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Adsorpsi Ion H2PO4- Menggunakan Komposit Mg/Al-NO3 Hidrotalsit Magnetit Hidayah, Miftachul; Sulistyaningsih, Triastuti; Budi Susatyo, Eko
Indonesian Journal of Chemical Science Vol 7 No 2 (2018)
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/ijcs.v7i2.20831

Abstract

Adsorpsi fosfat dalam larutan oleh material Mg/Al-NO3 hidrotalsit-magnetit telah berhasil dilakukan. Penelitian ini diawali dengan sintesis material magnetit (Fe3O4) dan Mg/Al-NO3 hidrotalsit-magnetit yang dilakukan secara kopresipitasi dengan menambahkan larutan basa pada larutan yang mengandung dua kation logam. Material magnetit dan Mg/Al-NO3 hidrotalsit-magnetit hasil sintesis dikarakterisasi menggunakan FT-IR (Fourier Transform Infrared Spectroscopy) dan XRD (X-Ray Diffraction). Kajian adsorpsi fosfat dalam larutan oleh Mg/Al-NO3 hidrotalsit-magnetit dilakukan pada variasi pH larutan. Hasil karakterisasi menunjukkan bahwa material yang terbentuk merupakan Mg/Al-NO3 hidrotalsit-magnetit yang memiliki anion nitrat sebagai anion pengisi daerah antarlapis. Hasil terbaik adsorpsi terjadi pada pH 5 dimana fosfat terserap sebesar 0,048 mg/g atau sekitar 98%.
Analysis of Android-Based Science Learning Media to Improve Motivation and Learning Outcomes of Elementary School Students: A Systematic Literature Review Hidayah, Miftachul; Nisa, Ana Fitrotun; Khosiyono, Banun Havifah Cahyo; Masjid, Akbar Al; Cahyani, Berliana Henu
Jurnal Penelitian Pendidikan IPA Vol 11 No 3 (2025): March
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v11i3.10236

Abstract

According to some elementary school students, science subject matter is included in the category of difficult and less interesting material to learn. Because most of the materials in Science Lessons are abstract. This causes a lack of student motivation and suboptimal learning outcomes. Responding to these challenges, many learning media have been developed, one of which is android-based learning media which is desired to be one of the innovative solutions to overcome challenges in science learning. This study aims to analyze the validity and effectiveness of android-based learning media, especially in science learning in elementary schools in an effort to increase student motivation and learning outcomes. The methodology in this study is by means of a Systematic Literature Review (SLR) which involves 21 relevant articles that are searched using Harzing's Publish or Perish machine with scopus and crossref reference categories, then processed using the PRISMA flow. The results of this study show that all learning media written in the article show a valid and effective category for increasing student motivation and learning.