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Journal of Chemical Learning Innovation
Published by Cahaya Ilmu Cendekia Publisher
ISSN : 30631629     EISSN : 30630886     DOI : https://doi.org/10.37251/jocli
Core Subject : Science, Education, Social,
Chemistry Education Social Sciences Other
Journal of Chemical Learning Innovation is a double-blind peer-reviewed journal dedicated to disseminating advances in science and research in chemistry, both in Indonesia and in the global context of developing countries. Committed to achieving excellence, Jurnal Inovasi Pembelajaran Kimia publishes comprehensive research articles and invited reviews from leading experts in the fields of chemistry education and chemistry research. The selection criteria prioritize papers that demonstrate high scientific value, convey new knowledge, and have a significant impact on chemistry education and research. The journal focuses on evaluation, chemistry teaching and learning, pure chemistry research, EthnoChemistry, TIMSS Tasks, and related topics at the school and college levels.
Arjuna Subject : Umum - Umum
Articles 58 Documents
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The Use of Flash Media as an Innovation in Chemistry Learning to Improve Student Learning Achievement in Atomic Structure Material I Made Krisna Budi; Ni Nyoman Nuryani
Journal of Chemical Learning Innovation Vol. 1 No. 2 (2024): December
Publisher : Cahaya Ilmu Cendekia Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37251/jocli.v1i2.2997

Abstract

Purpose of the study: This study aims to determine the effect of using Flash-based learning media on students’ learning achievement in chemistry, specifically on the topic of atomic structure, compared to conventional teaching methods. Methodology: This study employed a quasi-experimental design using a pretest-posttest control group design. The instrument used was a multiple-choice test consisting of 20 items. Data were collected through pretest and posttest. Data analysis included validity and reliability testing, homogeneity test using F-test, and hypothesis testing using t-test with pooled variance. Main Findings: The results showed that students taught using Flash media achieved higher learning outcomes compared to those taught using conventional methods. The experimental group demonstrated better average scores and higher classical completeness. Statistical analysis indicated a significant difference between both groups, confirming that Flash media positively affects students’ achievement in atomic structure learning. Novelty/Originality of this study: This study introduces the application of specifically designed Flash media for atomic structure learning, integrating interactive animation and conceptual visualization. It provides empirical evidence of its effectiveness, offering a more focused approach compared to previous general multimedia studies and contributing to innovation in chemistry learning media development.
Lampung Natural Zeolite as a Green Solution: Heavy Metal Waste Treatment through Flotation-Filtration Method Asep Setiawan
Journal of Chemical Learning Innovation Vol. 1 No. 2 (2024): December
Publisher : Cahaya Ilmu Cendekia Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37251/jocli.v1i2.2999

Abstract

Purpose of the study: This study aims to evaluate and compare the effectiveness of flotation, filtration, and combined flotation–filtration processes in removing iron (Fe) and reducing Chemical Oxygen Demand (COD) from synthetic wastewater. Methodology: This study employed flotation, filtration, and combined flotation–filtration methods using a ceramic membrane filtration unit, vacuum pump, air–ozone generator, and synthetic wastewater containing Fe, zeolite, Sodium Lauryl Sulfate (SLS), and Poly-Aluminum Chloride (PAC). Data were analyzed using concentration measurement and percentage removal efficiency calculations. Main Findings: The combined flotation–filtration process showed the highest performance, achieving Fe removal efficiency of 94.74% with final concentration of 5.26 mg/L. Filtration and flotation showed lower efficiencies. COD reduction was more stable in filtration but more effective initially in flotation–filtration. Membrane fouling was lower in flotation–filtration, resulting in higher permeate volume compared to filtration alone. Novelty/Originality of this study: This study presents a simultaneous flotation–filtration system integrated with air–ozone injection to enhance pollutant removal and reduce membrane fouling. It highlights the dual role of air–ozone as an oxidizing and cleaning agent, offering improved efficiency and membrane durability compared to conventional single-process methods.
Exploration of the Structure and Composition of Sn(S₀.₆Te₀.₄) Thin Film as a Potential Absorber in Solar Cell Technology Mahmudah Setianingrum; Guluzra Bozorboeva
Journal of Chemical Learning Innovation Vol. 1 No. 2 (2024): December
Publisher : Cahaya Ilmu Cendekia Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37251/jocli.v1i2.3001

