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Feasibility Test of Vlog Media Development With A Science-Edutaiment Approach Latifah, Diana Rizki; Ahied, Mochammad; Wulandari, Ana Yuniasti Retno; Munawaroh, Fatimatul
IJIS Edu : Indonesian Journal of Integrated Science Education Vol 3, No 2 (2021): July 2021
Publisher : UIN Fatmawati Sukarno Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29300/ijisedu.v3i2.6534

Abstract

This research aims to validate the feasibility of VLog media with a science-edutaiment approach. Thisdevelopment research uses the ADDIE model (Analysis, Design, Development, Implementation, andEvaluation). This research was conducted at Bangkalan Public High School 5, a class VII student populationin the Solar System material. The sampling technique used purposive sampling, with a sample of one classVII G. The results showed that the developed profuk could be declared suitable for use with a percentageof media feasibility of 78.6%, feasibility of 92% and an average of 85.3% with very valid category. Based onthese results it can be stated that VLog media is feasible to use
SYNTHESIS AND CHARACTERIZATION OF CaO PREPARED FROM LIMESTONE USING SOL-GEL METHOD Munawaroh, Fatimatul; Masdya, Yoga; Baqiya, Malik Anjelh; Triwikantoro, Triwikantoro
Indonesian Physical Review Vol. 7 No. 2 (2024)
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/ipr.v7i2.313

Abstract

The sol-gel method has been successfully applied to the synthesis and characterization of calcium oxide (CaO) derived from calcite-based natural limestone from Pamekasan, Madura, East Java Indonesia. Controlled dissolution, titration, gel formation, and subsequent calcination at temperatures 650°C and 900°C were the steps involved in the synthesis. X-ray diffraction was used for characterization to identify the phase that had formed. Supporting software, MATCH! used to analyze the phases and structures and Rietica for refinement using the Rietveld method. The Ca(OH)2 phase formed was 59.65 ± 2.45 %wt before the calcination process, according to the XRD results. 23.71 ± 0.61 %wt CaO was produced by the calcination process at 650°C, and 64.52 ± 1.85 %wt was produced at 900°C. Meanwhile, after calcination at 900°C, crystal size analysis using MAUD software produced CaO with a size of 534 ± 74 nm. K CaO powder synthesized using the sol-gel method is calcined at 900°C to get a higher percentage than at 600°C. The CaO powder can be used for CO2 capture applications because it comes from natural resources and is environmentally friendly.