Ti-Fe2O3/In2O3 as photoactive material: The role of the substrate in photoelectrochemical water oxidation

被引：5
作者：
Szkoda, M. [1 ,2 ,4 ]
Ilnicka, A. [3 ]
Zarach, Z. [1 ]
Roda, D. [1 ]
Nowak, A. P. [1 ,2 ]
Trzcinski, K. [1 ,2 ]
机构：
[1] Gdansk Univ Technol, Fac Chem, Dept Chem & Technol Funct Mat, Narutowicza 11-12, PL-80233 Gdansk, Poland
[2] Gdansk Univ Technol, Adv Mat Ctr, Narutowicza 11-12, PL-80233 Gdansk, Poland
[3] Nicolaus Copernicus Univ Torun, Fac Chem, Gagarina 7, PL-87100 Torun, Poland
[4] Gdansk Univ Technol, Fac Chem, Dept Chem & Technol Funct Mat, Narutowicza 11-12, PL-80233 Gdansk, Poland
来源：
JOURNAL OF ALLOYS AND COMPOUNDS | 2023年 / 960卷
关键词：
Nanocomposites; Photoanodes; Layered structures; Hydrothermal method; Water photooxidation; HIGH PHOTOCATALYTIC ACTIVITY; HEMATITE THIN-FILMS; ALPHA-FE2O3; PERFORMANCE; PHOTOANODE; IMPROVEMENT; STABILITY; EFFICIENCY;
D O I：
10.1016/j.jallcom.2023.170924
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
The layers of Ti-Fe2O3/In2O3 were prepared on the different substrates using hydrothermal method: Ti/TiO2 nanotubes, Ti foil, FTO and FTO/TiO2. Materials were characterized using scanning electron microscopy, XRD, Raman, UV-Vis, and X-ray photoelectron spectroscopy and tested as photoanodes for water oxidation under illumination. The formation of heterojunction on the TiO2 nanotubes increases photocurrent of water oxidation at 0.7 V vs. RHE to over 520 & mu;A/cm2, while Ti/Ti-Fe2O3/In2O3, FTO/Ti-Fe2O3/In2O3, and FTO/TiO2/Ti-Fe2O3/In2O3 exhibit 130, 31 and 152 & mu;A/cm2, respectively. Thus, the work indicates that the presence of TiO2 in the form of nanotubes as a substrate increases the efficiency of photocurrent generation.& COPY; 2023 Elsevier B.V. All rights reserved.
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页数：7
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