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All Journal JPPS (Jurnal Penelitian Pendidikan Sains) Inovasi Fisika Indonesia (IFI) Prosiding Seminar Nasional Unimus
MUNASIR MUNASIR
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Humanities Biochemistry, Genetics & Molecular Biology Chemistry Earth & Planetary Sciences Education Electrical & Electronics Engineering Engineering Health Professions Materials Science & Nanotechnology Nursing Physics Public Health

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NANOPARTIKEL Fe3O4@SiO2 UNTUK APLIKASI PENYERAP LOGAM Cu2+ DALAM AIR ARI MACHFIRO; MUNASIR MUNASIR
Inovasi Fisika Indonesia Vol 9 No 1 (2020)
Publisher : Jurusan Fisika FMIPA Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1018.371 KB) | DOI: 10.26740/ifi.v9n1.p5-8

Abstract

Abstrak Pada abad ini, air yang tercemar oleh logam berat adalah salah satu masalah lingkungan. Adsropsi merupakan metode yang paling effektif dan efisien. Metode adsropsi digunakan untuk mengetahui kapasitas adsorpsi, efisiensi adsorpsi dan konsentrasi sisa Tembaga (II) menggunakan hasil dari Voltammetry Cyclic. Hasil penelitian XRD dan FTIR Fe3O4@SiO2 menunjukkan bahwa Fe3O4 telah berhasil terlapisi oleh silika dan teridentifikasi gugus fungsi ikatan Fe-O-Fe dan ikatan Si-O-Si. Pengujian kapasitas adsorpsi dilakukan untuk efek massa adsorban, konsentrasi ion logam berat dan waktu kontak eksternal. Kapasitas adsorpsi menurun seiring dengan meningkatnya massa adsroben dan meningkat seiring dengan meningkatnya konsentrasi logam berat. Massa Fe3O4@SiO2 0,15 gram adalah massa paling baik untuk adsorpsi ion Cu2+ dengan kapasitas adsorpsi 2.4 mg/g. Kata kunci : Nanopartikel, logam berat, adsorpsi, kapasitas adsorpsi Abstract In this century, water that is polluted by heavy metals is one of the environmental problems. Adsorption is the most effective and efficient method. Adsorption method is used to determine the adsorption capacity, adsorption efficiency and concentration of Copper (II) residues using the results of Cyclic Voltammetry. The results of XRD and FTIR Fe3O4@SiO2 research showed that Fe3O4 was successfully coated with silica and identified the functional groups of Fe-O-Fe bonds and Si-O-Si bonds. Adsorption capacity testing is done for the effect of mass of adsorban, heavy metal ion concentration and external contact time. The adsorption capacity decreases with increasing mass of adsrobent and increases with increasing concentration of heavy metals. The mass of Fe3O4 @ SiO2 0.15 gram is the best mass for adsorption of Cu2+ ions with adsorption capacities of 2.4 mg / g. Keywords: Nanoparticles, heavy metals, adsorption, adsorption capacity
NANOPARTIKEL FE3O4/SIO2 BERBASIS BAHAN ALAM SEBAGAI MATERIAL PENGADSORPSI PEWARNA DALAM AIR ZUN WAHYU YULIANTI; MUNASIR MUNASIR
Inovasi Fisika Indonesia Vol 9 No 1 (2020)
Publisher : Jurusan Fisika FMIPA Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (545.161 KB) | DOI: 10.26740/ifi.v9n1.p1-4

