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All Journal QUANTUM: Jurnal Inovasi Pendidikan Sains CCIT (Creative Communication and Innovative Technology) Journal ICIT (Innovative Creative and Information Technology) Journal CICES (Cyberpreneurship Innovative and Creative Exact and Social Science) Journal Cerita: Creative Education of Research in Information Technology and Artificial Informatics Jurnal Akuntansi, Manajemen dan Ilmu Ekonomi (JASMIEN) Equilibrium Journal of Chemical Engineering IAIC Transactions on Sustainable Digital Innovation (ITSDI) Studia Ekonomika International Journal of Business, Marketing, Economics & Leadership International Journal of Business Law, Business Ethic, Business Communication & Green Economics (IJBGE) Academia Open
Ria Wulandari
STIE Kasih Bangsa
Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Law, Crime, Criminology & Criminal Justice Library & Information Science Materials Science & Nanotechnology Medicine & Pharmacology Physics Public Health

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PENGARUH MODEL PEMBELAJARAN BERBASIS MASALAH TERINTEGRASI MEDIA SIMULASI PHET TERHADAP KETERAMPILAN BERPIKIR KRITIS PESERTA DIDIK PADA MATERI PESAWAT SEDERHANA Laila Rohmawati; Ria Wulandari; Fitria Eka Wulandari
QUANTUM: Jurnal Inovasi Pendidikan Sains Vol 14, No 1 (2023): April 2023
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/quantum.v14i1.14458

Abstract

Penelitian ini bertujuan untuk mendeskripsikan keterlaksanaan model pembelajaran berbasis masalah terintegrasi media simulasi PhET pada materi pesawat sederhanadan mendeskripsikan pengaruh model pembelajaran berbasis masalah terintegrasi media simulasi PhET terhadap keterampilan berpikir kritis peserta didik pada materi pesawat sederhana. Metode penelitian yang digunakan adalah kuantitatif eksperimen dengan jenis penelitian quasi experimental design. Desain penelitian nonequivalent control group design. Teknik pengambilan sampel nonprobability sampling dengan jenis pengambilan sampel penelitian sampling purposive. Teknik analisis data menggunakan persentase ketelaksanaan pembelajaran dan uji-t independent sampel t-test. Instrumen penelitian yang digunakan berupa lembar pengamatan keterlaksanaan pembelajaran dan teknik tes. Hasil penelitian pada keterlaksanaan model pembelajaran berbasis masalah terintegrasi media simulasi PhET pada pertemuan pertama, kedua, dan ketiga memperoleh skor rata-rata berturut-turut yaitu 96,09%, 95,31% dan 96,09% dengan kategori sangat baik. Keterampilan berpikir kritis pada kelas eksperimen dan kontrol mengalami perubahan. Pada kelas eksperimen, rata-rata nilai posttest sebesar 68,00 berada pada kategori kritis. Sedangkan pada kelas kontrol, rata-rata nilai posttest sebesar 56,00 berada pada kategori cukup kritis. Kedua nilai ini lebih baik dibandingkan dengan nilai pretest. Pada hasil uji independent sample t test diperoleh nilai signifikansi sebesar 0.001 < 0.05. Dapat disimpulkan bahwa keterlaksanaan model pembelajaran berbasis masalah terintegrasi media simulasi PhET sebesar 95,83% dengan kategori sangat baik dan ada pengaruh model pembelajaran berbasis masalah terintegrasi media simulasi PhET terhadap keterampilan berpikir kritis peserta didik pada materi pesawat sederhana.
The Effect of HCl Activator on PET Adsorbent to Reduce Phosphate Content in Laundry Waste Rizky, Lutfi Wahidatur; Zulkarnain, Iskandar; Raharjo, Ismadi; Wulandari, Yeni Ria
Equilibrium Journal of Chemical Engineering Vol 8, No 1 (2024): Volume 8, No 1 July 2024
Publisher : Program studi Teknik Kimia UNS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/equilibrium.v8i1.84179

Abstract

Plastic waste is waste that cannot be decomposed so it will cause serious problems to the environment. The National Waste Management Information System (SIPSN) reported that in 2020 plastic waste was found to be 17.2% of the total waste collected. Several types of plastic can become porous charcoal through the heating process in a furnace so that it can be used as an adsorbent for liquid waste from the laundry industry. Laundry liquid waste containing excess phosphate will disrupt the environment such as eutrophication. This research aims to determine the effect of the HCl activator on carbon from polyethylene terephthalate (PET) plastic bottle waste to reduce phosphate levels in liquid laundry waste. This research uses varying concentrations of HCl as a carbon activator, namely 1M, 5M, and 10M. The activated carbon is added to the liquid laundry waste and stirred at a speed of 100 rpm. Phosphate content analysis was carried out using a spectrophotometer in liquid laundry waste before and after the adsorption process and BET (Brunauer-Emmet-Teller) analysis on activated carbon with activator HCl 10 M. The greatest decrease in phosphate levels was 10 M HCl concentration of 52.87%, with a carbon surface area of 203.1222 m²/g and a particle size of 29.53 nm. The adsorption capacity of activated carbon with a 10 M activator is 0.1499 mg/g. Keywords:PET, Adsorbent, HCl, Laundry Waste, Phosphate 
Co-Authors Achmad Rachmat Aditya Giyantono Agus Gunawan Astriyani, Erna Bobby Aditya Nugraha Citra Azizah Dani Ramadhan Dirham Fatra Fatra Dhamara Enik Setiyawati Erwansyah Erwansyah Fahreza, Rivaldy Rifki Firdausia Amanda Ari Octaviani Fitria Eka Wulandari Grace Yulianti Ifran Sanni Ilamsyah Ilamsyah, Ilamsyah Ismadi Raharjo, Ismadi Kofifah Silfanah Laila Rohmawati Machful Indra Kurniawan Mohammad Chaidir Naufal Fadhil Alwarits Ngadi Permana Noly Shofiyah Padeli Padeli Rikhatul Jannah Rizki Maulana Kamil Rizky, Lutfi Wahidatur Roudhlotul Karomah Selvi Agustina Siti Adira Salsabilla Rahma Siti Maesaroh Sugeng Santoso Tanti Sugiharti Yuni Roza Yuni Sara Zaelani, Naila