Three-Dimensional CuO/TiO2 Hybrid Nanorod Arrays Prepared by Electrodeposition in AAO Membranes as an Excellent Fenton-Like Photocatalyst for Dye Degradation

被引：22

作者：

Date, Manisha Kondiba ^{[1
,2
,3
]}

Yang, Li-Heng ^{[1
,2
,3
]}

Yang, Tzu-Yi ^{[1
,2
,3
]}

Wang, Kuang-ye ^{[1
,2
,3
]}

Su, Teng-Yu ^{[1
,2
,3
]}

Wu, Ding-Chou ^{[1
,2
,3
]}

Cheuh, Yu-Lun ^{[1
,2
,3
]}

机构：

[1] Natl Tsing Hua Univ, Dept Mat Sci & Engn, Hsinchu 30013, Taiwan

[2] Natl Sun Yat Sen Univ, Dept Phys, Kaohsiung 80424, Taiwan

[3] Natl Tsing Hua Univ, Frontier Res Ctr Fundamental & Appl Sci Matters, Hsinchu 30013, Taiwan

来源：

NANOSCALE RESEARCH LETTERS | 2020年 / 15卷 / 01期

关键词：

Anodic aluminum oxide; Semiconductor nanorod array; Photo-Fenton-like reaction; Template-assisted electrodeposition; Dye photo-degradation; ANODIC ALUMINUM-OXIDE; HIGH-ASPECT-RATIO; RHODAMINE-B; HETEROGENEOUS CATALYST; ORGANIC POLLUTANTS; NANOWIRE ARRAYS; POROUS ALUMINA; FABRICATION; MECHANISM; WATER;

D O I：

10.1186/s11671-020-3266-6

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Three-dimensional (3D) CuO/TiO2 hybrid heterostructure nanorod arrays (NRs) with noble-metal-free composition, fabricated by template-assisted low-cost processes, were used as the photo-Fenton-like catalyst for dye degradation. Here, CuO NRs were deposited into anodic aluminum oxide templates by electrodeposition method annealed at various temperatures, followed by deposition of TiO2 thin films through E-gun evaporation, resulting in the formation of CuO/TiO2 p-n heterojunction. The distribution of elements and compositions of the CuO/TiO2 p-n heterojunction were analyzed by EDS mapping and EELS profiles, respectively. In the presence of H2O2, CuO/TiO2 hybrid structure performed more efficiently than CuO NRs for Rhodamine B degradation under the irradiation of 500-W mercury-xenon arc lamp. This study demonstrated the effect of length of CuO NRs, on the photo-degradation performance of CuO NRs as well as CuO/TiO2 heterostructure. The optimized CuO/TiO2 hybrid NR array structure exhibited the highest photo-degradation activity, and the mechanism and role of photo-Fenton acting as the catalyst in photo-degradation of dye was also investigated.

引用

页数：12

共 77 条

[1] Fabrication of cobalt-nickel binary nanowires in a highly ordered alumina template via AC electrodeposition [J].