of 105 °C, yielding a separation factor (?- = 2.14) with stable structural integrity. Gas transport was dominated by Knudsen diffusion, favouring CH4 over CO2, with an experimental CH2/CO4 selectivity (?- = 3.21) exceeding the theoretical Knudsen value (1.66). This indicates that, in addition to Knudsen flow, microstructural factors such as pore interconnectivity and partial defects contributed to CH4 transport through the silica membrane. These findings indicate that silica membranes synthesised under optimised sol–gel conditions exhibit strong potential for efficient bio–CNG upgrading, supporting renewable, low–carbon energy applications. Contribution to Sustainable Development Goals (SDGs):SDG 7: Affordable and Clean EnergySDG 9: Industry, Innovation, and InfrastructureSDG 13: Climate Action
Co-Authors Arfiana Hens Saputra Hikmawati Putri, Jesika Kirana Ramadhanu Dirja Rusmin, Lisnawati Suprihatin