One‐step synthesis of Cu/N co‐doped TiO2 nanocomposites with enhanced photocatalytic activities under visible‐light irradiation
| Autor: | Dayu Li, Zhongyang Liang, Wentao Zhang, Chao Zhang |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Structure of solid clusters
nanoparticles nanotubes and nanostructured materials Microstructure Adsorption and desorption kinetics evaporation and condensation Low‐dimensional structures: growth structure and nonelectronic properties Crystal growth from solution Photolysis and photodissociation by IR UV and visible radiation Chemical technology TP1-1185 Materials of engineering and construction. Mechanics of materials TA401-492 |
| Zdroj: | Micro & Nano Letters, Vol 16, Iss 12, Pp 573-581 (2021) |
| Druh dokumentu: | article |
| ISSN: | 1750-0443 |
| DOI: | 10.1049/mna2.12075 |
| Popis: | Abstract In this research, a one‐step hydrothermal method is used to prepare Cu‐doped, N‐doped and Cu/N co‐doped titanium dioxide (TiO2) composites, and the doping effects on the structures, absorption and photocatalytic performance are investigated. All the products are in anatase structure. The substitution of Cu atoms in TiO2 and distribution of N in the crystal lattice have been identified by X‐ray diffraction, which lead to the decrease of grain size. Hollow micro‐nanospheres of Cu‐TiO2 samples, which make them have strong dark adsorption properties, can be observed. Cu/N co‐doped samples exhibit the maximum light absorption in the visible light region, and a red‐shift which is responsible for narrow band gap energy owing to the presence of N‐atoms and Cu‐atoms in the TiO2 lattice. The synergistic effect of Cu and N results in the enhanced photocatalytic activity for degradation of methyl orange under visible light irradiation. |
| Databáze: | Directory of Open Access Journals |
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