Photocatalytic oxidation reactions are regarded as promising green synthesis methods for the photodegradation of volatile organic compounds such as trichloroethylene. However, low photocatalytic efficiency and selectivity limit practical application of the technique. We report the synthesis of novel hexagonal BiPO₄/Au-Pd nanorods with diameters of 500 nm that display excellent performance in degrading trichloroethylene under visible-light irradiation. With co-catalytic Au–Pd bimetallic alloy nanoparticles deposited on the nanorod surfaces, the photocatalytic activity is enhanced approximately 25 times compared to that of the BiPO₄ nanorods. The dramatic enhancement of activity is attributed to the Au–Pd alloy nanoparticles effectively separating the oxidation and reduction sites, thereby promoting charge-separation efficiency and providing abundant catalytically active sites to enhance the reactivity of BiPO₄. The excellent photocatalytic performance is also attributed to the moderated conduction band position and an optimum Au–Pd weight percentage. This material provides a promising strategy for degradation of volatile organic compounds.

光催化氧化反应被认为是用于挥发性有机化合物（如三氯乙烯）光降解的有前途的绿色合成方法。但是，低的光催化效率和选择性限制了该技术的实际应用。我们报告了直径为500 nm的新型六角形BiPO ₄ / Au-Pd纳米棒的合成，该棒在可见光照射下降解三氯乙烯方面表现出优异的性能。与共催化的Au-Pd双金属合金纳米颗粒沉积在纳米棒表面上相比，其光催化活性比BiPO ₄增强了约25倍。纳米棒。活性的显着提高归因于Au-Pd合金纳米颗粒有效地分离了氧化和还原位点，从而促进了电荷分离效率并提供了丰富的催化活性位点，从而增强了BiPO ₄的反应性。优异的光催化性能还归因于适度的导带位置和最佳的Au-Pd重量百分比。该材料为降解挥发性有机化合物提供了一种有希望的策略。