Ekin Santoso Sim, Rinda Wardhani, Felycia Edi Soetaredjo, Jindrayani Nyoo Putro, Shella Permatasari Santoso, Jenni Lie, Hardy Shuwanto, Nyoman Puspa Asri, Alfin Kurniawan, Suryadi Ismadji
A MIL-88B(Fe)@WO3 composite material was used in this work as a photocatalyst for degrading the synthetic dye rhodamine-B in water. The synthesis of MIL-88B(Fe)@WO3 was achieved by the solvothermal technique at 150 °C for 12 h. The introduction of WO3 into the MIL-88B(Fe) framework has a positive effect on the pore structure of the composite material produced. The BET surface area and total pore volume exhibit a direct proportionality to the magnitude of the applied WO3 ratio. A reduction in the concentration of rhodamine-B was observed when the degradation of rhodamine-B was carried out in the presence of UV light and catalyst. However, this reduction was not as significant as the degradation of rhodamine-B in the presence of UV light, catalyst, and H2O2. The present study also provides the process underlying the photodegradation of rhodamine-B dyes. Except for the M1W2 catalyst, nearly all systems have a greater R2 value for the first-order kinetic equation. The reusability analysis revealed a modest decrease in the performance of the M1W1 composite as the number of cycles increased. However, its efficacy remained largely unaffected even after undergoing a degradation reaction and subjected to several washings. © The Author(s), under exclusive licence to the Institute of Chemistry, Slovak Academy of Sciences 2025.
Department of Chemical Engineering, Widya Mandala Surabaya Catholic University, Kalijudan 37, Surabaya, 60114, Indonesia; Collaborative Research Center for Zero Waste and Sustainability, Jl. Kalijudan 37, East Java, Surabaya, 60114, Indonesia; Department of Industrial Engineering, Universitas Prima Indonesia, Medan, Indonesia; Department of Food Science, University of Ciputra, Surabaya, Indonesia; Research Group for Advanced Materials and Sustainable Catalysis (AMSC), State Key Laboratory of Green Chemistry Synthesis Technology, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, 310032, China; Anhui International Exchange and Cooperation Base, Qing Yang Institute for Industrial Minerals, Anhui, Youhua, Qingyang, 242804, China