Vol. 9 No. 1 (2026): JUNE 2026

Articles

• APPLICATION OF HEMATITE SYNTHESIZED FROM IRON RUST WASTE AS A PIGMENT DYES FOR COTTON TEXTILE PRINTING

  Asiyah Nurrahmajanti (Politeknik STTT Bandung, Indonesia)
  Octianne Djamaludin (Politeknik STTT Bandung, Indonesia)
  Wulan Safrihatini Atikah (Politeknik STTT Bandung, Indonesia, Indonesia)

  1-9

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  DOI : 10.21831/ijoce.v9i1.97711

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• ANTIOXIDANT ACTIVITY AND TOXICITY OF THE ETHYL ACETATE AND DICHLOROMETHANE FRACTIONS OF THE ETHANOL EXTRACT OF SIKKAM LEAVES (Bischofia javanica Blume)

  Putu Widiari (Universitas Pendidikan Ganesha, Indonesia)
  I Wayan Muderawan (Universitas Pendidikan Ganesha, Indonesia)
  Rachmadhani Rachmadhani (Universitas Pendidikan Ganesha, Indonesia)

  10-17

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  DOI : 10.21831/ijoce.v9i1.97531

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• Well Water Quality Assessment Around Ciangir Landfill, Tasikmalaya City, Using the Pollution Index

  Tegar Muhammad Mikdar (Universitas Muhammadiyah Tasikmalaya, Indonesia)
  Melly Mellyanawaty (Institut Teknologi Yogyakarta, Indonesia)

  18 - 24

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  DOI : 10.21831/ijoce.v9i1.97570

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• Recent Advances in the Development of Transition Metal-Doped TiO2-Doped Photocatalysts and Electrocatalysts for Hydrogen Evolution Reactions: A Systematic Review

  Misriyani Misriyani (Alkhairaat University, Indonesia)
  Emil Hardiansyah (Alkhairaat University, Indonesia)
  Isti Yunita (Universitas Negeri Yogyakarta, Indonesia)

  25 - 33

  Abstract View : 0

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  DOI : 10.21831/ijoce.v9i1.96462

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• Yield, Antioxidant Activity, and Toxicity of Ethanol Extracts from Air- and Sun-Dried Sikkam Leaves (Bischofia javanica Blume) Obtained by Maceration and Soxhlet Extraction

  I Wayan Muderawan (Universitas Pendidikan Ganesha, Indonesia)
  Nia Astria Br. Saragih (Universitas Pendidikan Ganesha, Indonesia)
  I Wayan Mudianta (Universitas Pendidikan Ganesha, Indonesia)

  34 - 46

  Abstract View : 0

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  DOI : 10.21831/ijoce.v9i1.97771

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• Development of a Heyzine E-Module Integrating Cassava Fermentation Ethnoscience for Acid-Base Chemistry

  Kharisma Eka Yulianti Eka (Universitas Lampung, Indonesia)
  Bayu Saputra (Universitas Lampung, Indonesia)
  Gamilla Nuri Utami (Universitas Lampung, Indonesia)

  47 - 54

  Abstract View : 0

  PDF downloads: 0

  DOI : 10.21831/ijoce.v9i1.99354

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