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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 100 Documents
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Chemistry Learning Media Innovation: Interactive Website Development for Buffer Solution Material Fastaqima, Fina; Sundus, Maria
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 Rahmah, Siti Zainatur; Pongpatrakant, Wimonnan
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 Wandansari, Umi; Nirvana, Indhie; Sharma, Neelam
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 Safitriyani, Siti; Tjakrawati, Anisah
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.
Inquiry-Based Chemistry Learning: An Effective Strategy to Strengthen Students' Conceptual Understanding Khasanah, Khasanah; Dewimarhelly, Dewimarhelly
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.v1i2.3075

Abstract

Purpose of the study: This study aims to determine whether inquiry-based chemistry learning has an effect on students' conceptual understanding, especially on colloid material, by comparing learning outcomes before and after the application of inquiry-based learning. Methodology: The study used a one-group pretest-posttest weak experimental design, purposive sampling technique with a sample of 40 students, instruments in the form of multiple-choice tests and questionnaires. Data analysis used the Liliefors normality test, Fisher's homogeneity test, t-test, and N-Gain quantitatively. Main Findings: The results of the study showed an increase in students' conceptual understanding after inquiry-based learning, with the average score increasing from pretest to posttest. The N-Gain value of 0.46 is included in the moderate category, dominated by the moderate category. Statistical tests showed that t count > t table, indicating a significant effect of inquiry-based learning. Novelty/Originality of this study: This study emphasizes specific conceptual understanding in inquiry-based chemistry learning on colloids. The novelty lies in the empirical evidence of direct classroom implementation, which demonstrates how a structured inquiry process can significantly improve students' conceptual construction, resulting in moderate improvement.
Photodegradation of Methylene Blue Dye Using TiO2/Zeolite with the Addition of Nitrate Ions (NO3-) Erwanto, Erwanto
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.v1i2.3077

Abstract

Purpose of the study: This study aims to determine the characterization of TiO₂/zeolite composites and determine the amount of TiO₂/zeolite, NO₃⁻ ion concentration, and optimum irradiation time for the photodegradation process of methylene blue in solution. Methodology: This study used X-Ray Diffraction (XRD-6000 Shimadzu), UV-Vis spectrophotometer, UV lamp (Sankyo, 10 W, 352 nm), Teflon type hydrothermal reactor, and photocatalyst reactor (40×40×40 cm). The methods include zeolite activation, TiO₂ dispersion, hydrothermal synthesis, photodegradation test, and data regression analysis. Main Findings: The TiO₂/zeolite composite showed characteristic peaks at 2θ = 25.2737°, 37.6855°, and 48.0278° without any change in the crystal structure. The maximum degradation effectiveness of 29.94% was obtained by adding 75 mg of the composite. The optimum NO₃⁻ concentration was 0.5 M with an irradiation time of 100 minutes resulting in an effectiveness of 30.81%. NO₃⁻ has a dual role in the degradation process. Novelty/Originality of this study: This study developed a photodegradation system with a combination of TiO₂/zeolite composite and nitrate ions. The novelty lies in the simultaneous analysis of the effects of catalyst amount, NO₃⁻ concentration, and irradiation time, as well as revealing the dual role of NO₃⁻ in enhancing and inhibiting degradation.
Innovative Chemistry Learning: The Impact of the Jigsaw Cooperative Model on Students’ Understanding of Reaction Rate Concepts Astuti, Mareta Dwi
Journal of Chemical Learning Innovation Vol. 3 No. 1 (2026): June
Publisher : Cahaya Ilmu Cendekia Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37251/jocli.v3i1.3080

Abstract

Purpose of the study: This study aims to determine the effect of the Jigsaw type cooperative learning model on students' chemistry learning outcomes on the concept of reaction rate by comparing it with the expository learning method at the high school level. Methodology: Quasi-experimental method, Only Posttest Control Group Design, purposive sampling technique, multiple-choice test instrument (22 questions), validity and reliability test using ANATES software, Liliefors normality test, Fisher homogeneity test, and t-test statistical analysis at a significance level of α = 0.05. Main Findings: The average value of the experimental group (70.15) was higher than the control group (57.87). The results of the statistical test showed that tcount = 4.47 was greater than ttable = 1.999, so there was a significant difference. The Jigsaw Model was proven to improve student learning outcomes on the concept of reaction rate. Novelty/Originality of this study: This research focuses on the application of the Jigsaw model to the under-researched concept of reaction rate. This study provides empirical evidence of its effectiveness in chemistry learning and enriches innovative learning strategies to enhance conceptual understanding and student engagement.
Analytical Method Optimization of H₂O₂ Derivatization Reaction Time for HPLC Analysis under Tropical Laboratory Conditions Dinalia; Sosidi, Husain; Ridhay, Ahmad; Hannan, Hannan; Khairuddin, Khairuddin; Satrimafitrah, Pasjan; Syamsuddin, Syamsuddin
Journal of Chemical Learning Innovation Vol. 3 No. 1 (2026): June
Publisher : Cahaya Ilmu Cendekia Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37251/jocli.v3i1.3086

