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All Journal IJFAC (Indonesian Journal of Fundamental and Applied Chemistry) Jurnal Abdimas Mandiri Jurnal Abdimas Prakasa Dakara Indonesian Journal of Material Research
Adhiyanti, Nurmalina
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Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Education Electrical & Electronics Engineering Energy Engineering Environmental Science Social Sciences

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Hydrogen Production from Aluminum Waste Using the Aluminum-Water Method with Potassium as Activator Amelia, Icha; Rohendi, Dedi; Rachmat, Addy; Syarif, Nirwan; Yulianti, Dwi Hawa; Sya'baniah, Nyimas Febrika; Adhiyanti, Nurmalina; Adelia, Ory; Normah, Normah
IJFAC (Indonesian Journal of Fundamental and Applied Chemistry) Vol 9, No 2 (2024): June 2024
Publisher : IJFAC (Indonesian Journal of Fundamental and Applied Chemistry)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24845/ijfac.v9.i2.111

Abstract

Research on hydrogen production from aluminum waste using the aluminum-water method using potassium as an activator has been successfully carried out. This research aims to determine the performance of the potassium activator in hydrogen production with variable water volume and potassium percentage. Hydrogen gas production is carried out using 60 mesh aluminum waste. Optimum conditions were achieved when a mass of 1 gram of aluminum was reacted with an additional volume of water of 1.5 mL, and 7% w/w of the activator mass, with the production of hydrogen gas of 553 mL at a production rate of 69 mL/minute.
Efficient Adsorption of Cr(VI) from Aqueous Solutions Using Composites Modified with Ni/Al LDH and Keggin Type Compounds Normah, Normah; Adhiyanti, Nurmalina; Sayeri, Rabellia Juladika; Wijaya, Alfan
Indonesian Journal of Material Research Vol. 2 No. 2 (2024): July
Publisher : Magister Program of Material Science Graduate School of Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26554/ijmr.20242228

Abstract

This study aims to synthesize the NiAl-LDH/K4[α-SiW12O40] composite using the coprecipitation method and evaluate its ability to adsorb Cr(VI) from aqueous solutions. The material characterization showed a significant increase in the specific surface area of the composite compared to pure NiAl-LDH, contributing to an enhanced Cr(VI) adsorption capacity. XRD and FT-IR results confirmed the successful synthesis and integration of K4[????-SiW12O40] into the NiAl-LDH structure. At the same time, BET analysis indicated that the specific surface area of the composite doubled compared to pure NiAl-LDH. The adsorption kinetics data indicated that the adsorption process followed the Pseudo-Second-Order (PSO) model with an R2 value close to 1, suggesting the dominance of chemisorption in the Cr(VI) adsorption mechanism. Isotherm analysis showed that the Freundlich model was more suitable than the Langmuir model, indicating that adsorption occurred on a heterogeneous surface with multilayer formation. The Cr(VI) adsorption capacity of the NiAl-LDH/K4[α-SiW12O40] composite reached 17.123 mg/g, higher than that of pure NiAl-LDH at 188.68 mg/g. The Cr(VI) adsorption process involved chemical interactions between Cr(VI) and functional groups on the adsorbent surface, complex formation, and precipitation.
Efektivitas Sosialisasi Bahaya Bahan Kimia Melalui Simbol Globally Harmonized System (GHS) dan Lembar Data Keselamatan (SDS) Pada Siswa Sekolah Menengah Atas Normah, Normah; Adhiyanti, Nurmalina; Yulianti, Dwi Hawa; Pertiwi, Geby Fajriah; Fazira, Yulin
Jurnal Abdimas Prakasa Dakara Vol. 4 No. 2 (2024): Pemberdayaan Masyarakat Melalui Pengembangan Kompetensi dan Literasi Praktis Be
Publisher : LPPM STKIP Kusuma Negara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37640/japd.v4i2.2114

Abstract

Program ini bertujuan untuk meningkatkan kesadaran siswa tentang bahaya bahan kimia melalui pengenalan simbol Global Harmonized System (GHS) dan Safety Data Sheet (SDS). Kegiatan ini menggunakan metode ceramah yang berlangsung selama 3 jam dan didukung dengan metode survei. Sasaran dalam program ini adalah siswa SMA LTI Indo Global Mandiri sebanyak 30 orang. Efektivitas sosialisasi dievaluasi menggunakan metode pretest dan posttest untuk mengukur peningkatan pengetahuan siswa sebelum dan sesudah sosialisasi. Hasil menunjukkan bahwa terjadi peningkatan yang signifikan, dengan rata-rata skor pretest sebesar 27,66% dan posttest sebesar 91,12%. Kesimpulannya, kegiatan ini sangat efektif dalam meningkatkan pengetahuan siswa terkait simbol GHS dan SDS serta kesadaran bahayanya bahan kimia.
Increasing Awareness of the Risks of Waste Cooking Oil (WCO) to Health and the Environment through Educational Training for the Community in Desa Sumber Rejo, Banyuasin Normah; Yulianti, Dwi Hawa; Sya'baniah, Nyimas Febrika; Adhiyanti, Nurmalina; Fazira, Yulin; Handani, Rika
Jurnal Abdimas Mandiri Vol. 9 No. 2
Publisher : UNIVERSITAS INDO GLOBAL MANDIRI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36982/jam.v9i2.5343

Abstract

The increasing consumption of cooking oil has led to a significant rise in waste cooking oil (WCO) production, posing serious health and environmental risks. Improper disposal of WCO contributes to water and soil pollution, while its repeated use in cooking has been linked to various health issues, including cardiovascular diseases and cancer. This community service programme aimed to raise awareness among housewives in Desa Sumber Rejo, Banyuasin, regarding the dangers of WCO through educational training. The study employed an interactive discussion approach, beginning with a questionnaire to assess participants' prior knowledge, followed by a socialisation session, and concluding with a post-test evaluation. The results revealed that approximately 80% of participants were unaware of WCO hazards before the training. However, post-training assessments showed a significant improvement in understanding, highlighting the effectiveness of targeted educational interventions. This programme underscores the importance of continuous awareness efforts and the promotion of sustainable WCO management practices, such as its potential repurposing into biodiesel or soap, to mitigate its negative impact on health and the environment.
Co-Authors Addy Rachmat Adelia, Ory Amelia, Icha Dedi Rohendi Fazira, Yulin Handani, Rika Nirwan Syarif, Nirwan Normah Normah Normah Normah, Normah Pertiwi, Geby Fajriah Sayeri, Rabellia Juladika Syabaniah, Nyimas Febrika Wijaya, Alfan Yulianti, Dwi Hawa