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Syamsi Aini
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Validity of Interactive learning PowerPoint Media based on Guided Inquiry on Thermochemistry Topic for Class XI SMA/MA Rizka Chairani Yasin; Syamsi Aini
Entalpi Pendidikan Kimia Vol 3 No 3 (2022)
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/epk.v3i3.268

Abstract

Thermochemistry is one of the chemistry learning materials that is difficult for students to understand, so it requires a level of chemical representation in the learning process which is assisted by the presentation of interactive powerpoint media. This study aims to produce an interactive powerpoint learning media based on guided inquiry that is suitable for use for learning and can determine the level of validity of the interactive powerpoint learning media. The type of research used is Research and Development (R&D) with a 4D development model. The research instrument used was a validity questionnaire which was processed using the Aiken's V formula.
Penyuluhan Pembuatan Pupuk Bokashi dari Kotoran Ayam dan Abu Sekam di Nagari Mungka Trisna Kumala Sari; Riga Riga; Isra Yeni; Syamsi Aini; Desy Kurniawati; Romy Dwipa Yamesa Away; Melindra Mulia
Jurnal Pengabdian Pada Masyarakat Vol 7 No 4 (2022): Jurnal Pengabdian Pada Masyarakat
Publisher : Universitas Mathla'ul Anwar Banten

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (429.794 KB) | DOI: 10.30653/002.202274.205

Abstract

COUNSELING ON MAKING BOKASHI FERTILIZER FROM CHICKEN MANURE AND HUSK ASH IN NAGARI MUNGKA. Community activities in the field of livestock are growing in Nagari Mungka, especially raising chickens. However, the processing of chicken manure waste is not handled properly. This may be due to the lack of public knowledge about this waste processing technique. This counseling aims to improve the knowledge and skills of chicken farmers in making bokashi fertilizer from chicken feces in Nagari Mungka, Lima Puluh Kota District. Bokashi fertilizer is a type of organic fertilizer that uses decomposers in the manufacturing process. The basic ingredients for this bokashi fertilizer are chicken feces, husk ash, bran and EM4. The counseling activity includes presentation of material, demonstration and evaluation of activity. Chicken farmers receive the knowledge about the benefits of bokashi fertilizer, how to make it and how to market it if it has the potential to be sold. This activity has a great influence on chicken farmers because this activity is very useful and right on target. Chicken farmers look enthusiastic in participating in the activities. The result of this community service activity is the increased knowledge and skills of breeders in processing chicken manure into bokashi fertilizer and have the desire to try and apply it.
Synthesis and Characterization of Sodium Aluminate from Aluminum and Sodium Hydroxide Dinalia, Dinalia; Syamsi Aini; Jon Efendi
EKSAKTA: Berkala Ilmiah Bidang MIPA Vol. 26 No. 04 (2025): Eksakta : Berkala Ilmiah Bidang MIPA (E-ISSN : 2549-7464) In Progress
Publisher : Faculty of Mathematics and Natural Sciences (FMIPA), Universitas Negeri Padang, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/eksakta/vol26-iss04/627

Abstract

The synthesis of sodium aluminate from aluminum and sodium hydroxide was successfully conducted to optimize its potential as a precursor for zeolite production. Aluminum was reacted with NaOH solution under continuous stirring for five hours, with variations in pH and Al-to-NaOH molar ratio to determine optimal synthesis conditions. The highest aluminum conversion (94.33%) was achieved at pH 13.6 and an Al-to-NaOH molar ratio of 1:4. Fourier-transform infrared (FTIR) spectroscopy confirmed the formation of tetrahedral [AlO₄]⁻ units through characteristic aluminate vibrational bands at 624 and 727 cm⁻¹. X-ray diffraction (XRD) analysis revealed sharp reflections at 2θ ≈ 34.8°, corresponding to crystalline NaAlO₂ (JCPDS No. 33-1200), indicating high crystallinity and phase purity. Scanning electron microscopy coupled with energy-dispersive X-ray (SEM–EDX) analysis showed irregular plate-like crystalline particles with a near-stoichiometric Na:Al ratio (~1:1), confirming compositional homogeneity. Overall, optimized alkalinity and stoichiometry were found to be critical for producing highly crystalline and compositionally pure sodium aluminate, suggesting its suitability as a high-quality, environmentally friendly precursor for zeolite synthesis.
Co-Authors Ahdiatun Nuri Armelia Ananda Chatarina Umbul Wahyuni DESY KURNIAWATI Desyana Anggraeni Dinalia, Dinalia Fajar Sa'bandi Fila Delvia Isra Yeni Jon Efendi Miftahul Khair Muhammad Iqbal Alzain Mulia, Melindra Muthiara Wahyuni Nuranisah Nuranisah Ridha Santika Riga Riga Rizka Chairani Yasin Romy Dwipa Yamesa Away Trisna Kumala Sari Umar Kalmar Nizar Winda Selfira