材料科学

Vol.6 No.3 (May 2016)

阳极氧化黄铜构建纳米片氧化物薄膜及其光电化学性能
Preparation of Nanosheet Copper Oxide Films by Anodic Oxidation of a Brass and Their Photoelectrochemical Performance

 

作者:

胡 浩 , 肖仕清 , 许 敏 , 牛振江 :浙江师范大学物理化学研究所,固体表面反应化学浙江省重点实验室,先进催化材料教育部重点实验室,浙江 金华

 

关键词:

铜锌合金NaOH氧化膜光电流Zinc-Copper Alloy NaOH Oxide Film Photocurrent

 

摘要:

在55℃的1.0~10.0 mol∙L−1 NaOH溶液中,通过10 mA∙cm−2恒电流阳极氧化和空气中150℃热处理,在黄铜基底表面制备出具有纳米颗粒或纳米片形貌的铜氧化物薄膜。利用XRD、SEM和Raman光谱等分析了氧化膜的结构和形貌。在0.1 mol∙L−1 Na2SO4溶液中测试了氧化膜在零偏压下的可见光光电流。结果表明,黄铜在3.0~5.0 mol∙L−1的NaOH溶液中经阳极氧化,可制备出具有纳米片形貌的Cu2O/CuO复合氧化物薄膜,在零偏压下的光电流密度分别为1.9和1.4 μA∙cm−2

Copper oxide films with nanoparticles or nanosheets morphologies were prepared on the surface of brass substrates through anodic oxidation of the brass at 10 mA∙cm−2 in 1.0 - 10.0 mol∙L−1 NaOH solutions, at 55˚C, then heated at 150˚C in air. The structures and morphologies of the oxide films were analysed with XRD, SEM and Raman spectroscopy. The photocurrents of the films were tested in 0.1 mol∙L−1 Na2SO4 solution under a visible light and zero bias. Results show that nanosheet CuO/Cu2O composite films can be obtained by anodic oxidation of the brass in 3.0 - 5.0 mol∙L−1 NaOH solutions, and the films generate the photocurrents of 1.9 and 1.4 μA∙cm−2, respectively, at zero bias.

文章引用:

胡 浩 , 肖仕清 , 许 敏 , 牛振江 (2016) 阳极氧化黄铜构建纳米片氧化物薄膜及其光电化学性能。 材料科学, 6, 181-188. doi: 10.12677/MS.2016.63023

 

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