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Modification of Coal Fly Ash Waste into Manganese-Oxide-Coated-Zeolite (MOCZ) to Adsorb Heavy Metal Ions Ni2+ Saputro, Sulistyo; Mahardiani, Lina; Susilowati, Endang; Nurhayati, Nanik Dwi; Ciptonugroho, Wirawan; Windiasty, Ananda Dea; Prihantoro, Alita Selvi
Jurnal Kimia Valensi Jurnal Kimia VALENSI, Volume 10, No. 1, May 2024
Publisher : Syarif Hidayatullah State Islamic University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15408/jkv.v10i1.35794

Abstract

High consumption of coal as a source of electrical energy in Indonesia has resulted in piles of waste from coal burning, namely fly ash, which can damage the environment and harm health. Fly ash contains main oxides, namely silica (SiO2) and alumina (Al2O3), whose components are similar to zeolite, so they can be synthesized into zeolite-like material (ZLM) which can be used as an adsorbent for heavy metal Ni2+. Therefore, this research discussed the characterization of manganese-oxide-coated-zeolite (MOCZ) from fly ash waste as a heavy metal adsorbent. The research procedure consisted of preparation, purification, and activation stage of fly ash to obtain fly ash that is free from impurities, the stage of making sodium silicate and sodium aluminate, and zeolite synthesis. The resulting zeolite was then coated with manganese oxide to expand the surface area of the zeolite and increase the ability of zeolite to adsorb heavy metal Ni2+. The research results showed that fly ash waste that was coated with manganese oxide can adsorb heavy metal Ni2+. The adsorption of the Ni2+ metal ion solution by zeolite with MOCZ modification is in line with the pseudo-second-order kinetic and Langmuir isotherm.
Analysis of Chemistry Podcast Implementation in Learning Hydrocarbons and Petroleum for Inclusive Students Septianing, Pingki Wahyu; Saputro, Sulistyo; Mahardiani, Lina; Indriyanti, Nurma Yunita; Desti, Icha
JKPK (Jurnal Kimia dan Pendidikan Kimia) Vol 9, No 2 (2024): JKPK (Jurnal Kimia dan Pendidikan Kimia)
Publisher : Program Studi Pendidikan Kimia FKIP Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/jkpk.v9i2.88340

Abstract

This research aims to conduct a feasibility analysis of a chemistry podcast, referred to here as “PodChem,” and to examine the impact of PodChem on learning hydrocarbons and petroleum. This study employs a pre-experimental method. The podcast media were developed using Anchor software and evaluated through a survey using a podcast media assessment questionnaire. The evaluation was carried out by lecturers as validators and students as podcast users. The assessed aspects include content, functionality, and appearance as complementary media in learning hydrocarbons and petroleum. The results indicate that the chemistry podcast PodChem was successfully produced using Anchor software. The findings suggest that PodChem is valid and suitable for educational use. The audio quality produced using Anchor is clear, and its accessibility is broad. Additionally, students reported that the content is relevant and enhances their understanding of the subject matter. Most students also found the podcast to be easily accessible and effective in conveying the concept. In terms of appearance, students agreed that the podcast title is engaging, the delivery is captivating, and the duration is appropriate. The implementation of PodChem in chemistry learning received positive feedback from students, with the majority accepting the use of podcast media in the classroom. Furthermore, 88.9% of respondents expressed a desire for podcasts to be used as complementary media in future learning, as they found podcasts to be more interesting, insightful, and easy to understand. These conclusions are supported by the results of student questionnaires and the assessment of assignments conducted by teachers in class.
Modification of Polyethylene Glycol and Citric Acid on Palm Fiber Waste Nanofibers on the Adsorption of Violet Crystal Dyes Mahardiani, Lina; Damayanti, Nida; Maharani, Rizki Deva; Saputro, Sulistyo; Susilowati, Endang; Ciptonugroho, Wirawan; Nurhayati, Nanik Dwi
JKPK (Jurnal Kimia dan Pendidikan Kimia) Vol 8, No 3 (2023): JKPK (Jurnal Kimia dan Pendidikan Kimia)
Publisher : Program Studi Pendidikan Kimia FKIP Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/jkpk.v8i3.80105

