Boron-Doped TiO<sub>2</sub>-CNT Nanocomposites with Improved Photocatalytic Efficiency toward Photodegradation of Toluene Gas and Photo-Inactivation of <i>Escherichia coli</i>
An in-situ sol-gel method was used for the synthesis of boron-doped TiO<sub>2</sub>-CNT nanocomposites with varied boron concentrations from 1 to 4 mol%. The synthesized nanocomposites were characterized by various techniques, namely XRD, UV-DRS, TEM, PL, and XPS; all results show that 3...
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MDPI AG
2020-06-01
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| Online Access: | https://www.mdpi.com/2073-4344/10/6/632 |
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| author | Valmiki B. Koli Shyue-Chu Ke Ananta G. Dodamani Shamkumar P. Deshmukh Jung-Sik Kim |
| author_facet | Valmiki B. Koli Shyue-Chu Ke Ananta G. Dodamani Shamkumar P. Deshmukh Jung-Sik Kim |
| author_sort | Valmiki B. Koli |
| collection | DOAJ |
| description | An in-situ sol-gel method was used for the synthesis of boron-doped TiO<sub>2</sub>-CNT nanocomposites with varied boron concentrations from 1 to 4 mol%. The synthesized nanocomposites were characterized by various techniques, namely XRD, UV-DRS, TEM, PL, and XPS; all results show that 3 mol% B-TiO<sub>2</sub>-CNT nanocomposites have superior properties to pure TiO<sub>2</sub>, 3B-TiO<sub>2</sub> nanoparticles, and other nanocomposites. TEM images clearly show the B-TiO<sub>2</sub> nanoparticles decorated on the CNT surface. Photo-luminescence studies confirm that boron doping of up to 3 mol% in TiO<sub>2</sub>-CNT nanocomposites reduces the electron-hole pair recombination rate. The photocatalytic performance of the B-TiO<sub>2</sub>-CNT nanocomposites was tested against the photodegradation of toluene gas and the photocatalytic inactivation of <i>E. coli</i> in the presence of UV and visible light respectively. B-TiO<sub>2</sub>-CNT (3 mol%) nanocomposites show the highest photocatalytic activity. |
| first_indexed | 2024-03-10T19:21:18Z |
| format | Article |
| id | doaj.art-d9e2aee72ddd4852b3d2be0517747b6d |
| institution | Directory Open Access Journal |
| issn | 2073-4344 |
| language | English |
| last_indexed | 2024-03-10T19:21:18Z |
| publishDate | 2020-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Catalysts |
| spelling | doaj.art-d9e2aee72ddd4852b3d2be0517747b6d2023-11-20T03:00:50ZengMDPI AGCatalysts2073-43442020-06-0110663210.3390/catal10060632Boron-Doped TiO<sub>2</sub>-CNT Nanocomposites with Improved Photocatalytic Efficiency toward Photodegradation of Toluene Gas and Photo-Inactivation of <i>Escherichia coli</i>Valmiki B. Koli0Shyue-Chu Ke1Ananta G. Dodamani2Shamkumar P. Deshmukh3Jung-Sik Kim4Department of Materials Science and Engineering, University of Seoul, Seoul 02504, KoreaDepartment of Physics, National Dong Hwa University Shou-Feng, Hualien 97401, TaiwanDepartment of Chemistry, Shivaji University, Kolhapur 416004, IndiaDepartment of Chemistry, Shivaji University, Kolhapur 416004, IndiaDepartment of Materials Science and Engineering, University of Seoul, Seoul 02504, KoreaAn in-situ sol-gel method was used for the synthesis of boron-doped TiO<sub>2</sub>-CNT nanocomposites with varied boron concentrations from 1 to 4 mol%. The synthesized nanocomposites were characterized by various techniques, namely XRD, UV-DRS, TEM, PL, and XPS; all results show that 3 mol% B-TiO<sub>2</sub>-CNT nanocomposites have superior properties to pure TiO<sub>2</sub>, 3B-TiO<sub>2</sub> nanoparticles, and other nanocomposites. TEM images clearly show the B-TiO<sub>2</sub> nanoparticles decorated on the CNT surface. Photo-luminescence studies confirm that boron doping of up to 3 mol% in TiO<sub>2</sub>-CNT nanocomposites reduces the electron-hole pair recombination rate. The photocatalytic performance of the B-TiO<sub>2</sub>-CNT nanocomposites was tested against the photodegradation of toluene gas and the photocatalytic inactivation of <i>E. coli</i> in the presence of UV and visible light respectively. B-TiO<sub>2</sub>-CNT (3 mol%) nanocomposites show the highest photocatalytic activity.https://www.mdpi.com/2073-4344/10/6/632B-TiO<sub>2</sub>-CNT nanocompositesphotocatalysisUV and visible lightorganic pollutants |
| spellingShingle | Valmiki B. Koli Shyue-Chu Ke Ananta G. Dodamani Shamkumar P. Deshmukh Jung-Sik Kim Boron-Doped TiO<sub>2</sub>-CNT Nanocomposites with Improved Photocatalytic Efficiency toward Photodegradation of Toluene Gas and Photo-Inactivation of <i>Escherichia coli</i> Catalysts B-TiO<sub>2</sub>-CNT nanocomposites photocatalysis UV and visible light organic pollutants |
| title | Boron-Doped TiO<sub>2</sub>-CNT Nanocomposites with Improved Photocatalytic Efficiency toward Photodegradation of Toluene Gas and Photo-Inactivation of <i>Escherichia coli</i> |
| title_full | Boron-Doped TiO<sub>2</sub>-CNT Nanocomposites with Improved Photocatalytic Efficiency toward Photodegradation of Toluene Gas and Photo-Inactivation of <i>Escherichia coli</i> |
| title_fullStr | Boron-Doped TiO<sub>2</sub>-CNT Nanocomposites with Improved Photocatalytic Efficiency toward Photodegradation of Toluene Gas and Photo-Inactivation of <i>Escherichia coli</i> |
| title_full_unstemmed | Boron-Doped TiO<sub>2</sub>-CNT Nanocomposites with Improved Photocatalytic Efficiency toward Photodegradation of Toluene Gas and Photo-Inactivation of <i>Escherichia coli</i> |
| title_short | Boron-Doped TiO<sub>2</sub>-CNT Nanocomposites with Improved Photocatalytic Efficiency toward Photodegradation of Toluene Gas and Photo-Inactivation of <i>Escherichia coli</i> |
| title_sort | boron doped tio sub 2 sub cnt nanocomposites with improved photocatalytic efficiency toward photodegradation of toluene gas and photo inactivation of i escherichia coli i |
| topic | B-TiO<sub>2</sub>-CNT nanocomposites photocatalysis UV and visible light organic pollutants |
| url | https://www.mdpi.com/2073-4344/10/6/632 |
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