压电-光催化作用对CaP在TC4表面ZnO纳米棒阵列上的沉积机制  

Deposition Mechanism of CaP on ZnO Nanorod Arrays on Surface of TC4 Alloy via Piezoelectric-Photocatalytic Effect

作　　者：陈天濠 周清[1] 许晓键 CHEN Tianhao;ZHOU Qing;XU Xiaojian(College of Mechanical and Electrical Engineering,Nanjing University of Aeronautics&Astronautics,Nanjing 210016,China)

机构地区：[1]南京航空航天大学机电学院,南京210016

出　　处：《南京航空航天大学学报(自然科学版)》2025年第1期139-146,共8页Journal of Nanjing University of Aeronautics & Astronautics

摘　　要：由于钛合金(TC4)的表面惰性,其作为骨植入材料在生物相容性方面存在局限性。本文采用水热生长法在TC4表面成功构建了具有压电和光催化特性的ZnO纳米棒阵列涂层。在模拟体液中进行的仿生矿化实验中,通过对样品表面施加振动和紫外光照射,探究压电-光催化共同作用下对磷酸钙(CaP)的沉积的影响,提出了一种新的仿生矿化沉积CaP的方法。结果表明:氧化锌的压电-光催化共同作用显著增强了CaP的沉积量,优于单独压电或光催化作用下的沉积量。此外,单独的振动或紫外光照也表现出较未处理样品更高的CaP沉积量。本文在钛合金片表面制备了ZnO纳米棒阵列,并提出了一种利用压电-光共同作用增强CaP沉积的方法,为涂层技术及生物医用材料的进一步开发应用提供了一种新思路。The surface inertness of titanium alloy(TC4)presents limitations in terms of biocompatibility when used as a bone implant material.A hydrothermal growth method is employed to successfully construct a ZnO nanorod array coating on TC4 surfaces,exhibiting piezoelectric and photocatalytic properties.In biomineralization experiments conducted in simulated body fluid,effects of combined piezo-photocatalysis on the deposition of calcium phosphate(CaP)are investigated by applying vibration and ultraviolet(UV)light irradiation to the sample surfaces.A novel method for biomimetic deposition of CaP is proposed.The results show that the combined piezo-photocatalytic action of zinc oxide significantly enhances the deposition amount of CaP,outperforming the deposition achieved by either piezoelectric or photocatalytic action alone.Additionally,both isolated vibration and UV illumination demonstrate higher CaP deposition amounts compared with untreated samples.This research has prepared ZnO nanorod arrays on titanium alloy sheets and proposes a method utilizing the combined piezoelectric-photocatalytic effect to enhance CaP deposition,offering a new perspective for the further development and application of coating technologies and biomedical materials.

关 键 词：TC4 氧化锌 压电-光催化 磷酸钙 仿生矿化 

分 类 号：TB333[一般工业技术—材料科学与工程]