Preparation and Application of Nb<sub>2</sub>O<sub>5</sub> Nanofibers in CO<sub>2</sub> Photoconversion
Increasing global warming due to NO<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msub><mrow></mrow><mi>x</mi></msub></semantics></math></inline-formula>, CO<...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-12-01
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| Series: | Nanomaterials |
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| Online Access: | https://www.mdpi.com/2079-4991/11/12/3268 |
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| author | A. C. F. Prado J. O. D. Malafatti J. A. Oliveira C. Ribeiro M. R. Joya A. P. Luz E. C. Paris |
| author_facet | A. C. F. Prado J. O. D. Malafatti J. A. Oliveira C. Ribeiro M. R. Joya A. P. Luz E. C. Paris |
| author_sort | A. C. F. Prado |
| collection | DOAJ |
| description | Increasing global warming due to NO<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msub><mrow></mrow><mi>x</mi></msub></semantics></math></inline-formula>, CO<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msub><mrow></mrow><mn>2</mn></msub></semantics></math></inline-formula>, and CH<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msub><mrow></mrow><mn>4</mn></msub></semantics></math></inline-formula>, is significantly harming ecosystems and life worldwide. One promising methodology is converting pollutants into valuable chemicals via photocatalytic processes (by reusable photocatalysts). In this context, the present work aimed to produce a Nb<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msub><mrow></mrow><mn>2</mn></msub></semantics></math></inline-formula>O<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msub><mrow></mrow><mn>5</mn></msub></semantics></math></inline-formula> photocatalyst nanofiber system by electrospinning to convert CO<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msub><mrow></mrow><mn>2</mn></msub></semantics></math></inline-formula>. Based on the collected data, the calcination at 600 <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msup><mrow></mrow><mo>∘</mo></msup></semantics></math></inline-formula>C for 2 h resulted in the best condition to obtain nanofibers with homogeneous surfaces and an average diameter of 84 nm. As a result, the Nb<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msub><mrow></mrow><mn>2</mn></msub></semantics></math></inline-formula>O<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msub><mrow></mrow><mn>5</mn></msub></semantics></math></inline-formula> nanofibers converted CO<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msub><mrow></mrow><mn>2</mn></msub></semantics></math></inline-formula> mostly into CO and CH<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msub><mrow></mrow><mn>4</mn></msub></semantics></math></inline-formula>, reaching values around 8.5 <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mi mathvariant="sans-serif">μ</mi></semantics></math></inline-formula>mol g<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msup><mrow></mrow><mrow><mo>−</mo><mn>1</mn></mrow></msup></semantics></math></inline-formula> and 0.55 <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mi mathvariant="sans-serif">μ</mi></semantics></math></inline-formula>mol g<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msup><mrow></mrow><mrow><mo>−</mo><mn>1</mn></mrow></msup></semantics></math></inline-formula>, respectively. |
| first_indexed | 2024-03-10T03:27:11Z |
| format | Article |
| id | doaj.art-47c0b4592bab4365ae5a8ef4e5f8d78d |
| institution | Directory Open Access Journal |
| issn | 2079-4991 |
| language | English |
| last_indexed | 2024-03-10T03:27:11Z |
| publishDate | 2021-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Nanomaterials |
| spelling | doaj.art-47c0b4592bab4365ae5a8ef4e5f8d78d2023-11-23T09:50:15ZengMDPI AGNanomaterials2079-49912021-12-011112326810.3390/nano11123268Preparation and Application of Nb<sub>2</sub>O<sub>5</sub> Nanofibers in CO<sub>2</sub> PhotoconversionA. C. F. Prado0J. O. D. Malafatti1J. A. Oliveira2C. Ribeiro3M. R. Joya4A. P. Luz5E. C. Paris6Nanotechnology National Laboratory for Agriculture (LNNA), Embrapa Instrumentação, XV de Novembro st., 1452, São Carlos 13560-970, SP, BrazilNanotechnology National Laboratory for Agriculture (LNNA), Embrapa Instrumentação, XV de Novembro st., 1452, São Carlos 13560-970, SP, BrazilNanotechnology National Laboratory for Agriculture (LNNA), Embrapa Instrumentação, XV de Novembro st., 1452, São Carlos 13560-970, SP, BrazilNanotechnology National