Vol. 11 No. 1 (2026)

The articles in this issue were authored/co-authored by authors from Indonesia, Malaysia, Taiwan and Germany

DOI: https://doi.org/10.15575/jtk.v11i1
Published: 2026-06-01

Articles

  • Exploring Learning Obstacles in Extraction: A Qualitative Analysis for Systems Thinking-Based Didactical Design

    Annisa Khairani Putri,  Master Program of Chemistry Education, Faculty of Mathematics and Science Education, Universitas Pendidikan Indonesia, Bandung 40154,  Indonesia
    Hernani Hernani,  Master Program of Chemistry Education, Faculty of Mathematics and Science Education, Universitas Pendidikan Indonesia, Bandung 40154,  Indonesia
    Soja Siti Fatimah,  Master Program of Chemistry Education, Faculty of Mathematics and Science Education, Universitas Pendidikan Indonesia, Bandung 40154,  Indonesia
    Atep Rian Nurhadi,  Master Program of Chemistry Education, Faculty of Mathematics and Science Education, Universitas Pendidikan Indonesia, Bandung 40154,  Indonesia
    Billy Oktora Abdilah Fauzi,  Institute of Inorganic and Materials Chemistry, University of Cologne, 50939 Cologne,  Germany
    1-13
    DOI : 10.15575/jtk.v11i1.52383 PDF downloads: 35

  • Profiling Students' Critical Thinking and Multiple Representation Skills in Buffer Solution Learning Using a Web-Based Assessment Tool

    Tissa Indah,  Master of Chemistry Education, Faculty of Teacher Training and Education, University of Riau, Kampus Bina Widya KM. 12.5, Simpang Baru, Kec. Tampan, Kota Pekanbaru, Riau, 28293,  Indonesia
    Susilawati Susilawati,  Master of Chemistry Education, Faculty of Teacher Training and Education, University of Riau, Kampus Bina Widya KM. 12.5, Simpang Baru, Kec. Tampan, Kota Pekanbaru, Riau, 28293,  Indonesia
    Dedi Futra,  Master of Chemistry Education, Faculty of Teacher Training and Education, University of Riau, Kampus Bina Widya KM. 12.5, Simpang Baru, Kec. Tampan, Kota Pekanbaru, Riau, 28293,  Indonesia
    14-24
    DOI : 10.15575/jtk.v11i1.51053 PDF downloads: 41

  • Enhancing Science Literacy and Active Participation through Guided Inquiry E-Worksheets in Reaction Rate Learning

    Herdini Herdini,  Department of Chemistry Education, Faculty of Teacher Training and Education, Riau University, Pekanbaru, Riau, 28293,  Indonesia
    Martha Larasaty Hutagalung,  Department of Chemistry Education, Faculty of Teacher Training and Education, Riau University, Pekanbaru, Riau, 28293,  Indonesia
    Sri Haryati,  Department of Chemistry Education, Faculty of Teacher Training and Education, Riau University, Pekanbaru, Riau, 28293,  Indonesia
    Putri Adita Wulandari,  Department of Chemistry Education, Faculty of Teacher Training and Education, Riau University, Pekanbaru, Riau, 28293,  Indonesia
    25-36
    DOI : 10.15575/jtk.v11i1.44904 PDF downloads: 26

  • Microwave-Assisted Synthesis of Eggshell-Derived Hydroxyapatite for Antibacterial Toothpaste Enriched with Avocado Seed Powder and Extract

    Gabrielle Callista Dwi Putri,  Department of Chemistry, Faculty of Mathematics and Natural Sciences Universitas Padjadjaran, Sumedang, 45363,  Indonesia
    Atiek Rostika Noviyanti,  Department of Chemistry, Faculty of Mathematics and Natural Sciences Universitas Padjadjaran, Sumedang, 45363,  Indonesia
    https://orcid.org/0000-0002-2355-7624
    Yudha Prawira Budiman,  Department of Chemistry, Faculty of Mathematics and Natural Sciences Universitas Padjadjaran, Sumedang, 45363,  Indonesia
    Suryana Suryana,  Department of Biology, Faculty of Mathematics and Natural Sciences, Universitas Padjadjaran Sumedang 45363,  Indonesia
    Azman Bin Ma’Amor,  Department of Chemistry, University Malaya, Kuala Lumpur, 50603,  Malaysia
    37-57
    DOI : 10.15575/jtk.v11i1.55586 PDF downloads: 3

