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All Journal Hydrogen: Jurnal Kependidikan Kimia Jurnal Abdimas Peradaban
Tiyas, Windi Pangesti Kusumaning
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Chemistry Education Social Sciences

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Colorimetric Sensor of Hg(II) Ion from AgNPs-MO Quantified Using DIC with ED Equation Approach Thohir, Muhammad Bakhru; Tiyas, Windi Pangesti Kusumaning
Hydrogen: Jurnal Kependidikan Kimia Vol 12, No 6 (2024): December 2024
Publisher : Universitas Pendidikan Mandalika

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/hjkk.v12i6.13772

Abstract

Mercury is one of the heavy metals that has high toxicity, not only for the environment but also for human health. Mercury is found in many cosmetic products; unfortunately, for people who do not understand the dangers of mercury cosmetic ingredients, their skin will become red rashes. The novelty of this article is to use colorimetric sensor for mercury combined with Digital Image Colorimetry (DIC). The image is captured with the the smartphone camera and quantified using the Euclidean Distance (ED) Equation approach. In addition, the synthesized AgNPs also use the green synthesis method with natural materials as reducing agents and stabilizers. Therefore, the purpose of this study is to determine the best synthesis conditions and determine the detection performance of mercury (II) ions. The research began with the synthesis of mercury detection substances, namely silver nanoparticles reduced and stabilized by Moringa oleifera leaf extract (AgNPs-MO). In this study, it was found that silver nanoparticles began to form at 1 hour accompanied by heating at 120°C using a hotplate, while 6 hours when without heating. The optimum pH condition is 10. This mercury detection method has good sensitivity and accuracy values, with RSD values of less than 1% for each analyte in 5 repetitions.
Pelatihan Pemanfaatan Limbah Tongkol Jagung Menjadi Hand Sanitizer di Desa Kawengan Fajarwati, Novia; Rohsaita, Amalia; Tiyas, Windi Pangesti Kusumaning; Anisa, Zuffa
Jurnal Abdimas Peradaban Vol. 3 No. 2 (2022): Jurnal Abdimas Peradaban
Publisher : Global Writing Academica Researching and Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54783/180a3m29

Abstract

Desa Kawengan merupakan salah satu desa yang ada di Kecamatan Kedewan, Kabupaten Bojonegoro. Desa ini memiliki hasil pertanian yang melimpah terutama tanaman jagung. Hal ini tentunya berpengaruh terhadap hasil limbah jagung yang dihasilkan, khususnya tongkol jagung. Namun, pemanfaatan tongkol jagung di Desa Kawengan belum maksimal. Tongkol jagung di desa ini menjadi perhatian khusus bagi warga karena mampu menimbulkan berbagai dampak yang merugikan kehidupan. Tongkol jagung memiliki kandungan selulosa, hemiselulosa, dan lignin yang lebih tinggi dibandingkan dengan limbah jagung lain sehingga lebih berpotensi digunakan sebagai bahan baku bioetanol. Bioetanol yang didapatkan selanjutnya akan dimanfaatkan untuk hand sanitizer. Oleh karena itu, dilakukan pelatihan pemanfaatan limbah tongkol jagung menjadi hand sanitizer kepada Tim Pelaksana Inovasi Desa (TPID) Kawengan untuk mengatasi permasalahan limbah tongkol jagung di Desa Kawengan. Pelatihan ini menggunakan metode Learning Deeply, yaitu dengan melakukan evaluasi setiap kali kegiatan selesai dilakukan dan berhasil meningkatkan pemahaman warga Desa Kawengan.
Colorimetric Sensor of Hg(II) Ion from AgNPs-MO Quantified Using DIC with ED Equation Approach Thohir, Muhammad Bakhru; Tiyas, Windi Pangesti Kusumaning
Hydrogen: Jurnal Kependidikan Kimia Vol. 12 No. 6 (2024): December 2024
Publisher : Universitas Pendidikan Mandalika

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/hjkk.v12i6.13772

Abstract

Mercury is one of the heavy metals that has high toxicity, not only for the environment but also for human health. Mercury is found in many cosmetic products; unfortunately, for people who do not understand the dangers of mercury cosmetic ingredients, their skin will become red rashes. The novelty of this article is to use colorimetric sensor for mercury combined with Digital Image Colorimetry (DIC). The image is captured with the the smartphone camera and quantified using the Euclidean Distance (ED) Equation approach. In addition, the synthesized AgNPs also use the green synthesis method with natural materials as reducing agents and stabilizers. Therefore, the purpose of this study is to determine the best synthesis conditions and determine the detection performance of mercury (II) ions. The research began with the synthesis of mercury detection substances, namely silver nanoparticles reduced and stabilized by Moringa oleifera leaf extract (AgNPs-MO). In this study, it was found that silver nanoparticles began to form at 1 hour accompanied by heating at 120°C using a hotplate, while 6 hours when without heating. The optimum pH condition is 10. This mercury detection method has good sensitivity and accuracy values, with RSD values of less than 1% for each analyte in 5 repetitions.
Co-Authors Novia Fajarwati, Novia Rohsaita, Amalia Thohir, Muhammad Bakhru