Green Synthesis of Silver Nanoparticles Using Soursop Leaf Extract for Photocatalytic Degradation of Textile Wastewater

Iryanti Eka Suprihatin (Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Udayana, Jl. Raya Kampus UNUD, Bali, 80361)
Anak Agung Sagung Alit Sukmaningsih (Department of Biology, Faculty of Mathematics and Natural Sciences, Universitas Udayana, Jl. Raya Kampus UNUD, Bali, 80361)
Ni Made Utami Dwipayanti (Department of Environmental Science, Postgraduate Building, Universitas Udayana, Jl. P.B. Sudirman, Denpasar, Bali, 80114)
Ida Ayu Gede Widihati (Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Udayana, Jl. Raya Kampus UNUD, Bali, 80361)
Ni Putu Diantariani (Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Udayana, Jl. Raya Kampus UNUD, Bali, 80361)
Ni Gusti Ayu Dwi Adhi Suastuti (Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Udayana, Jl. Raya Kampus UNUD, Bali, 80361)
I Gusti Ayu Kunti Sri Panca Dewi (Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Udayana, Jl. Raya Kampus UNUD, Bali, 80361)

Bulletin of Chemical Reaction Engineering & Catalysis
2026: BCREC Volume 21 Issue 3 Year 2026 (October 2026)

This study aimed to synthesize silver nanoparticles (AgNPs) as a photocatalyst and evaluate their performance for textile wastewater photodegradation since previous studies have mainly focused on photocatalytic degradation of model dye compounds, whereas studies using actual textile wastewater remain limited. The synthesis was achieved by extracting soursop leaves and mixing them with AgNO₃ and heating the mixture. After photodegradation reaction condition optimization, the optimum conditions were found at pH of 13, 15 minutes of irradiation time, and a volume of 0.5 mL of AgNPs. Under these conditions, a degradation percentage of 34.37-37.76% was achieved, with a reduction in BOD levels of 5.54-11.08% and COD levels of 8.66-12.22%. These results indicate the potential of AgNPs for textile wastewater treatment, although pretreatment may be required to improve degradation performance. Copyright © 2026 by Authors, Published by BCREC Publishing Group. This is an open access article under the CC BY-SA License (https://creativecommons.org/licenses/by-sa/4.0).