NanoBiotechnology Research Lab (NBRL), RMIT University, GPO Box 2476V, Melbourne, VIC, 3001 Australia.
Langmuir. 2012 Oct 9;28(40):14470-5. doi: 10.1021/la3033989. Epub 2012 Sep 28.
We present the employment of the Keggin ion 12-phosphotungstic acid as a UV-switchable reducing agent for the decoration of Au, Ag, Pt, and Cu nanoparticles onto the surface of TiO(2) nanotubes synthesized by electrochemical anodization. The synthesized composites were studied using SEM, GADDS XRD, and EDX, and the photocatalytic activity of the composites was examined by measuring the photodegradation of the organic dye "Congo red" under simulated solar light. Decoration with metal nanoparticles was observed to enhance the activity of the photocatalytic process by upward of 100% with respect to unmodified TiO(2) nanotubes.
我们提出了 Keggin 离子 12-磷钨酸作为一种紫外光可切换还原剂的应用，用于将 Au、Ag、Pt 和 Cu 纳米粒子修饰到通过电化学阳极氧化合成的 TiO(2)纳米管表面上。使用 SEM、GADDS XRD 和 EDX 研究了合成的复合材料，并通过测量在模拟太阳光下有机染料“刚果红”的光降解来检查复合材料的光催化活性。与未修饰的 TiO(2)纳米管相比，金属纳米粒子的修饰将光催化过程的活性提高了 100%以上。