Abstract

Purpose of the study: This study aims to synthesize and characterize Sn(S₀.₆Te₀.₄) thin films using vacuum evaporation and to analyze their crystal structure and chemical composition in order to evaluate their potential as absorber materials for solar cell applications. Methodology: Vacuum evaporation system with rotary and diffusion pumps, substrate heater, Penning manometer, thermocouple, furnace, digital balance, and multimeter were used. Structural analysis employed X-Ray Diffraction (Miniflex 600 Rigaku, Cu source). Surface morphology and composition were analyzed using Scanning Electron Microscopy (SEM) and Energy Dispersive Spectroscopy (EDS). Data processed using Origin and PCPDFWIN software. Main Findings: Sn(S₀.₆Te₀.₄) thin films were successfully deposited at 250°C, 300°C, and 350°C. XRD results show increased diffraction peak intensity with higher temperature, indicating improved crystallinity, with optimum at 350°C. The structure approaches orthorhombic SnS. EDS confirms presence of Sn, S, and Te with composition close to theoretical values but slightly deviated due to non-stoichiometric effects. Novelty/Originality of this study: This study explores a specific composition of Sn(S₀.₆Te₀.₄) thin film using vacuum evaporation and simultaneously analyzes its crystal structure and chemical composition. It provides new insight into the relationship between temperature, crystallinity, and composition, contributing to the development of alternative absorber materials for solar cell technology.
Strengthening Chemistry Learning Outcomes through Discovery Learning and Laboratory Activities on Colloidal Systems Material Hilmina Hilmina; Abu Ahmad
Journal of Chemical Learning Innovation Vol. 1 No. 2 (2024): December
Publisher : Cahaya Ilmu Cendekia Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37251/jocli.v1i2.3026

Abstract

Purpose of the study: This research aims to improve students' chemistry learning outcomes using the discovery method through laboratory activities on the concept of colloidal systems. Methodology: The method used in this study was classroom action research with a sample of 33 students taught using the discovery method through laboratory activities. The classroom action research consisted of two research cycles, each with stages including planning, implementation, observation, and reflection. The research instruments used were observation sheets, questionnaires, learning outcome tests, and teacher and student interviews. Main Findings: From the results of this thesis research, it is obtained an overview that this research has achieved the criteria that have become the limit of success indicators shown through the increase in the category of aspects of active student participation in learning in each cycle. Likewise, the learning outcome test saw an increase in the average score in cycle I of 68.09 increasing to 74.81 and no more students received a score below 60.00. Similarly, the results of student interviews responded positively to the learning process using the discovery method through laboratory activities. Novelty/Originality of this study: This research offers novelty through the integration of discovery learning methods with structured laboratory activities on the concept of colloidal systems to improve student learning outcomes. This approach emphasizes active student engagement through experimentation and problem-solving. These findings complement previous studies by demonstrating the effectiveness of the combination of inquiry learning and practicum in improving conceptual understanding and student participation.
Chemistry Learning Media Innovation: Interactive Website Development for Buffer Solution Material Fina Fastaqima; Maria Sundus
Journal of Chemical Learning Innovation Vol. 1 No. 2 (2024): December
Publisher : Cahaya Ilmu Cendekia Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37251/jocli.v1i2.3038

Abstract

Purpose of the study: To determine the feasibility of website-based buffer solution learning media as a learning resource for class XI students at State Senior High School 13 Semarang. Methodology: This study used the Research and Development method, with the Thiagarajan model, which includes defining, designing, and developing. The feasibility of the learning media was based on the assessment results of media experts, material experts, high school chemistry educators, and student responses to the website-based learning media. Main Findings: The assessment results from material experts were 66.67%, categorized as good. The assessment results from media experts were 86.1%, categorized as very good. The assessment results from high school chemistry educators were 79.1%, categorized as good. The results from the student response questionnaire were 76.67%, categorized as good. Based on these results, it can be concluded that website-based learning media is suitable for use as a learning resource for students. Novelty/Originality of this study: This study presents the development of a website-based chemistry learning medium specifically designed for the topic of buffer solutions, integrating interactive features and self-paced learning components. Unlike previous studies, this study emphasizes accessibility and conceptual understanding through a digital platform. This research advances existing knowledge by providing an innovative and validated learning resource that supports flexible learning and enhances student engagement and understanding in chemistry education.
Preliminary Study on Laccase-Catalyzed Oxidative Transformation of Anethole: Evidence from GC-MS Analysis Siti Zainatur Rahmah; Wimonnan Pongpatrakant
Journal of Chemical Learning Innovation Vol. 1 No. 2 (2024): December
Publisher : Cahaya Ilmu Cendekia Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37251/jocli.v1i2.3053

