Rizky Nur Hidayat, Hendri Widiyandari, Hanaiyah Parasdila, Orien Prilita, Yayuk Astuti, Nandang Mufti, Takashi Ogi
Lime (Citrus aurantifolia) is one of the most extensively exported agricultural products from Indonesia. Citric acid and ascorbic acid content from limes (Citrus aurantifolia) is such one of the carbon-rich fruits that is a suitable source for Carbon Quantum Dots (CQDs) synthesis. CQD synthesized by relying on natural carbon precursors from lime (Citrus aurantifolia) is a more environmentally friendly approach in the present research, CQDs in this research will be used as an addition to ZnO by hydrothermal method in order to enhance photocatalytic activity. Corresponding to the results, the presence of CQDs improves both the optical and structural properties of ZnO, which led to enhance photocatalytic activity with a degradation percentage of 98% shortly after 75 min of visible light irradiation and to each of the repeatability test cycle results showing the consistent results and with the rate constant (k) fluctuating and the specified compound's degradation percentage remains relatively constant with minor changes. © 2024 The Authors
Department of Physics, Universitas Sebelas Maret, Jl. Ir. Sutami 36 A, Central Java, Surakarta, 57126, Indonesia; Centre of Excellence for Electrical Energy Storage Technology, Universitas Sebelas Maret, Jl. Slamet Riyadi 435, Central Java, Surakarta, 57146, Indonesia; Department of Chemistry, Universitas Diponegoro, Jl. Prof. Soedharto, S.H. Tembalang, Semarang, 50275, Indonesia; Center of Advanced Materials for Renewable Energy, Universitas Negeri Malang, Jl. Semarang No. 5, Malang, 65145, Indonesia; Chemical Engineering Program, Hiroshima University, 1-4-1 Kagamiyama, Higashihiroshima, Hiroshima, 739-8257, Japan
