CAJ | 학술논문

采用电解液修饰法，利用微弧氧化技术直接在铝基体上制备CuO/Al 2 O 3微弧氧化复合膜层，研究复合膜层表面元素的结合状态以及电参数对复合化膜层表面形貌和孔径的影响，探讨复合膜层对甲基橙溶液的催化降解作用。结果表明：利用微弧氧化技术可一步制备出CuO/A12 O 3复合膜层，且CuO晶格氧含量可达33.7%(质量分数)；随着电压、占空比的增大和频率的减小，复合膜层表面微孔的孔径增加，孔数目减少，粗糙程度增加；复合膜层在常温常压下催化10 h可使甲基橙溶液降解率达到70%左右。
채용전해액수식법，이용미호양화기술직접재려기체상제비CuO/Al 2 O 3미호양화복합막층，연구복합막층표면원소적결합상태이급전삼수대복합화막층표면형모화공경적영향，탐토복합막층대갑기등용액적최화강해작용。결과표명：이용미호양화기술가일보제비출CuO/A12 O 3복합막층，차CuO정격양함량가체33.7%(질량분수)；수착전압、점공비적증대화빈솔적감소，복합막층표면미공적공경증가，공수목감소，조조정도증가；복합막층재상온상압하최화10 h가사갑기등용액강해솔체도70%좌우。
The micro-arc oxidation technology was employed to directly prepare a CuO/Al 2 O 3 composite coating film on an alunimium substrate, which was also modified by doping electrolyte. The properties of CuO/Al2O3 coating film were investigated focusing on the adhesion of different elements on the coating surface, the effect of electrical parameters on the surface morphologies and the pore diameter, and the catalytic degradation of methyl orange by CuO/Al2O3 composite film was also investigated. The results show that micro-arc oxidation technology can be introduced to prepare a CuO/Al 2 O 3 composite film. The content of oxygen reaches 33.7%in the CuO lattice. The pore diameter and number of the composite film are seriously influenced by the electrical parameters. With the increase of the voltage and the duty ratio (φ) and the decrease of the frequency, the surface pore diameter and roughness of the composite film increase, while the number of holes decrease. The degradation rate of methyl orange reaches 70% by the catalysis of the CuO/Al 2 O 3 composite coating film for 10 h at ordinary temperatures and pressures.