【摘要】 采用浸渍-沉积方法在电沉积的多孔Cu薄膜上修饰一层纳米SnO₂,经低温热氧化处理制备出多孔Cu₂O/SnO₂复合多层薄膜。运用扫描电子显微镜（SEM）、透射电子显微镜（TEM）、X-射线粉末衍射仪（XRD）、紫外可见漫反射光谱（UV-vis DRS）和荧光光谱（FS）技术表征了薄膜的结构、形貌和光学性质。测试了薄膜在可见光下降解罗丹明B（RhB）的性能。结果表明,在30℃的0.2 mol/L CuSO₄+1.5 mol/L H₂SO₄镀液中,以1.5 A/cm²电流沉积20 s得到的多孔Cu薄膜,在SnO₂溶胶中浸渍10 s并重复5次,再经空气气氛下100℃焙烧30 min,制得的多孔复合薄膜显示良好的可见光催化降解RhB的性能。更多还原

【Abstract】 The dip-deposited method was used to coat the self-made SnO₂ sol on the porous Cu films electrodeposited.And the porous Cu₂O/ SnO₂ films were prepared by heated the films in air.The porous films were characterized with scanning electron microscopy（SEM）Transmission Electron Microscope（TEM）,X-ray diffractometry（XRD）,UV-vis diffuse reflectance spectroscopic（UV-vis DRS）and Fluorescence Spectrometer（FS）.The photocatalytic performance of porous Cu₂O/SnO₂ films were tested through photodegradation of rhodamine B illuminated with visible light.The results reveal that the porous films shown excellent activity of visible light photocatalytic degradation of rhodamine B.And the optimal condition for preparation of the Cu₂O/SnO₂ films are that the porous Cu films electrodeposited in a solution containing 0.2 mol/L CuSO₄,1.5 mol/L H₂SO₄ at 30℃,and at 1.5 A/cm² for 20 s,then diped in the self-made SnO₂ sol for 10s and 5 times repeatedly, follow by heated at 100℃ for 30 min in air.更多还原