Impact of Zr-Doped TiO2 Photocatalyst on Formaldehyde Degradation by Na Addition

Baoqing Duan; Yukang Zhou; Chao Huang; Qiong Huang; Yingwen Chen; Haitao Xu; Shubao Shen

doi:10.1021/acs.iecr.8b03016

Impact of Zr-Doped TiO₂ Photocatalyst on Formaldehyde Degradation by Na Addition

Baoqing Duan, Yukang Zhou, Chao Huang, Qiong Huang, Yingwen Chen, Haitao Xu, Shubao Shen

COLLEGE OF BIOTECHNOLOGY AND PHARMACEUTICAL ENGINEERING

Research output: Contribution to journal › Article › peer-review

31 Scopus citations

Abstract

In this study, a series of Na-Zr/TiO₂ photocatalysts with different Na contents were synthesized via the sol-gel process. The characterization of the materials showed that Na addition facilitates the maintenance of anatase and excess Na led to particle size increases because of the formation of Na₂Ti₃O₇. The XPS results suggested that Na loading can increase the number of oxygen vacancies, leading to more abundant surface hydroxyl groups. The enhanced photocatalytic activities under visible light irradiation can be attributed to a decreasing band gap and increasing oxygen vacancies. The efficiency of the Na-Zr/TiO₂ samples was investigated by the degradation of formaldehyde under visible light. A high degradation rate of formaldehyde of approximately 96.6% was obtained with 2.5 mol % Na added to the Zr/TiO₂ samples.

Original language	English
Pages (from-to)	14044-14051
Number of pages	8
Journal	Industrial and Engineering Chemistry Research
Volume	57
Issue number	42
DOIs	https://doi.org/10.1021/acs.iecr.8b03016
State	Published - 24 Oct 2018

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title = "Impact of Zr-Doped TiO2 Photocatalyst on Formaldehyde Degradation by Na Addition",

abstract = "In this study, a series of Na-Zr/TiO2 photocatalysts with different Na contents were synthesized via the sol-gel process. The characterization of the materials showed that Na addition facilitates the maintenance of anatase and excess Na led to particle size increases because of the formation of Na2Ti3O7. The XPS results suggested that Na loading can increase the number of oxygen vacancies, leading to more abundant surface hydroxyl groups. The enhanced photocatalytic activities under visible light irradiation can be attributed to a decreasing band gap and increasing oxygen vacancies. The efficiency of the Na-Zr/TiO2 samples was investigated by the degradation of formaldehyde under visible light. A high degradation rate of formaldehyde of approximately 96.6% was obtained with 2.5 mol % Na added to the Zr/TiO2 samples.",

author = "Baoqing Duan and Yukang Zhou and Chao Huang and Qiong Huang and Yingwen Chen and Haitao Xu and Shubao Shen",

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TY - JOUR

T1 - Impact of Zr-Doped TiO2 Photocatalyst on Formaldehyde Degradation by Na Addition

AU - Duan, Baoqing

AU - Zhou, Yukang

AU - Huang, Chao

AU - Huang, Qiong

AU - Chen, Yingwen

AU - Xu, Haitao

AU - Shen, Shubao

PY - 2018/10/24

Y1 - 2018/10/24

N2 - In this study, a series of Na-Zr/TiO2 photocatalysts with different Na contents were synthesized via the sol-gel process. The characterization of the materials showed that Na addition facilitates the maintenance of anatase and excess Na led to particle size increases because of the formation of Na2Ti3O7. The XPS results suggested that Na loading can increase the number of oxygen vacancies, leading to more abundant surface hydroxyl groups. The enhanced photocatalytic activities under visible light irradiation can be attributed to a decreasing band gap and increasing oxygen vacancies. The efficiency of the Na-Zr/TiO2 samples was investigated by the degradation of formaldehyde under visible light. A high degradation rate of formaldehyde of approximately 96.6% was obtained with 2.5 mol % Na added to the Zr/TiO2 samples.

AB - In this study, a series of Na-Zr/TiO2 photocatalysts with different Na contents were synthesized via the sol-gel process. The characterization of the materials showed that Na addition facilitates the maintenance of anatase and excess Na led to particle size increases because of the formation of Na2Ti3O7. The XPS results suggested that Na loading can increase the number of oxygen vacancies, leading to more abundant surface hydroxyl groups. The enhanced photocatalytic activities under visible light irradiation can be attributed to a decreasing band gap and increasing oxygen vacancies. The efficiency of the Na-Zr/TiO2 samples was investigated by the degradation of formaldehyde under visible light. A high degradation rate of formaldehyde of approximately 96.6% was obtained with 2.5 mol % Na added to the Zr/TiO2 samples.

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JO - Industrial and Engineering Chemistry Research

JF - Industrial and Engineering Chemistry Research

IS - 42

ER -

Impact of Zr-Doped TiO₂ Photocatalyst on Formaldehyde Degradation by Na Addition

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