Facile Synthesis of Anatase–Rutile Diphase N-doped TiO<sub>2</sub> Nanoparticles with Excellent Visible Light Photocatalytic Activity
To further boost the charge separation and photocatalytic activity of TiO<sub>2</sub> under visible light, the anatase–rutile mixed-phase nitrogen-doped (N-doped) TiO<sub>2</sub> nanoparticles were successfully synthesized through a facile one-step calcining procedure using T...
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MDPI AG
2020-10-01
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| Online Access: | https://www.mdpi.com/2073-4344/10/10/1126 |
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| author | Jun Liu Xuli Li Haobo Hou Min Zhou |
| author_facet | Jun Liu Xuli Li Haobo Hou Min Zhou |
| author_sort | Jun Liu |
| collection | DOAJ |
| description | To further boost the charge separation and photocatalytic activity of TiO<sub>2</sub> under visible light, the anatase–rutile mixed-phase nitrogen-doped (N-doped) TiO<sub>2</sub> nanoparticles were successfully synthesized through a facile one-step calcining procedure using TiN as raw materials. The crystal phases, morphologies, chemical compositions, textural structures, and optical properties of as-obtained N-doped TiO<sub>2</sub> were characterized by the corresponding analytical techniques. The photocatalytic activities of as-fabricated samples were evaluated by degrading 4-chlorophenol (4-CP) and methylene blue (MB) aqueous solution under visible light irradiation. The results revealed that the ratio of rutile to anatase increased with the improvement of sintering temperature, and the sample prepared at 500 °C had the best photocatalytic activity. This might be because it possessed the most appropriate rutile/anatase proportion as well as the nitrogen doping. The transient photocurrent responses, photoluminescence spectra (PL) measurements, and active species trapping experiments were implemented to disclose the photocatalytic mechanism. This work will provide a further insight into the synthesis of highly efficient N-doped TiO<sub>2</sub> photocatalysts for organic contaminant removal. |
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| issn | 2073-4344 |
| language | English |
| last_indexed | 2024-03-10T15:54:34Z |
| publishDate | 2020-10-01 |
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| spelling | doaj.art-0bd975e3f7a94be4b15a5e7c6fe51a022023-11-20T15:44:36ZengMDPI AGCatalysts2073-43442020-10-011010112610.3390/catal10101126Facile Synthesis of Anatase–Rutile Diphase N-doped TiO<sub>2</sub> Nanoparticles with Excellent Visible Light Photocatalytic ActivityJun Liu0Xuli Li1Haobo Hou2Min Zhou3School of Resource and Environment Science, Wuhan University, Wuhan 430072, ChinaSchool of Resource and Environment Science, Wuhan University, Wuhan 430072, ChinaSchool of Resource and Environment Science, Wuhan University, Wuhan 430072, ChinaSchool of Resource and Environment Science, Wuhan University, Wuhan 430072, ChinaTo further boost the charge separation and photocatalytic activity of TiO<sub>2</sub> under visible light, the anatase–rutile mixed-phase nitrogen-doped (N-doped) TiO<sub>2</sub> nanoparticles were successfully synthesized through a facile one-step calcining procedure using TiN as raw materials. The crystal phases, morphologies, chemical compositions, textural structures, and optical properties of as-obtained N-doped TiO<sub>2</sub> were characterized by the corresponding analytical techniques. The photocatalytic activities of as-fabricated samples were evaluated by degrading 4-chlorophenol (4-CP) and methylene blue (MB) aqueous solution under visible light irradiation. The results revealed that the ratio of rutile to anatase increased with the improvement of sintering temperature, and the sample prepared at 500 °C had the best photocatalytic activity. This might be because it possessed the most appropriate rutile/anatase proportion as well as the nitrogen doping. The transient photocurrent responses, photoluminescence spectra (PL) measurements, and active species trapping experiments were implemented to disclose the photocatalytic mechanism. This work will provide a further insight into the synthesis of highly efficient N-doped TiO<sub>2</sub> photocatalysts for organic contaminant removal.https://www.mdpi.com/2073-4344/10/10/1126N-doped TiO<sub>2</sub>charge separationphotocatalytic activity |
| spellingShingle | Jun Liu Xuli Li Haobo Hou Min Zhou Facile Synthesis of Anatase–Rutile Diphase N-doped TiO<sub>2</sub> Nanoparticles with Excellent Visible Light Photocatalytic Activity Catalysts N-doped TiO<sub>2</sub> charge separation photocatalytic activity |
| title | Facile Synthesis of Anatase–Rutile Diphase N-doped TiO<sub>2</sub> Nanoparticles with Excellent Visible Light Photocatalytic Activity |
| title_full | Facile Synthesis of Anatase–Rutile Diphase N-doped TiO<sub>2</sub> Nanoparticles with Excellent Visible Light Photocatalytic Activity |
| title_fullStr | Facile Synthesis of Anatase–Rutile Diphase N-doped TiO<sub>2</sub> Nanoparticles with Excellent Visible Light Photocatalytic Activity |
| title_full_unstemmed | Facile Synthesis of Anatase–Rutile Diphase N-doped TiO<sub>2</sub> Nanoparticles with Excellent Visible Light Photocatalytic Activity |
| title_short | Facile Synthesis of Anatase–Rutile Diphase N-doped TiO<sub>2</sub> Nanoparticles with Excellent Visible Light Photocatalytic Activity |
| title_sort | facile synthesis of anatase rutile diphase n doped tio sub 2 sub nanoparticles with excellent visible light photocatalytic activity |
| topic | N-doped TiO<sub>2</sub> charge separation photocatalytic activity |
| url | https://www.mdpi.com/2073-4344/10/10/1126 |
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