Experimental Investigation on the Effects of Photocatalysis in Ultraviolet-Induced Nanoparticle Colloid Jet Machining
| Autor: | Shengkai Liu, Xiaorong Wang, Xiaozong Song, Shundong Ge |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Materials science
Scanning electron microscope Nanoparticle Polishing 02 engineering and technology polishing efficiency 010402 general chemistry medicine.disease_cause lcsh:Technology 01 natural sciences Article Colloid Machining X-ray photoelectron spectroscopy medicine General Materials Science ultraviolet-induced nanoparticle colloid jet machining lcsh:Microscopy lcsh:QC120-168.85 lcsh:QH201-278.5 lcsh:T 021001 nanoscience & nanotechnology 0104 chemical sciences Chemical engineering lcsh:TA1-2040 adsorption Photocatalysis lcsh:Descriptive and experimental mechanics lcsh:Electrical engineering. Electronics. Nuclear engineering lcsh:Engineering (General). Civil engineering (General) 0210 nano-technology lcsh:TK1-9971 photocatalysis Ultraviolet |
| Zdroj: | Materials Volume 14 Issue 5 Materials, Vol 14, Iss 1070, p 1070 (2021) |
| ISSN: | 1996-1944 |
| Popis: | In this paper, ultraviolet (UV)-induced nanoparticle colloid jet machining is proposed to achieve ultrasmooth surface polishing by using the interaction between nanoparticles and the workpiece surface under the action of the ultraviolet field and the hydrodynamic pressure field. In the process of UV-induced nanoparticle colloid jet machining, the effects of photocatalysis on the interaction between nanoparticles and the workpiece surface need to be further studied in order to better understand the polishing process. This paper presents the interaction between TiO2 nanoparticles and a Si workpiece surface with and without ultraviolet irradiation. Scanning electron microscopy (SEM), Fourier-transform infrared spectroscopy (FT-IR), and X-ray photoelectron spectroscopy (XPS) were applied to investigate the differences in the interaction of TiO2 nanoparticles with Si workpieces. The SEM and XPS results indicate that the photocatalysis of UV light can promote the interaction between TiO2 nanoparticles and a Si surface by creating more interfacial reaction active centers between the TiO2 nanoparticles and the Si workpiece. The FT-IR and XPS spectra show that TiO2 nanoparticles are chemically bonded to the Si workpiece by oxygen-bridging atoms in Ti-O-Si bonds. Due to the effects of photocatalysis, UV-induced nanoparticle colloid jet machining has a higher polishing efficiency than nanoparticle colloid jet machining with the same polishing parameters. |
| Databáze: | OpenAIRE |
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