Abstract

This study developed nanofibers derived from sugar palm fiber waste, incorporating citric acid and polyethylene glycol (PEG) modifications to adsorb crystal violet (CV) dye. The synthesis process involved alkalization-acid hydrolysis and bleaching techniques. Subsequent analyses of nanofiber characteristics were conducted using Fourier-Transform Infrared Spectroscopy (FTIR), X-ray Diffraction (XRD), and Scanning Electron Microscopy-Energy Dispersive X-ray (SEM-EDX). The efficacy of these modified nanofibers in adsorbing CV was quantitatively measured using an Ultraviolet-Visible (UV-Vis) spectrophotometer. The study successfully synthesized nanofibers from sugar palm fiber waste with modifications: PEG-modified nanofibers (NP 2 and NP 24) and citric acid-modified nanofibers (NS 2 and NS 24). These modifications resulted in nanofibers with a smooth, white texture. FTIR analysis of the samples (N, NP 2, NP 24, NS 2, and NS 24) revealed the presence of functional groups essential for cellulose, specifically -OH, C-H, and C-O groups. The addition of citric acid introduced a new group, C=O, albeit with very weak intensity. PEG modifications were evident from the stretching observed in the -OH groups. SEM analysis confirmed the presence of a layer on the nanofibers, attributed to citric acid (NS 2 and NS 24) and PEG (NP 2 and NP 24). XRD results indicated that the pre-and post-modification nanofibers exhibited a semi-crystalline phase. The adsorption mechanism was predominantly guided by Van der Waals electrostatic interactions between the absorbent material and the adsorbate. Intriguingly, the citric acid and PEG modifications did not significantly alter the adsorption outcomes. The adsorption capacity remained stable over time, as evidenced by measurements of 0, 15, 30, 45, 60, 90, and 120 minutes.
Low Carbon Virtual Lab (LCVL) on electricity to empower sustainability literacy of junior high school students Nisa', Salsabila Kholifahtun; Hudha, Muhammad Nur; Indriyanti, Nurma Yunita; Probosari, Riezky Maya; Mahardiani, Lina; Gunawan, Kadek Dwi Hendratma
Momentum: Physics Education Journal Vol. 9 No. 1 (2025)
Publisher : Universitas PGRI Kanjuruhan Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21067/mpej.v9i1.11178

Abstract

Electricity is a conceptual and complicated physics subject, hence technological integration is required to help understanding. Using the ADDIE development research approach, this study will investigate how the design, practicality, and characteristics of Low Carbon Virtual Lab (LCVL) media might empower students' sustainability literacy. The LCVL was built using low carbon education values and sustainability literacy indicators to test student abilities through quizzes and discussion topics. The feasibility of LCVL was rated as very good. Material experts scored 96.59%, media experts scored 86.98%, and language experts scored 95.60% (very feasible). The teacher and student response test to LCVL also yielded an overall average, with student responses of 91% and instructor responses of 82.41%. LCVL possesses the following characteristics: (1) an interactive digital simulation media, (2) packed in the form of a website link, (3) user-friendly, (4) utilized to empower students' sustainability literacy, and (5) the concept of electrical material supplied is combined with low carbon education. Thus, LCVL is appropriate for use in the learning process to improve students' sustainability literacy.
Improving Students Learning Outcomes and Digital Literacy on Acid-Base Titration Using Titration Screen Experiment Media Sri Mulyani; Rakhma Amalia Nurdina; Lina Mahardiani
International Journal of Pedagogy and Teacher Education Vol 7, No 1 (2023): International Journal of Pedagogy and Teacher Education - April
Publisher : The Faculty of Teacher Training and Education (FKIP), Universitas Sebelas Maret, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/ijpte.v0i0.72051

Abstract

This study aims to enhance students' digital literacy and learning outcomes in acid-base titration through Titration Screen Experiment Media. The research used a quasi-experimental method with two class samples, including the experimental class utilizing Titration Screen Experiment Media and the control class without it. Data were collected through digital literacy questionnaires and post-test questions evaluating students’ cognitive domain knowledge in acid-base titration. The Multivariate Analysis of Variance (MANOVA) test was used to analyze the data. The results demonstrated that the experimental class, which utilized the Titration Screen Experiment Media, exhibited higher digital literacy levels than the control class and improved learning outcomes in acid-base titration. The average digital literacy score in the experimental class was 56.50, whereas the control class scored 41.70. The experimental class indicated students with intermediate cognitive domain learning outcomes around 84.00, while the control class scored 76.67. These findings suggest that implementing the Titration Screen Experiment Media enhances digital literacy and positively impacts students’ learning outcomes in acid-base titration. Educators can effectively improve students' digital literacy skills by integrating this innovative media into teaching and learning while encouraging their academic achievements in chemistry learning. The research emphasizes the significance of digital literacy in modern education. The practical implication lies in the roles of educators in preparing students’ chemistry digital literacy.
Research trends of creative thinking skill in science education journals in Indonesia: Design analysis and data analysis techniques Pratama, Ferry Yudha; Mahardiani, Lina; Bramastia, Bramastia
Journal of Environment and Sustainability Education Vol. 3 No. 1 (2025)
Publisher : Education and Development Research