Abstract

Purpose of the study: This research was conducted with the aim of synthesizing anethole dimers using the laccase enzyme biocatalyst. Methodology: In this study, anise oil containing 90% anethole, laccase enzyme as a biocatalyst, and hydroquinone as a mediator were used. The laccase enzyme used was isolated from white oyster mushroom (Pleurotus ostreatus) which has an activity of 712.758 U/L. The anethole dimer formation reaction was carried out in a biphasic medium (ethyl acetate: phosphate buffer = 4:1) which was carried out for 24 hours and 48 hours. The reaction results were then extracted with ethyl acetate and produced a thick brownish liquid with a more intense color intensity in the 48-hour reaction. Main Findings: Comparison of the GC test results on anise oil, 24-hour reaction, and 48-hour reaction showed an increase in peaks and changes in peak height in the 48-hour reaction. Anethole and p-anisaldehyde compounds had a smaller % area than in the 24-hour reaction. It is suspected that the 48-hour reaction produced a new compound derived from the oxidation reaction, namely caryophyllene oxide, but the compound that is the anethole dimer has not been identified. Novelty/Originality of this study: This study introduces a biocatalytic approach for anethole transformation using laccase from Pleurotus ostreatus, integrating mechanistic insights with product characterization. It reveals the limited reactivity of anethole under laccase catalysis while identifying alternative oxidation pathways, such as caryophyllene oxide formation. These findings advance understanding of substrate specificity and expand knowledge of laccase-mediated transformations in non-phenolic systems.
Improving the Quality of Colloidal System Learning through Lesson Study with Inquiry-Based Experimental Methods Umi Wandansari; Indhie Nirvana; Neelam Sharma
Journal of Chemical Learning Innovation Vol. 1 No. 2 (2024): December
Publisher : Cahaya Ilmu Cendekia Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37251/jocli.v1i2.3066

Abstract

Purpose of the study: The purpose of this study is to determine the lesson study learning process using the guided inquiry-based experimental method on the main material of colloidal systems at Madrasah Aliyah Darut Taqwa. Methodology: This study employed a descriptive qualitative method with a lesson study approach (plan–do–see cycle). Instruments included observation sheets (Likert scale 1–5), interview guides, and documentation checklists. Data were collected through observation, semi-structured interviews, and document review. Data analysis used the Miles and Huberman model. Data processing utilized Microsoft Excel. Main Findings: The results of this study indicate that lesson study activities involve three stages: planning (Plan), implementation (Do), and reflection (See). Prior to this activity, initial observations were conducted to compare the pre-lesson and post-lesson study sessions. As a result, teachers' ability to manage learning improved. For example, the ability to guide problem formulation increased from 41.25% to 53.75%. Improvements also occurred in the ability to conduct experiments, analyze and present results, and communicate. Based on these data, lesson study activities can improve the quality of learning. Novelty/Originality of this study: This study introduces an integrated implementation of lesson study with guided inquiry-based experimental methods specifically applied to colloidal system learning. It advances existing knowledge by emphasizing collaborative teacher development alongside student-centered inquiry processes. The study provides new insights into how iterative lesson study cycles enhance instructional quality, teacher competence, and active student engagement in chemistry learning contexts.
Game-Based Learning in Chemistry: Development of “Win Redox” Media on Reduction and Oxidation Reactions Siti Safitriyani; Anisah Tjakrawati
Journal of Chemical Learning Innovation Vol. 1 No. 2 (2024): December
Publisher : Cahaya Ilmu Cendekia Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37251/jocli.v1i2.3069

Abstract

Purpose of the study: This study aims to determine the feasibility of chemistry learning media on the main material of the concept of reduction and oxidation reactions. Methodology: This study uses the Research and Development development method, with the Sugiyono model which includes potential problems, information gathering, product design, design validation, design revision, product trial, product revision, product. Interactive game-based learning media named the win redox game contains material on the concept of reduction and oxidation reactions. The feasibility test of the win redox game is based on the learning outcomes and understanding of Class X students of Madrasah Aliyah Negeri 2 Semarang who have helped in the use of the win redox game and provided feedback on the game. Main Findings: The cognitive learning outcomes of students are included in the moderate category with an increase in learning outcomes (N-gain) of 0.67. The affective aspect learning outcomes of 82.33% are included in the very good category, while the results of student responses of 77.40% are included in the good category, so this interactive game is suitable for use as an alternative learning medium. Novelty/Originality of this study: This study presents "Win Redox" as a game-based learning medium specifically designed to enhance understanding of the concept of redox reactions, a concept rarely developed specifically. Unlike previous research, this medium integrates validated pedagogical design with interactive game elements. This research enriches the existing research by producing a learning medium that is not only engaging but also conceptually feasible and effective.

Page 6 of 6 | Total Record : 58

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