Laboratory for Agriculture (LNNA), Embrapa Instrumentação, XV de Novembro st., 1452, São Carlos 13560-970, SP, BrazilDepartamento de Física, Facultad de Ciencias, Universidad Nacional de Colombia-Bogotá, Carrera 30 Calle 45-03, Bogotá 111321, ColombiaGraduate Program in Materials Science and Engineering (PPGCEM), Department Materials Engineering, Federal University of São Carlos, Rodovia Washington Luiz, Km 235 SP-310, São Carlos 13565-905, SP, BrazilNanotechnology National Laboratory for Agriculture (LNNA), Embrapa Instrumentação, XV de Novembro st., 1452, São Carlos 13560-970, SP, BrazilIncreasing global warming due to NO<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msub><mrow></mrow><mi>x</mi></msub></semantics></math></inline-formula>, CO<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msub><mrow></mrow><mn>2</mn></msub></semantics></math></inline-formula>, and CH<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msub><mrow></mrow><mn>4</mn></msub></semantics></math></inline-formula>, is significantly harming ecosystems and life worldwide. One promising methodology is converting pollutants into valuable chemicals via photocatalytic processes (by reusable photocatalysts). In this context, the present work aimed to produce a Nb<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msub><mrow></mrow><mn>2</mn></msub></semantics></math></inline-formula>O<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msub><mrow></mrow><mn>5</mn></msub></semantics></math></inline-formula> photocatalyst nanofiber system by electrospinning to convert CO<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msub><mrow></mrow><mn>2</mn></msub></semantics></math></inline-formula>. Based on the collected data, the calcination at 600 <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msup><mrow></mrow><mo>∘</mo></msup></semantics></math></inline-formula>C for 2 h resulted in the best condition to obtain nanofibers with homogeneous surfaces and an average diameter of 84 nm. As a result, the Nb<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msub><mrow></mrow><mn>2</mn></msub></semantics></math></inline-formula>O<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msub><mrow></mrow><mn>5</mn></msub></semantics></math></inline-formula> nanofibers converted CO<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msub><mrow></mrow><mn>2</mn></msub></semantics></math></inline-formula> mostly into CO and CH<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msub><mrow></mrow><mn>4</mn></msub></semantics></math></inline-formula>, reaching values around 8.5 <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mi mathvariant="sans-serif">μ</mi></semantics></math></inline-formula>mol g<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msup><mrow></mrow><mrow><mo>−</mo><mn>1</mn></mrow></msup></semantics></math></inline-formula> and 0.55 <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mi mathvariant="sans-serif">μ</mi></semantics></math></inline-formula>mol g<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msup><mrow></mrow><mrow><mo>−</mo><mn>1</mn></mrow></msup></semantics></math></inline-formula>, respectively.https://www.mdpi.com/2079-4991/11/12/3268Nb<sub>2</sub>O<sub>5</sub>CO<sub>2</sub> conversionphotocatalysiselectrospinningnanofibers |
| spellingShingle | A. C. F. Prado J. O. D. Malafatti J. A. Oliveira C. Ribeiro M. R. Joya A. P. Luz E. C. Paris Preparation and Application of Nb<sub>2</sub>O<sub>5</sub> Nanofibers in CO<sub>2</sub> Photoconversion Nanomaterials Nb<sub>2</sub>O<sub>5</sub> CO<sub>2</sub> conversion photocatalysis electrospinning nanofibers |
| title | Preparation and Application of Nb<sub>2</sub>O<sub>5</sub> Nanofibers in CO<sub>2</sub> Photoconversion |
| title_full | Preparation and Application of Nb<sub>2</sub>O<sub>5</sub> Nanofibers in CO<sub>2</sub> Photoconversion |
| title_fullStr | Preparation and Application of Nb<sub>2</sub>O<sub>5</sub> Nanofibers in CO<sub>2</sub> Photoconversion |
| title_full_unstemmed | Preparation and Application of Nb<sub>2</sub>O<sub>5</sub> Nanofibers in CO<sub>2</sub> Photoconversion |
| title_short | Preparation and Application of Nb<sub>2</sub>O<sub>5</sub> Nanofibers in CO<sub>2</sub> Photoconversion |
| title_sort | preparation and application of nb sub 2 sub o sub 5 sub nanofibers in co sub 2 sub photoconversion |
| topic | Nb<sub>2</sub>O<sub>5</sub> CO<sub>2</sub> conversion photocatalysis electrospinning nanofibers |
| url | https://www.mdpi.com/2079-4991/11/12/3268 |
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