Enhanced UV-Visible Light Photocatalytic Activity by Constructing Appropriate Heterostructures between Mesopore TiO2 Nanospheres and Sn3O4 Nanoparticles

Enhanced UV-Visible Light Photocatalytic Activity by Constructing Appropriate Heterostructures between Mesopore TiO2 Nanospheres and Sn3O4 Nanoparticles

Novel TiO2/Sn3O4 heterostructure photocatalysts were ingeniously synthesized via a scalable two-step method. The impressive photocatalytic abilities of the TiO2/Sn3O4 sphere nanocomposites were validated by the degradation test of methyl orange and •OH trapping photoluminescence experiments under ul...

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Main Authors: Jianling Hu, Jianhai Tu, Xingyang Li, Ziya Wang, Yan Li, Quanshui Li, Fengping Wang
Format: Article
Language:English
Published: MDPI AG 2017-10-01
Series:Nanomaterials
Subjects:
photocatalyst
heterostructures
TiO2
Sn3O4
Online Access:https://www.mdpi.com/2079-4991/7/10/336
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spelling doaj-8d2a14cba12c437eb84b5fc53e1a45dc2020-11-24T22:08:53ZengMDPI AGNanomaterials2079-49912017-10-0171033610.3390/nano7100336nano7100336Enhanced UV-Visible Light Photocatalytic Activity by Constructing Appropriate Heterostructures between Mesopore TiO2 Nanospheres and Sn3O4 NanoparticlesJianling Hu0Jianhai Tu1Xingyang Li2Ziya Wang3Yan Li4Quanshui Li5Fengping Wang6Department of Physics, School of Mathematics and Physics, University of Science and Technology Beijing, Beijing 10083, ChinaDepartment of Physics, School of Mathematics and Physics, University of Science and Technology Beijing, Beijing 10083, ChinaDepartment of Physics, School of Mathematics and Physics, University of Science and Technology Beijing, Beijing 10083, ChinaDepartment of Physics, School of Mathematics and Physics, University of Science and Technology Beijing, Beijing 10083, ChinaDepartment of Physics, School of Mathematics and Physics, University of Science and Technology Beijing, Beijing 10083, ChinaDepartment of Physics, School of Mathematics and Physics, University of Science and Technology Beijing, Beijing 10083, ChinaDepartment of Physics, School of Mathematics and Physics, University of Science and Technology Beijing, Beijing 10083, ChinaNovel TiO2/Sn3O4 heterostructure photocatalysts were ingeniously synthesized via a scalable two-step method. The impressive photocatalytic abilities of the TiO2/Sn3O4 sphere nanocomposites were validated by the degradation test of methyl orange and •OH trapping photoluminescence experiments under ultraviolet (UV) and visible light irradiation, respectively. Especially under the visible light, the TiO2/Sn3O4 nanocomposites demonstrated a superb photocatalytic activity, with 81.2% of methyl orange (MO) decomposed at 30 min after irradiation, which greatly exceeded that of the P25 (13.4%), TiO2 (0.5%) and pure Sn3O4 (59.1%) nanostructures. This enhanced photocatalytic performance could be attributed to the mesopore induced by the monodispersed TiO2 cores that supply sufficient surface areas and accessibility to reactant molecules. This exquisite hetero-architecture facilitates extended UV-visible absorption and efficient photoexcited charge carrier separation.https://www.mdpi.com/2079-4991/7/10/336photocatalystheterostructuresTiO2Sn3O4
collection DOAJ
language English
format Article
sources DOAJ
author Jianling Hu
Jianhai Tu
Xingyang Li
Ziya Wang
Yan Li
Quanshui Li
Fengping Wang
spellingShingle Jianling Hu
Jianhai Tu
Xingyang Li
Ziya Wang
Yan Li
Quanshui Li
Fengping Wang
