Cuttlefish bone (CFB) successfully stabilizes highly-negatively charged hollow α-Ag₃VO₄ nanospheres (19 nm) over its aragonite-layers, and sequentially subjects for decoration with yttria (Y) quantum dot-like particles (QDs). Carmine indigo (CI) dye, Escherichia Coli bacteria and Culex pipiens larvae are chosen as urgent-target pollutants in Egypt's wastewater. Such nanocomposites are examined as photocatalysts for CI degradation, bactericides and larvicides. Ag₃VO₄/CFB exhibits highly-sounded photocatalytic efficiency (∼97 %) of 1.5 times higher than Y@Ag₃VO₄/CFB with turning of light-irradiation from UV- to green-light level. Such visible-light-driven photocatalyst generates plenty of electron-hole pairs of developed separation efficiency and transference, governing direct hole oxidation pathway for CI (∼95 % mineralization) with efficient consecutive 6 cycles. Y@Ag₃VO₄/CFB is seeded as topgallant eco-friendly biocide displaying efficiencies near 100 %. Such lethal effect regards to firm-binding of decorated-yttria QDs to aragonite-layers, encouraging formation of large-sized silver vanadates (70 nm) allowing biological activity of vanadate ions to potentially contribute in the bio-killing act.

乌贼骨（CFB）成功地稳定高负电荷的中空α银₃ VO ₄纳米球（19纳米）在其霰石的层，并依次受试者装饰用氧化钇（Y）的量子点样颗粒（量子点）。胭脂红（CI）染料，大肠埃希氏菌和淡色库蚊幼虫被选为埃及废水中的紧急目标污染物。研究了这种纳米复合材料作为CI降解的光催化剂，杀菌剂和杀幼虫剂。Ag ₃ VO ₄ / CFB具有很高的光催化效率（约97％），是Y @ Ag ₃ VO ₄的1.5倍/ CFB，将光辐射从UV转换为绿色。这种可见光驱动的光催化剂可产生大量的电子-空穴对，这些电子-空穴对具有很高的分离效率和转移性，可有效连续连续6个循环控制CI（〜95％矿化）的直接空穴氧化途径。Y @ Ag ₃ VO ₄ / CFB的种子是顶级的环保型杀菌剂，显示出接近100％的效率。这种致命作用涉及修饰的氧化钇量子点与文石层的牢固结合，从而鼓励形成大型钒酸银（70 nm），使钒酸根离子的生物活性可能有助于生物杀灭作用。