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。
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.
参考文献
| [1] | 毕道毅.湿式氧化催化剂的研究[J].工业催化,1999(05):24. |
| [2] | 李桂菊,雷岗星,蔡永凯,何迎春.CWO法处理高浓度有机废水中催化剂的研究进展[J].工业水处理,2009(11):11-14. |
| [3] | 陈莎,张颖,曹莹,王晓伟.催化湿式氧化法处理有机废水的催化剂研究[J].环境科学与管理,2007(03):119-123. |
| [4] | 康新婷,汤慧萍,张健,吴贤.汽车尾气净化用贵金属催化剂研究进展[J].稀有金属材料与工程,2006(z2):442-447. |
| [5] | 师江柳;刘金尧;朱起明;张鎏 张继炎 .CuO/ZrO 2超细粒子催化剂的制备和物性结构表征[J].催化学报,1996,17(04):277-280. |
| [6] | 张智敏;郝建刚;李耀龙 .程序升温脱附法研究超细Mo/Al 2 O 3催化剂[J].催化学报,1995,16(04):316-319. |
| [7] | 国海光,韩文锋,刘化章,沈菊李.铜基甲醇合成催化剂的研究[J].浙江工业大学学报,2003(05):508-511. |
| [8] | Haihe Luo;Qizhou Cai;Bokang Wei .Study on the microstructure and corrosion resistance of ZrO_2-containing ceramic coatings formed on magnesium alloy by plasma electrolytic oxidation[J].Journal of Alloys and Compounds: An Interdisciplinary Journal of Materials Science and Solid-state Chemistry and Physics,2009(1/2):551-556. |
| [9] | Lukiyanchuk IV;Tyrina LM;Rudnev VS;Ustinov AY;Nedozorov PM;Vasil'eva MS .Catalytic properties of aluminum/nickel-, copper-containing oxide film compositions[J].Kinetics and catalysis,2008(3):439-445. |
| [10] | 杨巍,蒋百灵,时惠英.LY12铝合金微弧氧化膜层的形成与生长机制[J].中国有色金属学报,2010(10):1949-1954. |
| [11] | 蒋百灵,刘东杰.制约微弧氧化技术应用开发的几个科学问题[J].中国有色金属学报,2011(10):2402-2407. |
| [12] | 刘亚萍,段良辉,马淑仙,潘俊德,崔彩娥,缪强.Al2O3粉末对镁合金微弧氧化陶瓷膜的显微结构及其耐蚀性的影响[J].中国腐蚀与防护学报,2007(04):202-205. |
| [13] | M.S.Vasil'eva;V.S.Rudnev;L.M.Tyrina;N.B.Kondrikov;A.N.Budina .Composition and Catalytic Activity of Plasma-Electrolytic Manganese Oxide Films on Titanium,Modified with Silver Compounds[J].Russian journal of applied chemistry,2005(11):1859-1863. |
| [14] | 邵忠财,李晓丹,苏会东,魏守强,翟玉春.微弧氧化+电解液修饰法制备TiO2薄膜的光催化性能[J].金属学报,2008(10):1238-1242. |
| [15] | 罗平,徐南平.铜系催化剂的研制及其在H2O2催化氧化中的应用研究[J].水处理技术,2006(12):44-46,50. |
| [16] | 王丹军,郭莉,李东升,付峰,王文亮,闰宏涛.CuO纳米粒子的谱学特性研究[J].光谱学与光谱分析,2008(04):788-792. |
| [17] | 蒋晓原,周仁贤,袁骏,吕光烈,郑小明.CuO/CeO2催化剂的催化氧化性能及其表征[J].中国稀土学报,2002(02):111-115. |
- 下载量()
- 访问量()
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%