Visible Light-Induced Photocatalyst with Au/TiO<sub>2</sub> Nanocomposites Fabricated through Pulsed Laser-Induced Photolysis
Gold–titanium oxide nanocomposites (Au–TiO<sub>2</sub> NCPs) were fabricated through pulsed laser-induced photolysis (PIPS) and verified to be usable for the visible light catalytic degradation of methylene blue (MB). The PIPS method can produce a sufficient amount of NCPs quickly and ha...
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MDPI AG
2022-05-01
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| Series: | Catalysts |
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| Online Access: | https://www.mdpi.com/2073-4344/12/5/564 |
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| author | Bing-Yen Wang Ya-Shing Hsiao Pei-Ching Wei Yuan-Tung Liu Chih-Chien Chu Vincent K. S. Hsiao |
| author_facet | Bing-Yen Wang Ya-Shing Hsiao Pei-Ching Wei Yuan-Tung Liu Chih-Chien Chu Vincent K. S. Hsiao |
| author_sort | Bing-Yen Wang |
| collection | DOAJ |
| description | Gold–titanium oxide nanocomposites (Au–TiO<sub>2</sub> NCPs) were fabricated through pulsed laser-induced photolysis (PIPS) and verified to be usable for the visible light catalytic degradation of methylene blue (MB). The PIPS method can produce a sufficient amount of NCPs quickly and has potential to be commercialized. In contrast to other studies, we clarified the optical spectrum of the light sources, including peak power, bandwidth, and total intensity used for photodegradation reactions and discovered that the photodegradation efficiency of the produced Au–TiO<sub>2</sub> NCPs in the wavelength range of 405 nm could reach 37% in 30 min due to the charge transfer between Au and TiO<sub>2</sub>. The control experiment shows that the addition of individual Au and TiO<sub>2</sub> nanoparticles (NPs) to an MB solution has no enhancement of degradation ability under visible light illumination. The photodegradation of Au–TiO<sub>2</sub> NCPs can be further improved by increasing the concentrations of auric acid and TiO<sub>2</sub> NPs in a precursor under PIPS fabrication. |
| first_indexed | 2024-03-10T03:10:32Z |
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| id | doaj.art-501a46fe2e81468383e989783a14988d |
| institution | Directory Open Access Journal |
| issn | 2073-4344 |
| language | English |
| last_indexed | 2024-03-10T03:10:32Z |
| publishDate | 2022-05-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Catalysts |
| spelling | doaj.art-501a46fe2e81468383e989783a14988d2023-11-23T10:26:43ZengMDPI AGCatalysts2073-43442022-05-0112556410.3390/catal12050564Visible Light-Induced Photocatalyst with Au/TiO<sub>2</sub> Nanocomposites Fabricated through Pulsed Laser-Induced PhotolysisBing-Yen Wang0Ya-Shing Hsiao1Pei-Ching Wei2Yuan-Tung Liu3Chih-Chien Chu4Vincent K. S. Hsiao5Division of Thoracic Surgery, Department of Surgery, Changhua Christian Hospital, Changhua 500, TaiwanDepartment of Applied Materials and Optoelectronic Engineering, National Chi Nan University, Nantou 54561, TaiwanDepartment of Applied Materials and Optoelectronic Engineering, National Chi Nan University, Nantou 54561, TaiwanDepartment of Medical Applied Chemistry, Chung Shan Medical University, Taichung 40201, TaiwanDepartment of Medical Applied Chemistry, Chung Shan Medical University, Taichung 40201, TaiwanDepartment of Applied Materials and Optoelectronic Engineering, National Chi Nan University, Nantou 54561, TaiwanGold–titanium oxide nanocomposites (Au–TiO<sub>2</sub> NCPs) were fabricated through pulsed laser-induced photolysis (PIPS) and verified to be usable for the visible light catalytic degradation of methylene blue (MB). The PIPS method can produce a sufficient amount of NCPs quickly and has potential to be commercialized. In contrast to other studies, we clarified the optical spectrum of the light sources, including peak power, bandwidth, and total intensity used for photodegradation reactions and discovered that the photodegradation efficiency of the produced Au–TiO<sub>2</sub> NCPs in the wavelength range of 405 nm could reach 37% in 30 min due to the charge transfer between Au and TiO<sub>2</sub>. The control experiment shows that the addition of individual Au and TiO<sub>2</sub> nanoparticles (NPs) to an MB solution has no enhancement of degradation ability under visible light illumination. The photodegradation of Au–TiO<sub>2</sub> NCPs can be further improved by increasing the concentrations of auric acid and TiO<sub>2</sub> NPs in a precursor under PIPS fabrication.https://www.mdpi.com/2073-4344/12/5/564visible lightphotocatalystnanocompositegoldtitaniumphotolysis |
| spellingShingle | Bing-Yen Wang Ya-Shing Hsiao Pei-Ching Wei Yuan-Tung Liu Chih-Chien Chu Vincent K. S. Hsiao Visible Light-Induced Photocatalyst with Au/TiO<sub>2</sub> Nanocomposites Fabricated through Pulsed Laser-Induced Photolysis Catalysts visible light photocatalyst nanocomposite gold titanium photolysis |
| title | Visible Light-Induced Photocatalyst with Au/TiO<sub>2</sub> Nanocomposites Fabricated through Pulsed Laser-Induced Photolysis |
| title_full | Visible Light-Induced Photocatalyst with Au/TiO<sub>2</sub> Nanocomposites Fabricated through Pulsed Laser-Induced Photolysis |
| title_fullStr | Visible Light-Induced Photocatalyst with Au/TiO<sub>2</sub> Nanocomposites Fabricated through Pulsed Laser-Induced Photolysis |
| title_full_unstemmed | Visible Light-Induced Photocatalyst with Au/TiO<sub>2</sub> Nanocomposites Fabricated through Pulsed Laser-Induced Photolysis |
| title_short | Visible Light-Induced Photocatalyst with Au/TiO<sub>2</sub> Nanocomposites Fabricated through Pulsed Laser-Induced Photolysis |
| title_sort | visible light induced photocatalyst with au tio sub 2 sub nanocomposites fabricated through pulsed laser induced photolysis |
| topic | visible light photocatalyst nanocomposite gold titanium photolysis |
| url | https://www.mdpi.com/2073-4344/12/5/564 |
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