Photocatalytic properties of TiO2 nanostructures of different morphology modified with various modifiers

Estonian Academy of Sciences. Proceedings

Reinis Drunka¹ 

关键词: photocatalysis;    TiO2;    nanofibres;    coatings;    nanopores;    nanotubes.;   

DOI  :  10.3176/proc.2019.2.08

学科分类：化学（综合）

来源: Teaduste Akadeemia Kirjastus

【 摘 要 】

Synthesis of TiO2 nanotube coatings, nanoporous coatings, and nanofibres by using titanium anodizing, microplasmaelectrolytic oxidation, and microwave-assisted hydrothermal synthesis in different regimes was studied. Optimal conditions foreach of the methods for obtaining nanostructures were determined. The obtained TiO2 nanofibres and nanotube and nanoporouscoatings were modified with Au, Ag, Pt, Pd, S, WO3, and Eu2O3, nanoparticles to improve photocatalytic activity under ultravioletand visible light irradiation. Photocatalytic properties of photocatalysts were tested by the degradation of methylene blue solutionunder the influence of ultraviolet and visible light irradiation. The obtained modified photocatalysts exhibited higher photocatalytic activity than pure TiO2 nanostructured photocatalysts. Properties of modified photocatalysts obtained with different methodsare compared.

【 授权许可】

CC BY-NC