Preparation of Transparent TiO<sub>2</sub> Nanoporous Coating with Highly Photocatalytic Activity by Anodizing Ti Film with Loose Structure
The Ti film with special structure was deposited onto glass substrate by magnetron sputtering, then via the process of electrochemical anodization and annealing, a transparent TiO<sub>2</sub> nanoporous coating (denoted as TNP) with high photocatalytic activity can be directly formed on...
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | zho |
| Published: |
Journal of Materials Engineering
2016-07-01
|
| Series: | Cailiao gongcheng |
| Subjects: | |
| Online Access: | http://jme.biam.ac.cn/CN/10.11868/j.issn.1001-4381.2016.07.017 |
| _version_ | 1828074953947217920 |
|---|---|
| author | LIANG Yin LI Peng PEI Wang DUAN Jin-hui HUANG Feng ZHAO Kun-yu |
| author_facet | LIANG Yin LI Peng PEI Wang DUAN Jin-hui HUANG Feng ZHAO Kun-yu |
| author_sort | LIANG Yin |
| collection | DOAJ |
| description | The Ti film with special structure was deposited onto glass substrate by magnetron sputtering, then via the process of electrochemical anodization and annealing, a transparent TiO<sub>2</sub> nanoporous coating (denoted as TNP) with high photocatalytic activity can be directly formed on glass substrate. The crystal structure of the TNP was detected by X-ray diffractometry (XRD) and the morphology of the coating was observed by scanning electron microscopy (SEM). The transmittance, wettability and adhesion of TNP were investigated by UV-Vis spectrophotometer, contact angle meter and scratch tester respectively. Finally, the photocatalytic activity of TNP was evaluated by degradation of methylene blue solution under UV illumination. The results show that the prepared TNP coating has a nanoporous structure and only anatase can be found after annealing, the transmittance of TNP coating can reach 80% or more in visible region, with a super hydrophilic surface (contact angle<6°) and the adhesion strength between TNP coating and glass substrate is 2.9N; the degradation rate for methylene blue (<i>C</i><sub>0</sub>=1×10<sup>-5</sup>mol/L) can reach 94% in 2 hours and the photocatalysis reaction rate constant is 1.47h<sup>-1</sup>. |
| first_indexed | 2024-04-11T01:50:50Z |
| format | Article |
| id | doaj.art-5106828e258241f7b85b5bcbfda4b637 |
| institution | Directory Open Access Journal |
| issn | 1001-4381 1001-4381 |
| language | zho |
| last_indexed | 2024-04-11T01:50:50Z |
| publishDate | 2016-07-01 |
| publisher | Journal of Materials Engineering |
| record_format | Article |
| series | Cailiao gongcheng |
| spelling | doaj.art-5106828e258241f7b85b5bcbfda4b6372023-01-03T06:26:50ZzhoJournal of Materials EngineeringCailiao gongcheng1001-43811001-43812016-07-014479910610.11868/j.issn.1001-4381.2016.07.017201607017Preparation of Transparent TiO<sub>2</sub> Nanoporous Coating with Highly Photocatalytic Activity by Anodizing Ti Film with Loose StructureLIANG Yin0LI Peng1PEI Wang2DUAN Jin-hui3HUANG Feng4ZHAO Kun-yu5School of Material Science and Engineering, Kunming University of Science and Technology, Kunming 650093, ChinaNingbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, Zhejiang, ChinaSchool of Material Science and Engineering, Kunming University of Science and Technology, Kunming 650093, ChinaSchool of Material Science and Engineering, Kunming University of Science and Technology, Kunming 650093, ChinaNingbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, Zhejiang, ChinaSchool of Material Science and Engineering, Kunming University of Science and Technology, Kunming 650093, ChinaThe Ti film with special structure was deposited onto glass substrate by magnetron sputtering, then via the process of electrochemical anodization and annealing, a transparent TiO<sub>2</sub> nanoporous coating (denoted as TNP) with high photocatalytic activity can be directly formed on glass substrate. The crystal structure of the TNP was detected by X-ray diffractometry (XRD) and the morphology of the coating was observed by scanning electron microscopy (SEM). The transmittance, wettability and adhesion of TNP were investigated by UV-Vis spectrophotometer, contact angle meter and scratch tester respectively. Finally, the photocatalytic activity of TNP was evaluated by degradation of methylene blue solution under UV illumination. The results show that the prepared TNP coating has a nanoporous structure and only anatase can be found after annealing, the transmittance of TNP coating can reach 80% or more in visible region, with a super hydrophilic surface (contact angle<6°) and the adhesion strength between TNP coating and glass substrate is 2.9N; the degradation rate for methylene blue (<i>C</i><sub>0</sub>=1×10<sup>-5</sup>mol/L) can reach 94% in 2 hours and the photocatalysis reaction rate constant is 1.47h<sup>-1</sup>.http://jme.biam.ac.cn/CN/10.11868/j.issn.1001-4381.2016.07.017Ti filmTiO<sub>2</sub> nanoporetransparentphotocatalysishydrophilic |
| spellingShingle | LIANG Yin LI Peng PEI Wang DUAN Jin-hui HUANG Feng ZHAO Kun-yu Preparation of Transparent TiO<sub>2</sub> Nanoporous Coating with Highly Photocatalytic Activity by Anodizing Ti Film with Loose Structure Cailiao gongcheng Ti film TiO<sub>2</sub> nanopore transparent photocatalysis hydrophilic |
| title | Preparation of Transparent TiO<sub>2</sub> Nanoporous Coating with Highly Photocatalytic Activity by Anodizing Ti Film with Loose Structure |
| title_full | Preparation of Transparent TiO<sub>2</sub> Nanoporous Coating with Highly Photocatalytic Activity by Anodizing Ti Film with Loose Structure |
| title_fullStr | Preparation of Transparent TiO<sub>2</sub> Nanoporous Coating with Highly Photocatalytic Activity by Anodizing Ti Film with Loose Structure |
| title_full_unstemmed | Preparation of Transparent TiO<sub>2</sub> Nanoporous Coating with Highly Photocatalytic Activity by Anodizing Ti Film with Loose Structure |
| title_short | Preparation of Transparent TiO<sub>2</sub> Nanoporous Coating with Highly Photocatalytic Activity by Anodizing Ti Film with Loose Structure |
| title_sort | preparation of transparent tio sub 2 sub nanoporous coating with highly photocatalytic activity by anodizing ti film with loose structure |
| topic | Ti film TiO<sub>2</sub> nanopore transparent photocatalysis hydrophilic |
| url | http://jme.biam.ac.cn/CN/10.11868/j.issn.1001-4381.2016.07.017 |
| work_keys_str_mv | AT liangyin preparationoftransparenttiosub2subnanoporouscoatingwithhighlyphotocatalyticactivitybyanodizingtifilmwithloosestructure AT lipeng preparationoftransparenttiosub2subnanoporouscoatingwithhighlyphotocatalyticactivitybyanodizingtifilmwithloosestructure AT peiwang preparationoftransparenttiosub2subnanoporouscoatingwithhighlyphotocatalyticactivitybyanodizingtifilmwithloosestructure AT duanjinhui preparationoftransparenttiosub2subnanoporouscoatingwithhighlyphotocatalyticactivitybyanodizingtifilmwithloosestructure AT huangfeng preparationoftransparenttiosub2subnanoporouscoatingwithhighlyphotocatalyticactivitybyanodizingtifilmwithloosestructure AT zhaokunyu preparationoftransparenttiosub2subnanoporouscoatingwithhighlyphotocatalyticactivitybyanodizingtifilmwithloosestructure |