Enhancement of TiO2 activity under visible light by N,S codoping for Pb(II) removal from water
This paper deals with a systematic study on the co-doping N,S on TiO2 photocatalyst to improve its activity under visible light on the removal of Pb(II) from the aqueous media. The co-doping TiO2 by N,S atoms was conducted in an autoclave by one-step hydrothermal of TiO2 mixed with nitric and sulfur...
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| Format: | Article |
| Language: | English |
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Springer Science and Business Media B.V.
2022
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| Online Access: | https://repository.ugm.ac.id/284337/1/Wahyuni_MIPA.pdf |
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| author | Wahyuni, Endang Tri Pratama, Nanda Alzeta Lestari, Novianti Dwi Suherman, Suherman |
| author_facet | Wahyuni, Endang Tri Pratama, Nanda Alzeta Lestari, Novianti Dwi Suherman, Suherman |
| author_sort | Wahyuni, Endang Tri |
| collection | UGM |
| description | This paper deals with a systematic study on the co-doping N,S on TiO2 photocatalyst to improve its activity under visible light on the removal of Pb(II) from the aqueous media. The co-doping TiO2 by N,S atoms was conducted in an autoclave by one-step hydrothermal of TiO2 mixed with nitric and sulfuric acids as the sources of N and S, respectively. The mole ratio of TiO2:nitric acid:sulfuric acid was varied as 1:1:0.5, 1:1:1, and 1:1:1.5 to find the best ratio toward the activity. The co-doped photocatalysts obtained were characterized by specular reflectance UV/Vis (SRUV), X-ray diffraction (XRD), and fourier transform infrared (FTIR) instruments. A batch experiment was carried out for oxidation of Pb(II), driven by a combination of visible light and TiO2-N,S photocatalyst. The research results attribute that co-doping N,S into TiO2 has remarkably narrowed the gap in the TiO2 structure, emerging in the visible region. It was also proven that the co-doped in TiO2 can considerably enhance its activity in the removal of Pb(II) under visible light, and the highest activity was owned by TiO2-N,S (1:1:1). Furthermore, the most effective removal of Pb(II) 10 mg/L (98%) could be reached by employing 500 mg L-1 of the TiO2-N,S (1:1:1) dose, 45 min of the time, and the solution pH at 7. The Pb(II) removed is due to the photo-oxidation induced by OH radicals to form the handleable PbO2. |
| first_indexed | 2024-03-14T00:10:04Z |
| format | Article |
| id | oai:generic.eprints.org:284337 |
| institution | Universiti Gadjah Mada |
| language | English |
| last_indexed | 2024-03-14T00:10:04Z |
| publishDate | 2022 |
| publisher | Springer Science and Business Media B.V. |
| record_format | dspace |
| spelling | oai:generic.eprints.org:2843372023-12-13T08:44:17Z https://repository.ugm.ac.id/284337/ Enhancement of TiO2 activity under visible light by N,S codoping for Pb(II) removal from water Wahyuni, Endang Tri Pratama, Nanda Alzeta Lestari, Novianti Dwi Suherman, Suherman Chemical Science Mathematics and Applied Sciences This paper deals with a systematic study on the co-doping N,S on TiO2 photocatalyst to improve its activity under visible light on the removal of Pb(II) from the aqueous media. The co-doping TiO2 by N,S atoms was conducted in an autoclave by one-step hydrothermal of TiO2 mixed with nitric and sulfuric acids as the sources of N and S, respectively. The mole ratio of TiO2:nitric acid:sulfuric acid was varied as 1:1:0.5, 1:1:1, and 1:1:1.5 to find the best ratio toward the activity. The co-doped photocatalysts obtained were characterized by specular reflectance UV/Vis (SRUV), X-ray diffraction (XRD), and fourier transform infrared (FTIR) instruments. A batch experiment was carried out for oxidation of Pb(II), driven by a combination of visible light and TiO2-N,S photocatalyst. The research results attribute that co-doping N,S into TiO2 has remarkably narrowed the gap in the TiO2 structure, emerging in the visible region. It was also proven that the co-doped in TiO2 can considerably enhance its activity in the removal of Pb(II) under visible light, and the highest activity was owned by TiO2-N,S (1:1:1). Furthermore, the most effective removal of Pb(II) 10 mg/L (98%) could be reached by employing 500 mg L-1 of the TiO2-N,S (1:1:1) dose, 45 min of the time, and the solution pH at 7. The Pb(II) removed is due to the photo-oxidation induced by OH radicals to form the handleable PbO2. Springer Science and Business Media B.V. 2022-01-24 Article PeerReviewed application/pdf en https://repository.ugm.ac.id/284337/1/Wahyuni_MIPA.pdf Wahyuni, Endang Tri and Pratama, Nanda Alzeta and Lestari, Novianti Dwi and Suherman, Suherman (2022) Enhancement of TiO2 activity under visible light by N,S codoping for Pb(II) removal from water. Journal of Engineering and Applied Science, 69 (11). pp. 1-12. ISSN 11101903 https://jeas.springeropen.com/articles/10.1186/s44147-022-00069-5 https://doi.org/10.1186/s44147-022-00069-5 |
| spellingShingle | Chemical Science Mathematics and Applied Sciences Wahyuni, Endang Tri Pratama, Nanda Alzeta Lestari, Novianti Dwi Suherman, Suherman Enhancement of TiO2 activity under visible light by N,S codoping for Pb(II) removal from water |
| title | Enhancement of TiO2 activity under visible light by N,S codoping for Pb(II) removal from water |
| title_full | Enhancement of TiO2 activity under visible light by N,S codoping for Pb(II) removal from water |
| title_fullStr | Enhancement of TiO2 activity under visible light by N,S codoping for Pb(II) removal from water |
| title_full_unstemmed | Enhancement of TiO2 activity under visible light by N,S codoping for Pb(II) removal from water |
| title_short | Enhancement of TiO2 activity under visible light by N,S codoping for Pb(II) removal from water |
| title_sort | enhancement of tio2 activity under visible light by n s codoping for pb ii removal from water |
| topic | Chemical Science Mathematics and Applied Sciences |
| url | https://repository.ugm.ac.id/284337/1/Wahyuni_MIPA.pdf |
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