  • Development of an SSI-Based Chemistry E-Module Integrating Islamic Values to Support Critical Thinking in Chemistry Learning

    Mimi Herman,  Chemistry Education, Faculty of Education and Teacher Training, State Islamic University Mahmud Yunus Batusangkar, Jl. Jend Sudirman no 137, Batusangkar, 27217,  Indonesia
    Dwivelia Aftika Sari,  Chemistry Education, Faculty of Education and Teacher Training, State Islamic University Mahmud Yunus Batusangkar, Jl. Jend Sudirman no 137, Batusangkar, 27217,  Indonesia
    Ajis Kurniawan,  Chemistry Education, Faculty of Education and Teacher Training, State Islamic University Mahmud Yunus Batusangkar, Jl. Jend Sudirman no 137, Batusangkar, 27217,  Indonesia
    Anisa Anisa,  Chemistry Education, Faculty of Education and Teacher Training, State Islamic University Mahmud Yunus Batusangkar, Jl. Jend Sudirman no 137, Batusangkar, 27217,  Indonesia
    Elvy Rahmi Mawarnis,  Chemistry Education, Faculty of Education and Teacher Training, State Islamic University Mahmud Yunus Batusangkar, Jl. Jend Sudirman no 137, Batusangkar, 27217,,  Indonesia
    Hidayat Herman,  Medan State University, Jl. Williem Iskandar Pasar V, Medan, 20221,  Indonesia
    Akrajas Ali Umar,  Institute of Microengineering and Nanoelectronics, Universiti Kebangsaan Malaysia,  Malaysia
    Muhd Ibrahim,  Faculty of Science and Mathematics, Universiti Pendidikan Sultan Idris, Tanjung Malim, Perak,  Malaysia
    58-73
    DOI : 10.15575/jtk.v11i1.54235 PDF downloads: 21

  • Ethno-RSTEM Integrated E-Module Assisted by Virtual Reality to Provide Students with Chemical Literacy and Religious Values

    Nurul Fadhilah,  Master of Chemistry Education, Faculty of Mathematics and Natural Sciences, Universitas Negeri Semarang,  Indonesia
    Sudarmin Sudarmin,  Master of Chemistry Education, Faculty of Mathematics and Natural Sciences, Universitas Negeri Semarang,  Indonesia
    Woro Sumarni,  Master of Chemistry Education, Faculty of Mathematics and Natural Sciences, Universitas Negeri Semarang,  Indonesia
    74-84
    DOI : 10.15575/jtk.v11i1.39357 PDF downloads: 16

  • Diagnostic Value of Error Analysis in Undergraduate Biochemistry Laboratory Education

    Mirwa Adiprahara Anggarani,  Department of Chemistry, Faculty of Mathematics and Natural Science, Universitas Negeri Surabaya, Ketintang Street, Gayungan, Surabaya, 60231,  Indonesia
    Yurita Gita Puspa Nugrainglahi,  Department of Chemistry, Faculty of Mathematics and Natural Science, Universitas Negeri Surabaya, Ketintang Street, Gayungan, Surabaya, 60231,  Indonesia
    Maretha Nur Rohma,  Department of Chemistry, Faculty of Mathematics and Natural Science, Universitas Negeri Surabaya, Ketintang Street, Gayungan, Surabaya, 60231,  Indonesia
    Adinda Debita Prihastina,  Department of Chemistry, Faculty of Mathematics and Natural Science, Universitas Negeri Surabaya, Ketintang Street, Gayungan, Surabaya, 60231,  Indonesia
    Soesilowati Soesilowati,  Department of Chemistry, Faculty of Mathematics and Natural Science, Universitas Negeri Surabaya, Ketintang Street, Gayungan, Surabaya, 60231,  Indonesia
    85-93
    DOI : 10.15575/jtk.v11i1.44995 PDF downloads: 1

