Study on oxidant strengthening photocatalytic degradation of DMF over TiO2 fiber catalyst

Zhi Guo Liu; Zhu Hong Yang; Zhong Zheng; Ming He; Xin Feng; Xiao Hua Lu; Qiu Ming Huang; Hong Lin Xu; Zi Long Que

Study on oxidant strengthening photocatalytic degradation of DMF over TiO₂ fiber catalyst

Zhi Guo Liu, Zhu Hong Yang, Zhong Zheng, Ming He, Xin Feng, Xiao Hua Lu, Qiu Ming Huang, Hong Lin Xu, Zi Long Que

College of Chemical Engineering

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

4 Scopus citations

Abstract

Oxidant strengthening the degradation of DMF aqueous solution was investigated when TiO₂ fiber is used as the photocatalyst. When the UV light was absent, ozone per se could not make DMF degrade, which proves that DMF is a stable substance. But ozone could increase obviously photocatalytic degradation rate of DMF in O₃/TiO₂(F). Under the same reaction condition, photocatalytic degradation rate and speed of DMF in O₃/TiO₂(F) was almost 1.5 times and 2 times higher than that in air/TiO₂(F) and H₂O₂/TiO₂F) respectively. COD analysis showed DMF was almost mineralized completely when the reaction was carried out for 120 min. Through Hinsberg test secondary amine was proved as one of intermediates in the process of DMF photocatalytic degradation. Rise of pH value of reaction solution also showed that amine was produced in the photocatalytic reaction process. Degradation speed of DMA in O₃/TiO₂(F) was higher than that in air/TiO₂(F). The increasing degradation rate and speed of DMF was mainly catsed by fast degradation of secondary amine in the process of DMF photocatalytic degradation in O₃/TiO₂(F).

Original language	English
Pages (from-to)	47-50
Number of pages	4
Journal	Huanjing Kexue/Environmental Science
Volume	27
Issue number	1
State	Published - Jan 2006

Keywords

Dimethylformamide
Oxidant
Ozone
Photocatalysis
Titanium dioxide fiber
Wastewater treatment

Cite this

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title = "Study on oxidant strengthening photocatalytic degradation of DMF over TiO2 fiber catalyst",

abstract = "Oxidant strengthening the degradation of DMF aqueous solution was investigated when TiO2 fiber is used as the photocatalyst. When the UV light was absent, ozone per se could not make DMF degrade, which proves that DMF is a stable substance. But ozone could increase obviously photocatalytic degradation rate of DMF in O3/TiO2(F). Under the same reaction condition, photocatalytic degradation rate and speed of DMF in O3/TiO2(F) was almost 1.5 times and 2 times higher than that in air/TiO2(F) and H2O2/TiO2F) respectively. COD analysis showed DMF was almost mineralized completely when the reaction was carried out for 120 min. Through Hinsberg test secondary amine was proved as one of intermediates in the process of DMF photocatalytic degradation. Rise of pH value of reaction solution also showed that amine was produced in the photocatalytic reaction process. Degradation speed of DMA in O3/TiO2(F) was higher than that in air/TiO2(F). The increasing degradation rate and speed of DMF was mainly catsed by fast degradation of secondary amine in the process of DMF photocatalytic degradation in O3/TiO2(F).",

keywords = "Dimethylformamide, Oxidant, Ozone, Photocatalysis, Titanium dioxide fiber, Wastewater treatment",

author = "Liu, {Zhi Guo} and Yang, {Zhu Hong} and Zhong Zheng and Ming He and Xin Feng and Lu, {Xiao Hua} and Huang, {Qiu Ming} and Xu, {Hong Lin} and Que, {Zi Long}",

year = "2006",

month = jan,

language = "英语",

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pages = "47--50",

journal = "Huanjing Kexue/Environmental Science",

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T1 - Study on oxidant strengthening photocatalytic degradation of DMF over TiO2 fiber catalyst

AU - Liu, Zhi Guo

AU - Yang, Zhu Hong

AU - Zheng, Zhong

AU - He, Ming

AU - Feng, Xin

AU - Lu, Xiao Hua

AU - Huang, Qiu Ming

AU - Xu, Hong Lin

AU - Que, Zi Long

PY - 2006/1

Y1 - 2006/1

N2 - Oxidant strengthening the degradation of DMF aqueous solution was investigated when TiO2 fiber is used as the photocatalyst. When the UV light was absent, ozone per se could not make DMF degrade, which proves that DMF is a stable substance. But ozone could increase obviously photocatalytic degradation rate of DMF in O3/TiO2(F). Under the same reaction condition, photocatalytic degradation rate and speed of DMF in O3/TiO2(F) was almost 1.5 times and 2 times higher than that in air/TiO2(F) and H2O2/TiO2F) respectively. COD analysis showed DMF was almost mineralized completely when the reaction was carried out for 120 min. Through Hinsberg test secondary amine was proved as one of intermediates in the process of DMF photocatalytic degradation. Rise of pH value of reaction solution also showed that amine was produced in the photocatalytic reaction process. Degradation speed of DMA in O3/TiO2(F) was higher than that in air/TiO2(F). The increasing degradation rate and speed of DMF was mainly catsed by fast degradation of secondary amine in the process of DMF photocatalytic degradation in O3/TiO2(F).

AB - Oxidant strengthening the degradation of DMF aqueous solution was investigated when TiO2 fiber is used as the photocatalyst. When the UV light was absent, ozone per se could not make DMF degrade, which proves that DMF is a stable substance. But ozone could increase obviously photocatalytic degradation rate of DMF in O3/TiO2(F). Under the same reaction condition, photocatalytic degradation rate and speed of DMF in O3/TiO2(F) was almost 1.5 times and 2 times higher than that in air/TiO2(F) and H2O2/TiO2F) respectively. COD analysis showed DMF was almost mineralized completely when the reaction was carried out for 120 min. Through Hinsberg test secondary amine was proved as one of intermediates in the process of DMF photocatalytic degradation. Rise of pH value of reaction solution also showed that amine was produced in the photocatalytic reaction process. Degradation speed of DMA in O3/TiO2(F) was higher than that in air/TiO2(F). The increasing degradation rate and speed of DMF was mainly catsed by fast degradation of secondary amine in the process of DMF photocatalytic degradation in O3/TiO2(F).

KW - Dimethylformamide

KW - Oxidant

KW - Ozone

KW - Photocatalysis

KW - Titanium dioxide fiber

KW - Wastewater treatment

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M3 - 文章

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AN - SCOPUS:32844474527

SN - 0250-3301

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JO - Huanjing Kexue/Environmental Science

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ER -

Study on oxidant strengthening photocatalytic degradation of DMF over TiO₂ fiber catalyst

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