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Characteristics of Doped TiO(2) Nanoparticle Photocatalysts Prepared by the Rotten Egg White

In this study, expired egg white was used as a template, and a sol–gel method was employed to prepare pure-phase TiO(2) nano-powder and mixed-phase powders doped with NaF and NaI. The influences of different calcination temperatures, doping elements, and doping amounts during the preparation process...

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Autores principales: Lu, Chung-Ming, Sharma, Raju Kumar, Lin, Pin-Yun, Huang, Yi-Hsun, Chen, Jung-Sheng, Lee, Wen-Chien, Chen, Chien-Yen
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9229685/
https://www.ncbi.nlm.nih.gov/pubmed/35744290
http://dx.doi.org/10.3390/ma15124231
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author Lu, Chung-Ming
Sharma, Raju Kumar
Lin, Pin-Yun
Huang, Yi-Hsun
Chen, Jung-Sheng
Lee, Wen-Chien
Chen, Chien-Yen
author_facet Lu, Chung-Ming
Sharma, Raju Kumar
Lin, Pin-Yun
Huang, Yi-Hsun
Chen, Jung-Sheng
Lee, Wen-Chien
Chen, Chien-Yen
author_sort Lu, Chung-Ming
collection PubMed
description In this study, expired egg white was used as a template, and a sol–gel method was employed to prepare pure-phase TiO(2) nano-powder and mixed-phase powders doped with NaF and NaI. The influences of different calcination temperatures, doping elements, and doping amounts during the preparation process on the photocatalytic performance and activity of the prepared TiO(2) powders were studied. The results of the experiments showed that the F-doped TiO(2) had the highest photocatalytic activity when the doping amount was 1.2%, as examined by EDS, where the sintering temperature was 500 °C. F-doped TiO(2) nanoparticles were also synthesized by the sol–gel method using tetrabutyl titanate and NaF mixed with expired egg white protein as the precursor. The F-TiO(2) photocatalyst was characterized using FE-SEM, HR-TEM, EDS, XPS, and UV-Vis, and the photocatalytic activity was evaluated by photodegradation of methylene blue under visible light. The results showed that doping with F reduced the energy band gap (3.04 eV) of TiO(2), thereby increasing the photocatalytic activity in the visible-light region. The visible-light wavelength range and photocatalytic activity of the catalyst were also affected by the doping amount.
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spelling pubmed-92296852022-06-25 Characteristics of Doped TiO(2) Nanoparticle Photocatalysts Prepared by the Rotten Egg White Lu, Chung-Ming Sharma, Raju Kumar Lin, Pin-Yun Huang, Yi-Hsun Chen, Jung-Sheng Lee, Wen-Chien Chen, Chien-Yen Materials (Basel) Article In this study, expired egg white was used as a template, and a sol–gel method was employed to prepare pure-phase TiO(2) nano-powder and mixed-phase powders doped with NaF and NaI. The influences of different calcination temperatures, doping elements, and doping amounts during the preparation process on the photocatalytic performance and activity of the prepared TiO(2) powders were studied. The results of the experiments showed that the F-doped TiO(2) had the highest photocatalytic activity when the doping amount was 1.2%, as examined by EDS, where the sintering temperature was 500 °C. F-doped TiO(2) nanoparticles were also synthesized by the sol–gel method using tetrabutyl titanate and NaF mixed with expired egg white protein as the precursor. The F-TiO(2) photocatalyst was characterized using FE-SEM, HR-TEM, EDS, XPS, and UV-Vis, and the photocatalytic activity was evaluated by photodegradation of methylene blue under visible light. The results showed that doping with F reduced the energy band gap (3.04 eV) of TiO(2), thereby increasing the photocatalytic activity in the visible-light region. The visible-light wavelength range and photocatalytic activity of the catalyst were also affected by the doping amount. MDPI 2022-06-15 /pmc/articles/PMC9229685/ /pubmed/35744290 http://dx.doi.org/10.3390/ma15124231 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Lu, Chung-Ming
Sharma, Raju Kumar
Lin, Pin-Yun
Huang, Yi-Hsun
Chen, Jung-Sheng
Lee, Wen-Chien
Chen, Chien-Yen
Characteristics of Doped TiO(2) Nanoparticle Photocatalysts Prepared by the Rotten Egg White
title Characteristics of Doped TiO(2) Nanoparticle Photocatalysts Prepared by the Rotten Egg White
title_full Characteristics of Doped TiO(2) Nanoparticle Photocatalysts Prepared by the Rotten Egg White
title_fullStr Characteristics of Doped TiO(2) Nanoparticle Photocatalysts Prepared by the Rotten Egg White
title_full_unstemmed Characteristics of Doped TiO(2) Nanoparticle Photocatalysts Prepared by the Rotten Egg White
title_short Characteristics of Doped TiO(2) Nanoparticle Photocatalysts Prepared by the Rotten Egg White
title_sort characteristics of doped tio(2) nanoparticle photocatalysts prepared by the rotten egg white
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9229685/
https://www.ncbi.nlm.nih.gov/pubmed/35744290
http://dx.doi.org/10.3390/ma15124231
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