Hydrothermally activated TiO2 nanoparticles with a C-dot/g-C3N4 heterostructure for photocatalytic enhancement
| Autor: | Peiyuan Guan, Tianhao Ji, Zhong-yi Chen, Da-jian Jv, Zhemi Xu |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Materials science
Nanocomposite General Engineering Graphitic carbon nitride Bioengineering 02 engineering and technology General Chemistry 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences Atomic and Molecular Physics and Optics Hydrothermal circulation 0104 chemical sciences chemistry.chemical_compound chemistry Chemical engineering Superhydrophilicity Rhodamine B Photocatalysis General Materials Science 0210 nano-technology Photodegradation Ternary operation |
| Zdroj: | Nanoscale Advances. 3:4089-4097 |
| ISSN: | 2516-0230 |
| DOI: | 10.1039/d1na00213a |
| Popis: | Dye degradation via photocatalysis technology has been investigated intensively to tackle environmental issues and energy crisis concerns. In this study, a newly designed ternary photocatalyst was facilely prepared by a simple one-pot hydrothermal process by directly mixing TiO2 nanoparticles with carbon dots (C-dots) and graphitic carbon nitride (g-C3N4). The optimized precursor treatments and heterostructure components show significantly enhanced photodegradation activity towards organic dyes Rhodamine B (RhB) and methylene blue (MB). Excellent photocatalytic activities were achieved owing to the better attachment of anatase-type TiO2 nanoparticle-aggregations to the C-dots/g-C3N4 (CC) nanocomposite, which impressively displays superhydrophilicity by employing the hydrothermal activation process. FT-IR spectra revealed that the hydrothermal treatment could remarkably increase the coupling interactions between TiO2 nanoparticles and the CC nanosheets within the ternary catalyst, enhancing the photocatalytic activity. Thus, it was concluded that this ternary photocatalyst is highly suitable for the remediation of dye-contaminated wastewater. |
| Databáze: | OpenAIRE |
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