Enhanced UV-Visible Light Photocatalytic Activity by Constructing Appropriate Heterostructures between Mesopore TiO2 Nanospheres and Sn3O4 Nanoparticles
Nanomaterials
photocatalyst
heterostructures
TiO2
Sn3O4
author_facet Jianling Hu
Jianhai Tu
Xingyang Li
Ziya Wang
Yan Li
Quanshui Li
Fengping Wang
author_sort Jianling Hu
title Enhanced UV-Visible Light Photocatalytic Activity by Constructing Appropriate Heterostructures between Mesopore TiO2 Nanospheres and Sn3O4 Nanoparticles
title_short Enhanced UV-Visible Light Photocatalytic Activity by Constructing Appropriate Heterostructures between Mesopore TiO2 Nanospheres and Sn3O4 Nanoparticles
title_full Enhanced UV-Visible Light Photocatalytic Activity by Constructing Appropriate Heterostructures between Mesopore TiO2 Nanospheres and Sn3O4 Nanoparticles
title_fullStr Enhanced UV-Visible Light Photocatalytic Activity by Constructing Appropriate Heterostructures between Mesopore TiO2 Nanospheres and Sn3O4 Nanoparticles
title_full_unstemmed Enhanced UV-Visible Light Photocatalytic Activity by Constructing Appropriate Heterostructures between Mesopore TiO2 Nanospheres and Sn3O4 Nanoparticles
title_sort enhanced uv-visible light photocatalytic activity by constructing appropriate heterostructures between mesopore tio2 nanospheres and sn3o4 nanoparticles
publisher MDPI AG
series Nanomaterials
issn 2079-4991
publishDate 2017-10-01
description Novel TiO2/Sn3O4 heterostructure photocatalysts were ingeniously synthesized via a scalable two-step method. The impressive photocatalytic abilities of the TiO2/Sn3O4 sphere nanocomposites were validated by the degradation test of methyl orange and •OH trapping photoluminescence experiments under ultraviolet (UV) and visible light irradiation, respectively. Especially under the visible light, the TiO2/Sn3O4 nanocomposites demonstrated a superb photocatalytic activity, with 81.2% of methyl orange (MO) decomposed at 30 min after irradiation, which greatly exceeded that of the P25 (13.4%), TiO2 (0.5%) and pure Sn3O4 (59.1%) nanostructures. This enhanced photocatalytic performance could be attributed to the mesopore induced by the monodispersed TiO2 cores that supply sufficient surface areas and accessibility to reactant molecules. This exquisite hetero-architecture facilitates extended UV-visible absorption and efficient photoexcited charge carrier separation.
topic photocatalyst
heterostructures
TiO2
Sn3O4
url https://www.mdpi.com/2079-4991/7/10/336
work_keys_str_mv AT jianlinghu enhanceduvvisiblelightphotocatalyticactivitybyconstructingappropriateheterostructuresbetweenmesoporetio2nanospheresandsn3o4nanoparticles
AT jianhaitu enhanceduvvisiblelightphotocatalyticactivitybyconstructingappropriateheterostructuresbetweenmesoporetio2nanospheresandsn3o4nanoparticles
AT xingyangli enhanceduvvisiblelightphotocatalyticactivitybyconstructingappropriateheterostructuresbetweenmesoporetio2nanospheresandsn3o4nanoparticles
AT ziyawang enhanceduvvisiblelightphotocatalyticactivitybyconstructingappropriateheterostructuresbetweenmesoporetio2nanospheresandsn3o4nanoparticles
AT yanli enhanceduvvisiblelightphotocatalyticactivitybyconstructingappropriateheterostructuresbetweenmesoporetio2nanospheresandsn3o4nanoparticles
AT quanshuili enhanceduvvisiblelightphotocatalyticactivitybyconstructingappropriateheterostructuresbetweenmesoporetio2nanospheresandsn3o4nanoparticles
AT fengpingwang enhanceduvvisiblelightphotocatalyticactivitybyconstructingappropriateheterostructuresbetweenmesoporetio2nanospheresandsn3o4nanoparticles
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