Pathway of aqueous ferric hydroxide catalyzed ozone decomposition and ozonation of trace nitrobenzene

Jun Ma; Tao Zhang; Zhong Lin Chen; Ming Hao Sui; Xue Yan Li

Pathway of aqueous ferric hydroxide catalyzed ozone decomposition and ozonation of trace nitrobenzene

Jun Ma^*, Tao Zhang, Zhong Lin Chen, Ming Hao Sui, Xue Yan Li

^*Corresponding author for this work

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

25 Scopus citations

Abstract

In this paper, the decomposition rate of ozone in water was measured over GAC and ferric hydroxide/GAC (FeOOH/GAC) catalyst and the mechanism of ozone catalytic decomposition was discussed. The catalytic ozonation activity of trace nitrobenzene in water was determined on several metal oxides and correlated with their surface density of hydroxyl groups and pH_zpc(pH of zero point of charge). The results show that: (1) The pseudo-first order rate of ozone decomposition increased by 68 and 108 percent for GAC and FeOOH/GAC catalysts respectively; (2) When t-butanol was added, the rate constant decreased by 9% for GAC and 20% for FeOOH/GAC; (3) There was no direct correlation between surface density of hydroxyl groups and the activity of catalytic ozonation of nitrobenzene; (4) The oxide surface at nearly zero charged point was favorable for the catalytic ozonation of nitrobenzene.

Original language	English (US)
Pages (from-to)	78-82
Number of pages	5
Journal	Huanjing Kexue/Environmental Science
Volume	26
Issue number	2
State	Published - Mar 2005
Externally published	Yes

Keywords

Catalytic ozonation
FeOOH
Hydroxyl radicals
Nitrobenzene
Surface hydroxyl groups
pH

ASJC Scopus subject areas

General Environmental Science

Cite this

@article{9447a407e2bf412d8a915f91f72e1934,

title = "Pathway of aqueous ferric hydroxide catalyzed ozone decomposition and ozonation of trace nitrobenzene",

abstract = "In this paper, the decomposition rate of ozone in water was measured over GAC and ferric hydroxide/GAC (FeOOH/GAC) catalyst and the mechanism of ozone catalytic decomposition was discussed. The catalytic ozonation activity of trace nitrobenzene in water was determined on several metal oxides and correlated with their surface density of hydroxyl groups and pHzpc(pH of zero point of charge). The results show that: (1) The pseudo-first order rate of ozone decomposition increased by 68 and 108 percent for GAC and FeOOH/GAC catalysts respectively; (2) When t-butanol was added, the rate constant decreased by 9% for GAC and 20% for FeOOH/GAC; (3) There was no direct correlation between surface density of hydroxyl groups and the activity of catalytic ozonation of nitrobenzene; (4) The oxide surface at nearly zero charged point was favorable for the catalytic ozonation of nitrobenzene.",

keywords = "Catalytic ozonation, FeOOH, Hydroxyl radicals, Nitrobenzene, Surface hydroxyl groups, pH",

author = "Jun Ma and Tao Zhang and Chen, {Zhong Lin} and Sui, {Ming Hao} and Li, {Xue Yan}",

year = "2005",

month = mar,

language = "English (US)",

volume = "26",

pages = "78--82",

journal = "Huanjing Kexue/Environmental Science",

issn = "0250-3301",

publisher = "Science Press",

number = "2",

}

TY - JOUR

T1 - Pathway of aqueous ferric hydroxide catalyzed ozone decomposition and ozonation of trace nitrobenzene

AU - Ma, Jun

AU - Zhang, Tao

AU - Chen, Zhong Lin

AU - Sui, Ming Hao

AU - Li, Xue Yan

PY - 2005/3

Y1 - 2005/3

N2 - In this paper, the decomposition rate of ozone in water was measured over GAC and ferric hydroxide/GAC (FeOOH/GAC) catalyst and the mechanism of ozone catalytic decomposition was discussed. The catalytic ozonation activity of trace nitrobenzene in water was determined on several metal oxides and correlated with their surface density of hydroxyl groups and pHzpc(pH of zero point of charge). The results show that: (1) The pseudo-first order rate of ozone decomposition increased by 68 and 108 percent for GAC and FeOOH/GAC catalysts respectively; (2) When t-butanol was added, the rate constant decreased by 9% for GAC and 20% for FeOOH/GAC; (3) There was no direct correlation between surface density of hydroxyl groups and the activity of catalytic ozonation of nitrobenzene; (4) The oxide surface at nearly zero charged point was favorable for the catalytic ozonation of nitrobenzene.

AB - In this paper, the decomposition rate of ozone in water was measured over GAC and ferric hydroxide/GAC (FeOOH/GAC) catalyst and the mechanism of ozone catalytic decomposition was discussed. The catalytic ozonation activity of trace nitrobenzene in water was determined on several metal oxides and correlated with their surface density of hydroxyl groups and pHzpc(pH of zero point of charge). The results show that: (1) The pseudo-first order rate of ozone decomposition increased by 68 and 108 percent for GAC and FeOOH/GAC catalysts respectively; (2) When t-butanol was added, the rate constant decreased by 9% for GAC and 20% for FeOOH/GAC; (3) There was no direct correlation between surface density of hydroxyl groups and the activity of catalytic ozonation of nitrobenzene; (4) The oxide surface at nearly zero charged point was favorable for the catalytic ozonation of nitrobenzene.

KW - Catalytic ozonation

KW - FeOOH

KW - Hydroxyl radicals

KW - Nitrobenzene

KW - Surface hydroxyl groups

KW - pH

UR - http://www.scopus.com/inward/record.url?scp=15744385290&partnerID=8YFLogxK

M3 - Article

C2 - 16004304

AN - SCOPUS:15744385290

SN - 0250-3301

VL - 26

SP - 78

EP - 82

JO - Huanjing Kexue/Environmental Science

JF - Huanjing Kexue/Environmental Science

IS - 2

ER -

Pathway of aqueous ferric hydroxide catalyzed ozone decomposition and ozonation of trace nitrobenzene

Abstract

Keywords

ASJC Scopus subject areas

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