  • Green Synthesis of Gold Nanoparticles Using Red Ginger (Zingiber officinale Roscoe) Extract and CMC-Na as a Stabilizing Agent

    Titta Hartyana Sutarna,  Pharmacy Study Program, Faculty of Pharmacy, Universitas Jenderal Achmad Yani,  Indonesia
    Hestiary Ratih,  Pharmacy Study Program, Faculty of Pharmacy, Universitas Jenderal Achmad Yani,  Indonesia
    Arie Hardian,  Study Program of Master of Chemistry, Fakultas Sains dan Informatika, Universitas Jenderal Achmad Yani & Material and Environmental Development Center, Universitas Jenderal Achmad Yani,  Indonesia
    https://orcid.org/0000-0002-8461-1444
    Dwi Ayudhaningsih,  Pharmacy Study Program, Faculty of Pharmacy, Universitas Jenderal Achmad Yani ,  Indonesia
    94-111
    DOI : 10.15575/jtk.v11i1.55429 PDF downloads: 5

  • Chemical Composition and Structural Characterization of a Basil (Ocimum basilicum L.) Leaf Extract–Bionutrient S-367B Composite

    Yaya Sonjaya,  Department of Chemistry, Faculty of Science and Mathematics Education, Indonesia University of Education, Jl. Dr. Setiabudi No. 229, Bandung 40154, West Java,  Indonesia
    Hasya Fatharani Aliya Yasyfa,  Department of Chemistry, Faculty of Science and Mathematics Education, Indonesia University of Education, Jl. Dr. Setiabudi No. 229, Bandung 40154, West Java,  Indonesia
    Iqbal Mustapha,  Department of Chemistry, Faculty of Science and Mathematics Education, Indonesia University of Education, Jl. Dr. Setiabudi No. 229, Bandung 40154, West Java,  Indonesia
    Billy Oktora Abdillah Fauzi,  Department of Chemistry and Biochemistry, Faculty of Mathematics and Natural Sciences, University of Cologne, Köln,  Germany
    112-131
    DOI : 10.15575/jtk.v11i1.54888 PDF downloads: 3

  • Computational Chemistry Software for Developing Deep Conceptual Understanding among Pre-Service Chemistry Teachers

    Teguh Wibowo,  Department of Chemistry Education, Faculty of Science and Technology, Universitas Islam Negeri Walisongo Semarang, Semarang, 50185,  Indonesia
    https://orcid.org/0000-0003-0523-639X
    Ariyatun Ariyatun,  Department of Chemistry Education, Faculty of Mathematics and Natural Science, Universitas Negeri Jakarta, Jakarta Timur, 13220,  Indonesia
    https://orcid.org/0000-0002-2516-3688
    Annisa Adiwena Putri,  Department of Chemistry, Faculty of Science and Technology, Universitas Islam Negeri Walisongo Semarang, Semarang, 50185,  Indonesia
    https://orcid.org/0000-0003-0186-3353
    Ervin Tri Suryandari,  Department of Chemistry, Faculty of Science and Technology, Universitas Islam Negeri Walisongo Semarang, Semarang, 50185,  Indonesia
    Azlan Bin Kamari,  Department of Chemistry Education, Faculty of Science and Mathematics, Universiti Pendidikan Sultan Idris, Tanjong Malim, Perak, 35900,  Malaysia
    https://orcid.org/0000-0002-3167-0619
    Jajang Muhariyansah,  Graduate Institute of Science Education, College of Science, National Taiwan Normal University, Taipei, 106308,  Taiwan, Province of China
    132-144
    DOI : 10.15575/jtk.v11i1.51648 PDF downloads: 6