Photo-Induced Super-hydrophilic Thin Films on Quartz Glass by UV Irradiation of Precursor Films Involving a Ti(IV) Complex at Room Temperature
Abstract
:1. Introduction
2. Materials and Methods
2.1. Materials
2.2. Preparation of Precursor Solution Involving Ti(IV) Complex
2.3. Fabrication of Precursor Film F0 and Ultraviolet (UV)-Irradiated Thin Films Fx
2.4. Characterization of Precursor Solution S, Precursor Film F0, and UV-Irradiated Films Fx
2.4.1. Optical Characterization of S, F0, and Fx
2.4.2. X-Ray Diffraction (XRD) Patterns of F0 and Fx
2.4.3. Chemical Characterization of F0 and Fx
2.4.4. Surface Morphology and Film Thickness of Fx
2.4.5. Pencil Scratching Test for Adhesion Strength of Fx
2.4.6. Photo-Induced Hydrophilicity of Fx
3. Results
3.1. Absorption Spectrum of S
3.2. Optical Properties of Precursor Film F0 and UV-Irradiated Films Fx
3.3. XRD Patterns of F0 and Fx
3.4. Fourier Transform-Infrared (FT-IR) Spectra of F0 and UV-Irradiated Films Fx, and Quartz Glass Substrate
3.5. X-Ray Photoelectron Spectroscopy (XPS) Spectra of UV-Irradiated Film F4
3.6. Surface Morphology, Film Thickness, and Adhesion Strength of UV-Irradiated Films Fx
3.7. Contact Angles of Water Droplet on UV-Irradiated Films Fx
4. Discussion
4.1. Precursor Film Involving Ti(IV) Complex of Oxalato and Peroxo Ligands with Butylamine
4.2. Conversion of Precursor Film Involving Ti(IV) Complex Salt to Amorphous Thin Films by Irradiating with Weak UV Light
4.3. Optical and Mechanical Properties of the Amorphous Thin Films
4.4. Photo-Induced Super-Hydrophilicity of the Amorphous Thin Films
5. Conclusions
Author Contributions
Funding
Acknowledgments
Conflicts of Interest
References
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Sample | F1 | F2 | F4 | F8 | F16 |
---|---|---|---|---|---|
Refractive index | 1.70 ± 0.01 | 1.79 ± 0.01 | 1.78 ± 0.01 | 1.79 ± 0.01 | 1.79 ± 0.01 |
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Wu, H.-J.; Tanabe, K.; Nagai, H.; Sato, M. Photo-Induced Super-hydrophilic Thin Films on Quartz Glass by UV Irradiation of Precursor Films Involving a Ti(IV) Complex at Room Temperature. Materials 2019, 12, 348. https://doi.org/10.3390/ma12030348
Wu H-J, Tanabe K, Nagai H, Sato M. Photo-Induced Super-hydrophilic Thin Films on Quartz Glass by UV Irradiation of Precursor Films Involving a Ti(IV) Complex at Room Temperature. Materials. 2019; 12(3):348. https://doi.org/10.3390/ma12030348
Chicago/Turabian StyleWu, Hsiang-Jung, Kota Tanabe, Hiroki Nagai, and Mitsunobu Sato. 2019. "Photo-Induced Super-hydrophilic Thin Films on Quartz Glass by UV Irradiation of Precursor Films Involving a Ti(IV) Complex at Room Temperature" Materials 12, no. 3: 348. https://doi.org/10.3390/ma12030348