Abstract

ABSTRAK Methylene blue merupakan senyawa organik non-biodegradable yang dapat menyebabkan pencemaran lingkungan terutama pencemaran air. Methylene blue merupakan pewarna sintetis yang memiliki gugus benzene dan sulit untuk didegradasi. Sehingga upaya yang bisa dilakukan untuk menghilangkan methylene blue dalam air yaitu menggunakan metode adsorpsi. Metode ini dilakukan dengan mensintesis Fe3O4/SiO2 sebagai absorben dengan metode in-situ, dimana Fe3O4 memiliki sifat kemagnetan yang dapat menghilangkan katalis dan limbah zat warna, sementara SiO2 memiliki sifat kompabilitas yang baik sebagai bahan pelapis magnetik. Nanokomposit Fe3O4/SiO2 sebelum diaplikasikans sebagai adsorpsi dikarakterisasi dengan uji XRD dan FTIR. Dari hasil XRD dapat deketaui pola difraksi nanokomposit Fe3O4/SiO2 bersesuaian dengan pola difraksi Fe3O4, sedangkan FTIR menunjukkan keberdaan SiO2. Pada hasil penelitian menunjukkan bahwa variasi konsentrasi larutan berpengaruh terhadap nilai kapasitas adsorpsi. Semakin besar konsentrasi larutan methylene blue maka nilai kapasitas adsorpsinya semakin besar yaitu 2,41 mg/g sedangkan nilai efisiensinya menurun yaitu 84%. Kata Kunci: Nanopartikel, Methylene blue, Kapasitas adsorpsi ABSTRACT Methylene blue is a non-biodegradable organic compound that can cause environmental pollution, especially water pollution. Methylene blue is a synthetic dye that has a benzene group and is difficult to degrade. So that efforts can be made to remove methylene blue in water using the adsorption method. This method is carried out by synthesizing Fe3O4/ SiO2 as absorbent by the in-situ method, where Fe3O4 has magnetic properties that can eliminate catalysts and dye waste, while SiO2 has good compatibility properties as a magnetic coating material. Fe3O4/SiO2 nanocomposites before being applied as adsorption were characterized by XRD and FTIR tests. From the XRD results, it can be determined that the Fe3O4/ SiO2 nanocomposite diffraction pattern corresponds to the Fe3O4 diffraction pattern, while the FTIR shows the presence of SiO2. The results showed that variations in the concentration of the solution affect the value of the adsorption capacity. The greater the concentration of the methylene blue solution, the greater the adsorption capacity value is 2.41 mg / g while the efficiency value decreases by 84%. Keywords: Nanoparticle, Methylene blue, Adsorption capacity
Nanokomposit Fe3O4/SiO2 sebagai Aplikasi Penyerap Asam Humat dalam Air TANTRIANA NUGROHO; MUNASIR MUNASIR
Inovasi Fisika Indonesia Vol 9 No 1 (2020)
Publisher : Jurusan Fisika FMIPA Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (694.753 KB) | DOI: 10.26740/ifi.v9n1.p20-23

Abstract

Abstrak Kebutuhan air untuk kehidupan manusia sangat tinggi, terutama untuk memenuhi permintaan pasokan air, seperti untuk air minum, memasak, mencuci, mandi, dan lain-lain. Campuran kompleks senyawa organik yang termasuk polutan organik adalah asam humat. Metode adsropsi digunakan untuk mengetahui kapasitas adsorpsi, efisiensi adsorpsi dan konsentrasi sisa asam humat menggunakan hasil dari UV-Vis. Hasil penelitian XRD dan FTIR nanokomposit Fe3O4/SiO2 menunjukkan bahwa Fe3O4 telah berhasil terlapisi oleh silika dan teridentifikasi gugus fungsi ikatan Fe-O-Fe dan ikatan Si-O-Si. Hasil uji UV-Vis menunjukkan bahwa nanokomposit Fe3O4/SiO2 dapat mengadsorpsi polutan organik yaitu asam humat. Massa yang paling baik digunakan adalah 0,05 gram dengan nilai kapasitas adsorpsi 0,280 mg/g. Kata kunci : Nanokomposit, asam humat, adsorpsi, kapasitas adsorpsi
THE EFFECT OF GUIDED-INQUIRY MODEL ON SCIENCE PROCESS SKILLS INDICATORS Arinta Rezty Wijayaningputri; Wahono Widodo; Munasir Munasir
JPPS (Jurnal Penelitian Pendidikan Sains) Vol. 8 No. 1 (2018)
Publisher : Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/jpps.v8n1.p%p

Abstract

The aims of this research is to know the effect of Guided-Inquiry model on the indicators of science process skills, especially on Vibration and Waves Material. This research is done because of the importance of mastering indicators to identify the variables for students in experimenting. The research design which applied in this study was One-group Pre-test Post-test on 90 students of SMAN 1 Pasuruan. Data analysis technical using N-gain. For Class XI IPA 1 has an average N-Gain was 0,44. Ro Class XI IPA 2 has an average N-Gain was 0,47. Meanwhile for Class XI IPA 3 has an average N-Gain was 0,48. N-Gain was calculated based of pre-test and post-test results using the Science Process Skills Test, the results showed that there was a significant improvement of the students' science-process skill indicator for all three classes with N-gain score was 0.49. So, Guided-Inquiry model provide a good effect on the science process skill indicator on Vibration and Waves Material
THE PRACTICALLITY OF PO2E2W LEARNING MATERIAL MODEL ASSISTED PHET MEDIA TO IMPROVE THE STUDENTS PHYSICS PROBLEM SOLVING SKILLS Agung Suci Dian Sari; Munasir Munasir; Budi Jatmiko
JPPS (Jurnal Penelitian Pendidikan Sains) Vol. 8 No. 1 (2018)
Publisher : Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/jpps.v8n1.p%p