Abstract

Purpose of the study: This study aims to evaluate the suitability of the commonly reported 2-hour derivatization time for hydrogen peroxide (H₂O₂) determination using HPLC-PDA by assessing the formation behavior of triphenylphosphine oxide (TPPO) under tropical laboratory conditions. Methodology: The study employed an HPLC–PDA system (Shimadzu LC-20AD) with a reversed-phase C18 column (Waters X-Bridge, 4.6 × 150 mm, 5 µm). Derivatization of H₂O₂ with triphenylphosphine (Sigma-Aldrich) was performed using acetonitrile (Merck). The time-dependent kinetics of TPPO formation were evaluated based on chromatographic peak area monitoring. Data were processed using integrated instrument software. Main Findings: The TPPO peak area increased progressively with reaction time and approached a plateau at approximately 60 min, indicating near-complete derivatization under the studied conditions. No substantial increase in analytical response was observed at longer reaction times. Repeatability evaluation at 60 min showed acceptable analytical precision with %RSD below 2%, demonstrating that a shorter derivatization time was adequate for routine analysis. Novelty/Originality of this study: This study provides a context-specific evaluation of derivatization time as part of analytical method optimization in HPLC systems under tropical laboratory conditions. The findings demonstrate the importance of verifying derivatization parameters under specific working environments to improve analytical efficiency and ensure reliable chromatographic performance.
Development of Pyrimidinon Derivative Compounds from Methoxy Bis-Chalcone Analogs as Potential Anticancer Candidates Tussholiha, Nia
Journal of Chemical Learning Innovation Vol. 3 No. 1 (2026): June
Publisher : Cahaya Ilmu Cendekia Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37251/jocli.v3i1.3170

Abstract

Purpose of the study: This study aims to evaluate its bioactivity as a candidate anticancer compound through inhibition testing of dihydrofolate reductase enzyme activity. Methodology: Organic synthesis methods through condensation and cyclization, reflux, recrystallization, preparative thin layer chromatography, Fisher John Melting Point Apparatus, ultraviolet visible spectrometer, nuclear magnetic resonance spectrometer, mass spectrometer, infrared spectrometer, centrifugation, in vitro dihydrofolate reductase enzyme inhibition test, probit analysis, methotrexate as a positive control, and evaluation of anticancer bioactivity. Main Findings: The pyrimidinone derivative compound was successfully synthesized and confirmed through physical and spectroscopic characterization. The test results showed significant inhibitory activity against the dihydrofolate reductase enzyme. The synthesized compound had a fifty percent inhibitory concentration of 25.086 micrograms per milliliter, lower than the positive control, indicating better anticancer potential and high inhibitory effectiveness. Novelty/Originality of this study: The novelty of this research lies in the synthesis of pyrimidinone derivatives based on bis-chalcone analogs containing methoxy groups, which have not been widely studied as anticancer candidates. This study provides new insights into the relationship between structure and biological activity, while also expanding the development of heterocyclic compounds as dihydrofolate reductase inhibitors for anticancer therapy.
Learning Cycle 7E-Based Chemistry Learning: Its Impact on Grade X Students’ Achievement and Motivation Aprianingsih, Eli; Ramanda, Cinintya
Journal of Chemical Learning Innovation Vol. 3 No. 1 (2026): June
Publisher : Cahaya Ilmu Cendekia Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37251/jocli.v3i1.3190

Abstract

Purpose of the study: This study aims to determine the effect of implementing the Learning Cycle 7E learning model on student learning outcomes and motivation in chemistry learning for class X, especially on the material of electrolyte and non-electrolyte solutions, and to compare its effectiveness with conventional learning models applied in schools. Methodology: The study used a quasi-experimental method with a posttest control group design. Samples were taken using a saturated sampling technique on grade X students of State Senior High School 1 Brang Rea. The research instruments included a learning motivation questionnaire and a learning outcome test on electrolyte-nonelectrolyte solutions. Data analysis used the Lilliefors, Kruskal-Wallis, Mann-Whitney normality tests, and IBM SPSS Statistics 22.0 software. Main Findings: The results of the study showed that the Learning Cycle 7E learning model did not have a significant effect on students' chemistry learning outcomes (sig. 0.392 > 0.05) or student learning motivation (sig. 0.386 > 0.05). Multivariately, the application of this model also did not show better effectiveness than conventional learning in improving the learning outcomes and motivation of class X students. Novelty/Originality of this study: The novelty of this research lies in the simultaneous analysis of the influence of the 7E Learning Cycle model on two important variables, namely the learning outcomes and motivation of 10th grade chemistry students on the topic of electrolyte and nonelectrolyte solutions.

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