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62672/joease.v3i1.66

Abstract

Creative thinking as one of the 21st skills is not only beneficial but also essential, particularly in learning sciences. Creative thinking equips them with the cognitive flexibility to devise innovative solutions, consider multiple variables, and approach challenges from diverse angles, fosters critical reasoning and imagination, and enhances student motivation and engagement within science classrooms. This paper will focus on investigating the implementation of creative thinking in learning sciences based on the articles published in national accreditation journals in Indonesia. The content analysis approach was applied, leveraging the method of scanning published research journal documents as its research method. This study is distinctive from previous research on creative thinking skills in several ways covered on all educational articles published from 2015 to 2024 in all Indonesian science education journals. This study revealed that in the last three years, the number of publications focusing on creative thinking skills has increased. The most dominant research is quantitative research with quasi experiment as the research design. Meanwhile, junior high school students, and 'biology' with the subject material of 'environmental pollution' were consecutively the subjects, science fields of study, and topics most chosen by researchers. Project Based Learning (PjBL), test sheet, and N-gain were the most frequently used as treatments, instruments, and data analysis methods, respectively. The review highlights the need to increase the use of qualitative and mixed-method approaches, explore the integration of local wisdom and ethnoscience through R&D, and focus on developing instructional products to enhance students’ low creative thinking abilities. Additionally, researchers are advised to clearly report their research instruments, including validity and reliability, and to select data analysis techniques that align with their research objectives and design.
Development of the climate change investigation (CCI) module to empowering sustainability literacy and global diversity in junior high school students Buana, Contias Edar; Nurhudha, Muhammad; Gunawan, Kadek Dwi Hendratma; Indriyanti, Nurma Yunita; Probosari, Riezky Maya; Mahardiani, Lina
Journal of Advanced Sciences and Mathematics Education Vol 5, No 1 (2025): Journal of Advanced Sciences and Mathematics Education
Publisher : CV. FOUNDAE

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58524/jasme.v5i1.708

Abstract

Background: Environmental issues are integral to science education, addressing the causes, impacts, and prevention of environmental damage. Investigative learning is essential to help students better understand these complex topics.Aim: This study aimed to determine the characteristics and feasibility of the Climate Change Investigation (CCI) module in empowering students’ sustainability literacy and global diversity.Method: The research employed a Research and Development (RD) approach using the ADDIE model, which consists of five stages: Analysis, Design, Development, Implementation, and Evaluation. Data collection included expert validation and student-teacher response questionnaires.Results: The findings showed that the CCI module is an effective and engaging tool for enhancing students’ understanding of environmental issues and cultural awareness. The module also benefits teachers by introducing interactive, low-carbon, and sustainability-based learning media. Validation scores from material, media, and language experts confirmed its high feasibility. Student and teacher responses indicated a high level of satisfaction with the module's clarity, content, and relevance.Conclusion. The CCI module enables students to understand various causes and impacts of environmental degradation, recognize the regional variations in climate effects, appreciate the role of biodiversity, evaluate the influence of eco-friendly technologies, and participate actively in discussions. The module supports independent learning and contributes to shaping environmentally and culturally conscious students aligned with 21st-century educational goals.
STUDI ANALISIS PENGEMBANGAN E-MODULE PJBL TERINTEGRASI TPACK TERHADAP KEMAMPUAN LITERASI DIGITAL DAN KETERAMPILAN BERPIKIR KREATIF CALON GURU SD Pratama, Ferry Yudha; Mahardiani, Lina; Bramastia, Bramastia
Proceeding Seminar Nasional IPA 2025
Publisher : LPPM UNNES

