Study on photocatalytic oxidation for determination of the low chemical oxygen demand using a nano-TiO2-Ce(SO4)2 coexisted system

Yihao Chai; Hongchun Ding; Zhonghai Zhang; Yuezhong Xian; Zhensheng Pan; Litong Jin

doi:10.1016/j.talanta.2005.04.074

Study on photocatalytic oxidation for determination of the low chemical oxygen demand using a nano-TiO₂-Ce(SO₄)₂ coexisted system

Yihao Chai, Hongchun Ding, Zhonghai Zhang, Yuezhong Xian, Zhensheng Pan, Litong Jin^*

^*Corresponding author for this work

School of Chemistry and Molecular Engineering

East China Normal University

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

30 Scopus citations

Abstract

A new photocatalytic system, nano-TiO₂-Ce(SO₄) ₂ coexisted system, which can be used to determine the low chemical oxygen demand (COD) is described. Nano-TiO₂ powders is used as photocatalyst in this system. The measuring method is based on direct determination of the concentration change of Ce(IV) resulting from photocatalytic oxidation of organic compounds. The mechanism of the photocatalytic oxidation for COD determination was discussed and the optimum experimental conditions were investigated. Under the optimum conditions, a good calibration graph for COD values between 1.0 and 12 mg l^-1 was obtained and the LOD value was achieved as low as 0.4 mg l^-1. When determining the real samples, the results were in good agreement with those from the conventional methods.

Original language	English
Pages (from-to)	610-615
Number of pages	6
Journal	Talanta
Volume	68
Issue number	3
DOIs	https://doi.org/10.1016/j.talanta.2005.04.074
State	Published - 15 Jan 2006

Keywords

Ce(IV)
Chemical oxygen demand (COD)
Photocatalytic oxidation
Synergistic reaction
TiO
Ultraviolet spectrophotometry

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10.1016/j.talanta.2005.04.074

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title = "Study on photocatalytic oxidation for determination of the low chemical oxygen demand using a nano-TiO2-Ce(SO4)2 coexisted system",

abstract = "A new photocatalytic system, nano-TiO2-Ce(SO4) 2 coexisted system, which can be used to determine the low chemical oxygen demand (COD) is described. Nano-TiO2 powders is used as photocatalyst in this system. The measuring method is based on direct determination of the concentration change of Ce(IV) resulting from photocatalytic oxidation of organic compounds. The mechanism of the photocatalytic oxidation for COD determination was discussed and the optimum experimental conditions were investigated. Under the optimum conditions, a good calibration graph for COD values between 1.0 and 12 mg l-1 was obtained and the LOD value was achieved as low as 0.4 mg l-1. When determining the real samples, the results were in good agreement with those from the conventional methods.",

keywords = "Ce(IV), Chemical oxygen demand (COD), Photocatalytic oxidation, Synergistic reaction, TiO, Ultraviolet spectrophotometry",

author = "Yihao Chai and Hongchun Ding and Zhonghai Zhang and Yuezhong Xian and Zhensheng Pan and Litong Jin",

year = "2006",

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doi = "10.1016/j.talanta.2005.04.074",

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T1 - Study on photocatalytic oxidation for determination of the low chemical oxygen demand using a nano-TiO2-Ce(SO4)2 coexisted system

AU - Chai, Yihao

AU - Ding, Hongchun

AU - Zhang, Zhonghai

AU - Xian, Yuezhong

AU - Pan, Zhensheng

AU - Jin, Litong

PY - 2006/1/15

Y1 - 2006/1/15

N2 - A new photocatalytic system, nano-TiO2-Ce(SO4) 2 coexisted system, which can be used to determine the low chemical oxygen demand (COD) is described. Nano-TiO2 powders is used as photocatalyst in this system. The measuring method is based on direct determination of the concentration change of Ce(IV) resulting from photocatalytic oxidation of organic compounds. The mechanism of the photocatalytic oxidation for COD determination was discussed and the optimum experimental conditions were investigated. Under the optimum conditions, a good calibration graph for COD values between 1.0 and 12 mg l-1 was obtained and the LOD value was achieved as low as 0.4 mg l-1. When determining the real samples, the results were in good agreement with those from the conventional methods.

AB - A new photocatalytic system, nano-TiO2-Ce(SO4) 2 coexisted system, which can be used to determine the low chemical oxygen demand (COD) is described. Nano-TiO2 powders is used as photocatalyst in this system. The measuring method is based on direct determination of the concentration change of Ce(IV) resulting from photocatalytic oxidation of organic compounds. The mechanism of the photocatalytic oxidation for COD determination was discussed and the optimum experimental conditions were investigated. Under the optimum conditions, a good calibration graph for COD values between 1.0 and 12 mg l-1 was obtained and the LOD value was achieved as low as 0.4 mg l-1. When determining the real samples, the results were in good agreement with those from the conventional methods.

KW - Ce(IV)

KW - Chemical oxygen demand (COD)

KW - Photocatalytic oxidation

KW - Synergistic reaction

KW - TiO

KW - Ultraviolet spectrophotometry

UR - https://www.scopus.com/pages/publications/30144446368

U2 - 10.1016/j.talanta.2005.04.074

DO - 10.1016/j.talanta.2005.04.074

M3 - 文章

AN - SCOPUS:30144446368

SN - 0039-9140

VL - 68

SP - 610

EP - 615

JO - Talanta

JF - Talanta

IS - 3

ER -

Study on photocatalytic oxidation for determination of the low chemical oxygen demand using a nano-TiO₂-Ce(SO₄)₂ coexisted system

Abstract

Keywords

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