Abstract

PO2E2W learning model (problem orientation, observation, explanation, elaboration, and write in science) assisted by PhET media is a learning model that is oriented towards self regulated learning which in the process of physics learning activities is carried out with the help of PhET media. The purpose of this study was to analyze the practicality of the PO2E2W model assisted by PhET media in improving the physics problem solving skills of high school students. This research was carried out at Kemala Bhayangkari 1 High School (Surabaya, Indonesia) for students of class XI IPA 1, XI IPA 2 and XI IPA 3. Criteria for practicality of learning devices in this study were based on (1) the implementation of the learning implementation plan (RPP) during one meeting in class XI IPA 1 and the implementation of the learning plan (RPP) for five meetings in class XI IPA 2 and XI IPA 3, (2) obstacles during learning activities. The number of observers in this study is two observers. The aspects observed consisted of introduction, core and closing activities. Based on the results of the practicality study of the PO2E2W model assisted by PhET media, the results obtained (1) the average assessment of two observers in class XI IPA 1 was 3.30 with good category with a percentage of agreement 96.75%, XI IPA 2 was 3.71 in very both with a percentage of agreement 95.84% and in class XI IPA 3 was 3.76 in very good category with a percentage of agreement 96.85% (2) obstacles during learning activities that can be overcome properly. Conclusion based on the results of the study of the freeness of the PO2E2W model assisted by PhET media is practically applied in learning to improve the physics problem solving skills of senior high school students.
Green Synthesis Nanopartikel TiO2 dari Ekstrak Daun Juwet (Syzygium cumini) sebagai Material Fotokatalitik : Removing IonPb dalam Air Limbah Industri Soffin Harjasa Setiawan Okto; Anis As’adah; Ariyanti Rasiana Putri; Mazaya Basmalah; Munasir Munasir
Prosiding Seminar Nasional Unimus Vol 5 (2022): Inovasi Riset dan Pengabdian Masyarakat Guna Menunjang Pencapaian Sustainable Developm
Publisher : Universitas Muhammadiyah Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Pencemaran air menjadi suatu permasalahan lingkungan yang mengkhawatirkan, salah satunya yaitu pencemaran air oleh unsur timbal (Pb) akibat limbah industri. Metode green synthesis digunakan untuk sintesis nanopartikel TiO2 berbahan dasar alami yaitu daun Juwet (Syzygium cumini). Fotokatalitik sebagai metode pengujian nanopartikel TiO2 digunakan untuk mengetahui kapasitas absorbansi dan konsentrasi sisa timbal (Pb) melalui hasil uji spektrofotometer UV-Vis dan AAS (Atomic Absorption Spectroscopy). Hasil karakterisasi XRD dari sintesis nanopartikel TiO2 menunjukkan bahwa sampel merupakan fasa tunggal TiO2 anatase dengan ukuran rata-rata kristalit sebesar 15,7 nm. Karakterisasi XRF menunjukkan kandungan tinggi unsur Ti dengan persentase senyawa TiO2 sebesar 98,21%. Karakterisasi spektrofotometer UV-Vis menunjukkan adanya strong peak pada panjang gelombang 412,5 nm dengan nilai absorbansi nanopartikel TiO2 sebesar 0,260, sehingga nilai energi gap pada sampel adalah 3,01 eV. Nanopartikel TiO2 dari ekstrak daun Juwetsebagai material fotokatalitik telah berhasil dibuat dan karakterisasi nanopartikel yang dimiliki telah diuji laboratorium dan memiliki hasil yang sesuai dengan nanopartikel TiO2, serta kemampuannya dalam aktivitas fotokatalitik untuk removing logam Pb pada air limbah mencapai 87%.Kata Kunci : Green synthesis, fotokatalitik, nanopartikel TiO2, absorbansi.
Co-Authors Agung Suci Dian Sari Anis As’adah ARI MACHFIRO Arinta Rezty Wijayaningputri Ariyanti Rasiana Putri Budi Jatmiko Mazaya Basmalah Soffin Harjasa Setiawan Okto TANTRIANA NUGROHO Wahono Widodo ZUN WAHYU YULIANTI