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

Abstract

Penelitian ini bertujuan untuk mendeskripsikan hasil analisis awal kesenjangan antara teoritis dengan faktual terkait kemampuan guru di Sekolah Dasar dan analisis kebutuhan mengembangkan e-module berbasis Project-Based Learning (PjBL) yang mengintegrasikan pendekatan Technological Pedagogical Content Knowledge (TPACK) terhadap kemampuan literasi digital dan keterampilan berpikir kreatif calon guru Sekolah Dasar (SD). Penelitian ini merupakan penelitian Research and Development (R&D) dengan studi analisis pada tahap awal model ADDIE. Data dikumpulkan melalui wawancara, observasi, dan penyebaran kuesioner kepada 30 calon guru SD dan 3 dosen pengampu mata kuliah “Pengembangan Pembelajaran IPA SD”. Data yang didapatkan dianalisis menggunakan analisis deskriptif kualitatif. Hasil analisis menunjukkan bahwa pada indikator validasi kesenjangan kinerja, 53,33% responden masih kurang kemampuan literasi digital dan 56,66% calon guru SD memiliki keterampilan berpikir kreatif yang masih rendah, model perkuliahan yang sering digunakan 66,67% PBL dan 27,78% PjBL serta sisanya model lainnya. Pada indikator tujuan instruksional, 38,46% responden menyatakan video interaktif sebagai preferensi media pembelajaran dan diikuti 30,77% e-module sisanya adalah model dan strategi pembelajaran lainnya. Selain itu, 100% responden merasa perlu pengembangan media pembelajaran berupa e-module PjBl terintegrasi TPACK untuk memberdayakan literasi digital dan keterampilan berpikir kreatif. Secara analisis karakteristik SDM calon guru SD sudah mengenal berbagai macam teknologi, namun belum memahami secara maksimal dalam penggunaannya sesuai kebutuhan dalam menunjang literasi digital. Calon guru SD dengan rasa ingin tahu dan kemampuan yang lebih adaptif terhadap perkembangan teknologi menjadi keunggulan dalam menerima pengetahuan baru untuk diaplikasikan. Analisis sumber daya yang tersedia menunjukkan dalam hal konten, lebih dari 60% responden berpendapat bahwa tahapan literasi digital dan keterampilan berpikir kreatif telah diterapkan melalui metode atau media tetapi belum secara spesifik dan menyeluruh. Namun, di setiap awal perkuliahan para dosen telah tertib dalam menyampaikan RPS. Sedangkan pada aspek teknologi, seluruh responden (100%) menyatakan seluruh perkuliahan telah dilengkapi dengan sistem jaringan internet, dan ruang perkuliahan nyaman karena dapat menampung 30 – 40 mahasiswa pada aspek fasilitas instruksional. Temuan ini memberikan rekomendasi bagi peneliti untuk melanjutkan penelitian dalam mengembangkan media pembelajaran berupa e-module PjBL terintegrasi TPACK untuk memberdayakan kemampuan literasi digital dan keterampilan berpikir kreatif calon guru Sekolah Dasar (SD).
Global Diversity and Academic Outcomes in Culturally Responsive Transformative Teaching Rasyada, Ahyana; Mahardiani, Lina; Fakhrudin, Isma Aziz; Rahmawati , Raisya
Jurnal Inovasi Pendidikan IPA Vol. 11 No. 2: October 2025
Publisher : Faculty of Mathematics and Natural Sciences, Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/jipi.v11i2.75362

Abstract

This research aims to reveal the effect of applying the Culturally Responsive Transformative Teaching (CRTT) learning model on students’ global diversity character and learning achievement in the cognitive domain of science learning. This study employs a quasi-experimental design with a pretest-posttest control group. The experimental class in this research employed the CRTT learning model, while the control class utilized the discovery learning model. The population consists of class VIII students from State Junior High School (SMPN) 2 Karanganyar for the 2023/2024 academic year, comprising nine classes. Meanwhile, the research sample was selected using a cluster random sampling technique, with Class VIII B as the experimental class and Class VIII A as the control class. The research data were collected through a test, surveys, observations, and interviews. The survey data test results using the Independent T-test showed a sig value. (2-tailed) = 0.018 < 0.05. The N-gain test results from students' cognitive assessment data showed that the N-gain value for the experimental class (0.870) was greater than that for the control class (0.364). This indicates that the application of the CRTT learning model affects students’ global diversity character and learning achievement in science.
Effectiveness of Ethno-STEM-Based Science Teaching with the Project-Based Learning Model on Students' Scientific Literacy Imron, Erlambang Muhammad; Asri Nugraheni, Febriani Sarwendah; Utami, Budi; Nursalsabila, Zamzami; Mahardiani, Lina; Bramastia; Tanghal, Analiza B.
Jurnal Inovasi Pendidikan IPA Vol. 11 No. 2: October 2025
Publisher : Faculty of Mathematics and Natural Sciences, Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/jipi.v11i2.78952

Abstract

The results of the OECD in 2019 showed that in 2012-2018, the acquisition of scientific literacy in Indonesia was still relatively low compared to other countries. The pretest results also showed that the average value of students' scientific literacy was 65 out of 100. Learning based on empowering thinking skills and using the context frequently encountered by students can help students relate scientific knowledge to everyday life, particularly in the aspect of interpreting data and evidence scientifically. From these problems, the study aims to (1) reveal the effect of ethno-STEM-based science teaching based on drums on vibration and wave material on the scientific literacy of junior high school students, and (2) identify the scientific literacy profile of junior high school students in Surakarta based on measurements using scientific literacy question instruments on vibration and wave material. This study was quasi-experimental. The population was all eighth-grade students from three junior high schools in Surakarta, totaling 864 students. The sample consisted of two classes from each school, selected as experimental classes and six control classes, determined using a cluster random sampling method. Data was collected using a science literacy test. The results showed: (1) there was an effect of the ethno-STEM approach with the PJBL learning model on students' scientific literacy in junior high school science learning on vibrations and waves, tested using the ANCVA test with a significance level of 0.047, and (2) in the experimental classes at junior high schools A, B, and C, there was an increase in all aspects of scientific literacy. In the control class, the highest increase was observed in the aspect of evaluating scientific investigations, while the lowest increase was noted in the aspect of explaining phenomena scientifically