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Mg(2)TiO(4) spinel modified by nitrogen doping as a Visible-Light-Active photocatalyst for antibacterial activity

Nitrogen doped Mg(2)TiO(4) spinel, i.e. Mg(2)TiO(4−x)N(y), has been synthesized and investigated as a photocatalyst for antibacterial activity. Mg(2)TiO(4−x)N(y) demonstrates superior photocatalytic activity for E. coli disinfection under visible light illumination (λ ≥ 400 nm). Complete disinfectio...

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Detalles Bibliográficos
Autores principales: Chang, Shufang, Hu, Yiwen, Qian, Jun, Shao, Yinlin, Ni, Shuang, Kong, Lulu, Dan, Wenyan, Luo, Chun, Jin, Shu, Xu, Xiaoxiang
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Elsevier B.V. 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7833804/
https://www.ncbi.nlm.nih.gov/pubmed/33519294
http://dx.doi.org/10.1016/j.cej.2021.128410
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author Chang, Shufang
Hu, Yiwen
Qian, Jun
Shao, Yinlin
Ni, Shuang
Kong, Lulu
Dan, Wenyan
Luo, Chun
Jin, Shu
Xu, Xiaoxiang
author_facet Chang, Shufang
Hu, Yiwen
Qian, Jun
Shao, Yinlin
Ni, Shuang
Kong, Lulu
Dan, Wenyan
Luo, Chun
Jin, Shu
Xu, Xiaoxiang
author_sort Chang, Shufang
collection PubMed
description Nitrogen doped Mg(2)TiO(4) spinel, i.e. Mg(2)TiO(4−x)N(y), has been synthesized and investigated as a photocatalyst for antibacterial activity. Mg(2)TiO(4−x)N(y) demonstrates superior photocatalytic activity for E. coli disinfection under visible light illumination (λ ≥ 400 nm). Complete disinfection of E. coli at a bacterial cell density of 1.0 × 10(7) CFU mL(−1) can be achieved within merely 60 min. Mg(2)TiO(4−x)N(y) is capable of generating superoxide radicals ((•)O(2)(−)) under visible light illumination which are the reactive oxygen species (ROSs) for bacteria disinfection. DFT calculations have verified the importance of nitrogen dopants in improving the visible light sensitivity of Mg(2)TiO(4−x)N(y). The facile synthesis, low cost, good biocompatibility and high disinfection activity of Mg(2)TiO(4−x)N(y) warrant promising applications in the field of water purification and antibacterial products.
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spelling pubmed-78338042021-01-26 Mg(2)TiO(4) spinel modified by nitrogen doping as a Visible-Light-Active photocatalyst for antibacterial activity Chang, Shufang Hu, Yiwen Qian, Jun Shao, Yinlin Ni, Shuang Kong, Lulu Dan, Wenyan Luo, Chun Jin, Shu Xu, Xiaoxiang Chem Eng J Article Nitrogen doped Mg(2)TiO(4) spinel, i.e. Mg(2)TiO(4−x)N(y), has been synthesized and investigated as a photocatalyst for antibacterial activity. Mg(2)TiO(4−x)N(y) demonstrates superior photocatalytic activity for E. coli disinfection under visible light illumination (λ ≥ 400 nm). Complete disinfection of E. coli at a bacterial cell density of 1.0 × 10(7) CFU mL(−1) can be achieved within merely 60 min. Mg(2)TiO(4−x)N(y) is capable of generating superoxide radicals ((•)O(2)(−)) under visible light illumination which are the reactive oxygen species (ROSs) for bacteria disinfection. DFT calculations have verified the importance of nitrogen dopants in improving the visible light sensitivity of Mg(2)TiO(4−x)N(y). The facile synthesis, low cost, good biocompatibility and high disinfection activity of Mg(2)TiO(4−x)N(y) warrant promising applications in the field of water purification and antibacterial products. Elsevier B.V. 2021-04-15 2021-01-06 /pmc/articles/PMC7833804/ /pubmed/33519294 http://dx.doi.org/10.1016/j.cej.2021.128410 Text en © 2021 Elsevier B.V. All rights reserved. Since January 2020 Elsevier has created a COVID-19 resource centre with free information in English and Mandarin on the novel coronavirus COVID-19. The COVID-19 resource centre is hosted on Elsevier Connect, the company's public news and information website. Elsevier hereby grants permission to make all its COVID-19-related research that is available on the COVID-19 resource centre - including this research content - immediately available in PubMed Central and other publicly funded repositories, such as the WHO COVID database with rights for unrestricted research re-use and analyses in any form or by any means with acknowledgement of the original source. These permissions are granted for free by Elsevier for as long as the COVID-19 resource centre remains active.
spellingShingle Article
Chang, Shufang
Hu, Yiwen
Qian, Jun
Shao, Yinlin
Ni, Shuang
Kong, Lulu
Dan, Wenyan
Luo, Chun
Jin, Shu
Xu, Xiaoxiang
Mg(2)TiO(4) spinel modified by nitrogen doping as a Visible-Light-Active photocatalyst for antibacterial activity
title Mg(2)TiO(4) spinel modified by nitrogen doping as a Visible-Light-Active photocatalyst for antibacterial activity
title_full Mg(2)TiO(4) spinel modified by nitrogen doping as a Visible-Light-Active photocatalyst for antibacterial activity
title_fullStr Mg(2)TiO(4) spinel modified by nitrogen doping as a Visible-Light-Active photocatalyst for antibacterial activity
title_full_unstemmed Mg(2)TiO(4) spinel modified by nitrogen doping as a Visible-Light-Active photocatalyst for antibacterial activity
title_short Mg(2)TiO(4) spinel modified by nitrogen doping as a Visible-Light-Active photocatalyst for antibacterial activity
title_sort mg(2)tio(4) spinel modified by nitrogen doping as a visible-light-active photocatalyst for antibacterial activity
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7833804/
https://www.ncbi.nlm.nih.gov/pubmed/33519294
http://dx.doi.org/10.1016/j.cej.2021.128410
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