CAJ | 학술논문

采用微弧氧化方法和原位生成的 Zr(OH)4胶体颗粒，在纯钛基体上制备 ZrO2/TiO2复合光催化膜。采用SEM、EDX、XRD、UV-Vis DRS等分析手段，对膜层进行分析表征。结果表明：复合膜显示出层状和多孔的结构，由锐钛矿、金红石和ZrO2组成；相对于纯TiO2膜，复合膜层的光吸收截止边缘产生红移；ZnO2/TiO2复合膜层和纯TiO2膜层在紫外光照射下，对罗丹明B的光催化速率常数分别为0.0442和0.0186 h?1。
채용미호양화방법화원위생성적 Zr(OH)4효체과립，재순태기체상제비 ZrO2/TiO2복합광최화막。채용SEM、EDX、XRD、UV-Vis DRS등분석수단，대막층진행분석표정。결과표명：복합막현시출층상화다공적결구，유예태광、금홍석화ZrO2조성；상대우순TiO2막，복합막층적광흡수절지변연산생홍이；ZnO2/TiO2복합막층화순TiO2막층재자외광조사하，대라단명B적광최화속솔상수분별위0.0442화0.0186 h?1。
ZrO2/TiO2 composite photocatalytic film was produced on the pure titanium substrate using in-situ Zr(OH)4 colloidal particle by the micro-arc oxidation technique and characterized by scanning electron microscope (SEM), energy dispersive X-ray (EDX), X-ray diffraction (XRD) and ultraviolet-visible (UV-Vis) spectrophotometer. The composite film shows a lamellar and porous structure which consists of anatase, rutile and ZrO2 phases. The optical absorption edge of film is shifted to longer wavelength when ZrO2 is introduced to TiO2. Furthermore, the photocatalytic reaction rate constants of degradation of rhodamine B solution with ZrO2/TiO2 composite film and pure TiO2 film under ultraviolet irradiation are measured as 0.0442 and 0.0186 h?1, respectively.