Enhanced Photocatalytic Fuel Denitrification over TiO2/α-Fe2O3 Nanocomposites under Visible Light Irradiation

Abstract With increasingly stringent environmental regulations, the removal of nitrogen-containing compounds (NCCs) from gasoline fuel has become a more and more important research subject. In this work, we have successfully synthesized TiO2/α-Fe2O3 heterogeneous photocatalysts with different mass r...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Renkun Huang, Ruowen Liang, Haimei Fan, Shaoming Ying, Ling Wu, Xuxu Wang, Guiyang Yan
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/4e9d248e920e4e53955b3477812355cb
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:4e9d248e920e4e53955b3477812355cb
record_format	dspace
spelling	oai:doaj.org-article:4e9d248e920e4e53955b3477812355cb2021-12-02T11:40:58ZEnhanced Photocatalytic Fuel Denitrification over TiO2/α-Fe2O3 Nanocomposites under Visible Light Irradiation10.1038/s41598-017-08439-32045-2322https://doaj.org/article/4e9d248e920e4e53955b3477812355cb2017-08-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-08439-3https://doaj.org/toc/2045-2322Abstract With increasingly stringent environmental regulations, the removal of nitrogen-containing compounds (NCCs) from gasoline fuel has become a more and more important research subject. In this work, we have successfully synthesized TiO2/α-Fe2O3 heterogeneous photocatalysts with different mass ratios of TiO2 vs. α-Fe2O3. Taking photocatalytic denitrification of typical alkali NCCs, pyridine, in gasoline fuel under visible light irradiation (λ ≥ 420 nm) as the model reaction, the TiO2/α-Fe2O3 hybrids have exhibited enhanced photocatalytic activity compared with pure TiO2 and α-Fe2O3, giving a pyridine removal ratio of ∼100% after irradiation for 240 min. The improved photocatalytic performance can be attributed to the integrative effect of the enhanced light absorption intensity and more efficient separation of photogenerated electron-hole pairs. Importantly, this type of heterogeneous photocatalysts can be easily separate in the reaction medium by an external magnetic field that is very important for industrial purpose. In addition, major reaction intermediates have been identified by the liquid chromatograph-mass spectrometer (HPLC-MS) and a tentative photocatalytic denitrification mechanism has been proposed.Renkun HuangRuowen LiangHaimei FanShaoming YingLing WuXuxu WangGuiyang YanNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-10 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Renkun Huang Ruowen Liang Haimei Fan Shaoming Ying Ling Wu Xuxu Wang Guiyang Yan Enhanced Photocatalytic Fuel Denitrification over TiO2/α-Fe2O3 Nanocomposites under Visible Light Irradiation
description	Abstract With increasingly stringent environmental regulations, the removal of nitrogen-containing compounds (NCCs) from gasoline fuel has become a more and more important research subject. In this work, we have successfully synthesized TiO2/α-Fe2O3 heterogeneous photocatalysts with different mass ratios of TiO2 vs. α-Fe2O3. Taking photocatalytic denitrification of typical alkali NCCs, pyridine, in gasoline fuel under visible light irradiation (λ ≥ 420 nm) as the model reaction, the TiO2/α-Fe2O3 hybrids have exhibited enhanced photocatalytic activity compared with pure TiO2 and α-Fe2O3, giving a pyridine removal ratio of ∼100% after irradiation for 240 min. The improved photocatalytic performance can be attributed to the integrative effect of the enhanced light absorption intensity and more efficient separation of photogenerated electron-hole pairs. Importantly, this type of heterogeneous photocatalysts can be easily separate in the reaction medium by an external magnetic field that is very important for industrial purpose. In addition, major reaction intermediates have been identified by the liquid chromatograph-mass spectrometer (HPLC-MS) and a tentative photocatalytic denitrification mechanism has been proposed.
format	article
author	Renkun Huang Ruowen Liang Haimei Fan Shaoming Ying Ling Wu Xuxu Wang Guiyang Yan
author_facet	Renkun Huang Ruowen Liang Haimei Fan Shaoming Ying Ling Wu Xuxu Wang Guiyang Yan
author_sort	Renkun Huang
title	Enhanced Photocatalytic Fuel Denitrification over TiO2/α-Fe2O3 Nanocomposites under Visible Light Irradiation
title_short	Enhanced Photocatalytic Fuel Denitrification over TiO2/α-Fe2O3 Nanocomposites under Visible Light Irradiation
title_full	Enhanced Photocatalytic Fuel Denitrification over TiO2/α-Fe2O3 Nanocomposites under Visible Light Irradiation
title_fullStr	Enhanced Photocatalytic Fuel Denitrification over TiO2/α-Fe2O3 Nanocomposites under Visible Light Irradiation
title_full_unstemmed	Enhanced Photocatalytic Fuel Denitrification over TiO2/α-Fe2O3 Nanocomposites under Visible Light Irradiation
title_sort	enhanced photocatalytic fuel denitrification over tio2/α-fe2o3 nanocomposites under visible light irradiation
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/4e9d248e920e4e53955b3477812355cb
work_keys_str_mv	AT renkunhuang enhancedphotocatalyticfueldenitrificationovertio2afe2o3nanocompositesundervisiblelightirradiation AT ruowenliang enhancedphotocatalyticfueldenitrificationovertio2afe2o3nanocompositesundervisiblelightirradiation AT haimeifan enhancedphotocatalyticfueldenitrificationovertio2afe2o3nanocompositesundervisiblelightirradiation AT shaomingying enhancedphotocatalyticfueldenitrificationovertio2afe2o3nanocompositesundervisiblelightirradiation AT lingwu enhancedphotocatalyticfueldenitrificationovertio2afe2o3nanocompositesundervisiblelightirradiation AT xuxuwang enhancedphotocatalyticfueldenitrificationovertio2afe2o3nanocompositesundervisiblelightirradiation AT guiyangyan enhancedphotocatalyticfueldenitrificationovertio2afe2o3nanocompositesundervisiblelightirradiation
_version_	1718395515078443008

Enhanced Photocatalytic Fuel Denitrification over TiO2/α-Fe2O3 Nanocomposites under Visible Light Irradiation

Ejemplares similares