Rice Crust-Like ZnO/Ti3C2Tx MXene Hybrid Structures for Improved Photocatalytic Activity

Novel two-dimensional ZnO/Ti3C2Tx hybrid photocatalysts with modified surface areas were prepared using a simple calcination technique. The microstructures, crystalline features, and bonding states of the ZnO structure-covered Ti&l...

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Main Authors:	Qui Thanh Hoai Ta, Nghe My Tran, Jin-Seo Noh
Format:	Article
Language:	English
Published:	MDPI AG 2020-10-01
Series:	Catalysts
Subjects:	Ti<sub>3</sub>C<sub>2</sub>T<sub>x</sub> MXene hybrid structures ZnO organic pollutants photocatalysts
Online Access:	https://www.mdpi.com/2073-4344/10/10/1140

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spelling	doaj-6ba046cfab9841639c614e676e399d532020-11-25T03:37:06ZengMDPI AGCatalysts2073-43442020-10-01101140114010.3390/catal10101140Rice Crust-Like ZnO/Ti<sub>3</sub>C<sub>2</sub>T<sub>x</sub> MXene Hybrid Structures for Improved Photocatalytic ActivityQui Thanh Hoai Ta0Nghe My Tran1Jin-Seo Noh2Department of Physics, Gachon University, 1342 Seongnamdaero, Sujeong-gu, Seongnam-si, Gyeonggi-do 13120, KoreaDepartment of Physics, Gachon University, 1342 Seongnamdaero, Sujeong-gu, Seongnam-si, Gyeonggi-do 13120, KoreaDepartment of Physics, Gachon University, 1342 Seongnamdaero, Sujeong-gu, Seongnam-si, Gyeonggi-do 13120, KoreaNovel two-dimensional ZnO/Ti<sub>3</sub>C<sub>2</sub>T<sub>x</sub> hybrid photocatalysts with modified surface areas were prepared using a simple calcination technique. The microstructures, crystalline features, and bonding states of the ZnO structure-covered Ti<sub>3</sub>C<sub>2</sub>T<sub>x</sub> MXenes were closely characterized using various tools. The photoluminescence intensity of the hybrid photocatalyst was greatly reduced compared to the pristine ZnO, while its Brunauer-Emmett-Teller (BET) surface area increased by more than 100 times. Under solar light illumination, the photocatalytic degradation efficiency of the hybrid photocatalyst for organic pollutants (MO, RhB) appeared to be three-fold larger as compared to pristine ZnO. The superb photocatalytic performance of the photocatalyst was attributed to several factors, such as ideal band alignment, Schottky barrier formation, and large surface area. Moreover, the ZnO/Ti<sub>3</sub>C<sub>2</sub>T<sub>x</sub> hybrid photocatalyst showed excellent cycling stability. These results suggest that the novel hybrid structure may be a potential candidate for removing organic pollutants in wastewater.https://www.mdpi.com/2073-4344/10/10/1140Ti<sub>3</sub>C<sub>2</sub>T<sub>x</sub> MXenehybrid structuresZnOorganic pollutantsphotocatalysts
collection	DOAJ
language	English
format	Article
sources	DOAJ
author	Qui Thanh Hoai Ta Nghe My Tran Jin-Seo Noh
spellingShingle	Qui Thanh Hoai Ta Nghe My Tran Jin-Seo Noh Rice Crust-Like ZnO/Ti<sub>3</sub>C<sub>2</sub>T<sub>x</sub> MXene Hybrid Structures for Improved Photocatalytic Activity Catalysts Ti<sub>3</sub>C<sub>2</sub>T<sub>x</sub> MXene hybrid structures ZnO organic pollutants photocatalysts
author_facet	Qui Thanh Hoai Ta Nghe My Tran Jin-Seo Noh
author_sort	Qui Thanh Hoai Ta
title	Rice Crust-Like ZnO/Ti<sub>3</sub>C<sub>2</sub>T<sub>x</sub> MXene Hybrid Structures for Improved Photocatalytic Activity
title_short	Rice Crust-Like ZnO/Ti<sub>3</sub>C<sub>2</sub>T<sub>x</sub> MXene Hybrid Structures for Improved Photocatalytic Activity
title_full	Rice Crust-Like ZnO/Ti<sub>3</sub>C<sub>2</sub>T<sub>x</sub> MXene Hybrid Structures for Improved Photocatalytic Activity
title_fullStr	Rice Crust-Like ZnO/Ti<sub>3</sub>C<sub>2</sub>T<sub>x</sub> MXene Hybrid Structures for Improved Photocatalytic Activity
title_full_unstemmed	Rice Crust-Like ZnO/Ti<sub>3</sub>C<sub>2</sub>T<sub>x</sub> MXene Hybrid Structures for Improved Photocatalytic Activity
title_sort	rice crust-like zno/ti<sub>3</sub>c<sub>2</sub>t<sub>x</sub> mxene hybrid structures for improved photocatalytic activity
publisher	MDPI AG
series	Catalysts
issn	2073-4344
publishDate	2020-10-01
description	Novel two-dimensional ZnO/Ti<sub>3</sub>C<sub>2</sub>T<sub>x</sub> hybrid photocatalysts with modified surface areas were prepared using a simple calcination technique. The microstructures, crystalline features, and bonding states of the ZnO structure-covered Ti<sub>3</sub>C<sub>2</sub>T<sub>x</sub> MXenes were closely characterized using various tools. The photoluminescence intensity of the hybrid photocatalyst was greatly reduced compared to the pristine ZnO, while its Brunauer-Emmett-Teller (BET) surface area increased by more than 100 times. Under solar light illumination, the photocatalytic degradation efficiency of the hybrid photocatalyst for organic pollutants (MO, RhB) appeared to be three-fold larger as compared to pristine ZnO. The superb photocatalytic performance of the photocatalyst was attributed to several factors, such as ideal band alignment, Schottky barrier formation, and large surface area. Moreover, the ZnO/Ti<sub>3</sub>C<sub>2</sub>T<sub>x</sub> hybrid photocatalyst showed excellent cycling stability. These results suggest that the novel hybrid structure may be a potential candidate for removing organic pollutants in wastewater.
topic	Ti<sub>3</sub>C<sub>2</sub>T<sub>x</sub> MXene hybrid structures ZnO organic pollutants photocatalysts
url	https://www.mdpi.com/2073-4344/10/10/1140
work_keys_str_mv	AT quithanhhoaita ricecrustlikeznotisub3subcsub2subtsubxsubmxenehybridstructuresforimprovedphotocatalyticactivity AT nghemytran ricecrustlikeznotisub3subcsub2subtsubxsubmxenehybridstructuresforimprovedphotocatalyticactivity AT jinseonoh ricecrustlikeznotisub3subcsub2subtsubxsubmxenehybridstructuresforimprovedphotocatalyticactivity
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Rice Crust-Like ZnO/Ti<sub>3</sub>C<sub>2</sub>T<sub>x</sub> MXene Hybrid Structures for Improved Photocatalytic Activity

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