Influence of the Structure of Hydrothermal-Synthesized TiO<sub>2</sub> Nanowires Formed by Annealing on the Photocatalytic Reduction of CO<sub>2</sub> in H<sub>2</sub>O Vapor
Andrey M. Tarasov,
Larisa I. Sorokina,
Daria A. Dronova,
Olga Volovlikova,
Alexey Yu. Trifonov,
Sergey S. Itskov,
Aleksey V. Tregubov,
Elena N. Shabaeva,
Ekaterina S. Zhurina,
Sergey V. Dubkov,
Dmitry V. Kozlov,
Dmitry Gromov
Affiliations
Andrey M. Tarasov
Institute of Advanced Materials and Technologies, National Research University of Electronic Technology MIET, Bld. 1, Shokin Square, Zelenograd, 124498 Moscow, Russia
Larisa I. Sorokina
Institute of Advanced Materials and Technologies, National Research University of Electronic Technology MIET, Bld. 1, Shokin Square, Zelenograd, 124498 Moscow, Russia
Daria A. Dronova
Institute of Advanced Materials and Technologies, National Research University of Electronic Technology MIET, Bld. 1, Shokin Square, Zelenograd, 124498 Moscow, Russia
Olga Volovlikova
Institute of Advanced Materials and Technologies, National Research University of Electronic Technology MIET, Bld. 1, Shokin Square, Zelenograd, 124498 Moscow, Russia
Alexey Yu. Trifonov
Institute of Advanced Materials and Technologies, National Research University of Electronic Technology MIET, Bld. 1, Shokin Square, Zelenograd, 124498 Moscow, Russia
Sergey S. Itskov
Institute of Advanced Materials and Technologies, National Research University of Electronic Technology MIET, Bld. 1, Shokin Square, Zelenograd, 124498 Moscow, Russia
Aleksey V. Tregubov
S.P. Kapitsa Scientific Technological Research Institute, Ulyanovsk State University, 42 Leo Tolstoy Street, 432017 Ulyanovsk, Russia
Elena N. Shabaeva
S.P. Kapitsa Scientific Technological Research Institute, Ulyanovsk State University, 42 Leo Tolstoy Street, 432017 Ulyanovsk, Russia
Ekaterina S. Zhurina
S.P. Kapitsa Scientific Technological Research Institute, Ulyanovsk State University, 42 Leo Tolstoy Street, 432017 Ulyanovsk, Russia
Sergey V. Dubkov
Institute of Advanced Materials and Technologies, National Research University of Electronic Technology MIET, Bld. 1, Shokin Square, Zelenograd, 124498 Moscow, Russia
Dmitry V. Kozlov
S.P. Kapitsa Scientific Technological Research Institute, Ulyanovsk State University, 42 Leo Tolstoy Street, 432017 Ulyanovsk, Russia
Dmitry Gromov
Institute of Advanced Materials and Technologies, National Research University of Electronic Technology MIET, Bld. 1, Shokin Square, Zelenograd, 124498 Moscow, Russia
The present study investigates the photocatalytic properties of hydrothermally synthesized TiO2 nanowires (NWs) for CO2 reduction in H2O vapor. It has been demonstrated that TiO2 NWs, thermally treated at 500–700 °C, demonstrate an almost tenfold higher yield of products compared to the known commercial powder TiO2 P25. It has been found that the best material is a combination of anatase, TiO2-B and rutile. The product yield increases with increasing heat treatment temperature of TiO2 NWs. This is associated with an increase in the degree of crystallinity of the material. It is shown that the best product yield of the CO2 reduction in H2O vapor is achieved when the TiO2 NW photocatalyst is heated to 100 °C.
