Degradation of macromolecular tannic acid by O3/H 2O2

S. Ji-Min; L. Xue-Yan; C. Zhong-Lin; G. Xiao-Hong; Z. Xue; X. Zhen-Zhen

doi:10.2166/wst.2008.609

Degradation of macromolecular tannic acid by O₃/H ₂O₂

S. Ji-Min^*
, L. Xue-Yan
, C. Zhong-Lin
, G. Xiao-Hong
, Z. Xue
, X. Zhen-Zhen

^*Corresponding author for this work

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

9 Scopus citations

Abstract

Tannic acid, being polyhydroxyl, is a macromolecule natural organic matter. The efficiency and mechanism of degradation of tannic acid by O₃ and O₃/H₂O₂ was studied. The results showed that the addition of H₂O₂ had no obvious improvement on the ozonation efficiency of tannin. It was observed that the addition of H ₂O₂ decreased the removal efficiency of TOC by 10%. The relative intensity of ·OH generated in the O₃-H ₂O₂ system was detected by electronic spin resonance (ESR) and it was found that tannin consumed the ·OH radicals, which may be associated with the polyhydroxyl structure of tannin. Derived with PFBBr and analysed by GC-ECD, the by-products of tannin ozonation were found to be aldehydes such as acetaldehyde, glyoxal and methyl glyoxal. Analysis with an ion chromatogram showed that the final products of tannin were oxalic acid, ketomalonic acid and oxalic acid, which consisted of 35% of TOC in both systems.

Original language	English
Pages (from-to)	2043-2050
Number of pages	8
Journal	Water Science and Technology
Volume	57
Issue number	12
DOIs	https://doi.org/10.2166/wst.2008.609
State	Published - 2008
Externally published	Yes

Keywords

ESR
Hydroxy radical
Ozonation
Reaction mechanism
Tannic acid

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10.2166/wst.2008.609

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title = "Degradation of macromolecular tannic acid by O3/H 2O2",

abstract = "Tannic acid, being polyhydroxyl, is a macromolecule natural organic matter. The efficiency and mechanism of degradation of tannic acid by O3 and O3/H2O2 was studied. The results showed that the addition of H2O2 had no obvious improvement on the ozonation efficiency of tannin. It was observed that the addition of H 2O2 decreased the removal efficiency of TOC by 10\%. The relative intensity of ·OH generated in the O3-H 2O2 system was detected by electronic spin resonance (ESR) and it was found that tannin consumed the ·OH radicals, which may be associated with the polyhydroxyl structure of tannin. Derived with PFBBr and analysed by GC-ECD, the by-products of tannin ozonation were found to be aldehydes such as acetaldehyde, glyoxal and methyl glyoxal. Analysis with an ion chromatogram showed that the final products of tannin were oxalic acid, ketomalonic acid and oxalic acid, which consisted of 35\% of TOC in both systems.",

keywords = "ESR, Hydroxy radical, Ozonation, Reaction mechanism, Tannic acid",

author = "S. Ji-Min and L. Xue-Yan and C. Zhong-Lin and G. Xiao-Hong and Z. Xue and X. Zhen-Zhen",

year = "2008",

doi = "10.2166/wst.2008.609",

language = "英语",

volume = "57",

pages = "2043--2050",

journal = "Water Science and Technology",

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TY - JOUR

T1 - Degradation of macromolecular tannic acid by O3/H 2O2

AU - Ji-Min, S.

AU - Xue-Yan, L.

AU - Zhong-Lin, C.

AU - Xiao-Hong, G.

AU - Xue, Z.

AU - Zhen-Zhen, X.

PY - 2008

Y1 - 2008

N2 - Tannic acid, being polyhydroxyl, is a macromolecule natural organic matter. The efficiency and mechanism of degradation of tannic acid by O3 and O3/H2O2 was studied. The results showed that the addition of H2O2 had no obvious improvement on the ozonation efficiency of tannin. It was observed that the addition of H 2O2 decreased the removal efficiency of TOC by 10%. The relative intensity of ·OH generated in the O3-H 2O2 system was detected by electronic spin resonance (ESR) and it was found that tannin consumed the ·OH radicals, which may be associated with the polyhydroxyl structure of tannin. Derived with PFBBr and analysed by GC-ECD, the by-products of tannin ozonation were found to be aldehydes such as acetaldehyde, glyoxal and methyl glyoxal. Analysis with an ion chromatogram showed that the final products of tannin were oxalic acid, ketomalonic acid and oxalic acid, which consisted of 35% of TOC in both systems.

AB - Tannic acid, being polyhydroxyl, is a macromolecule natural organic matter. The efficiency and mechanism of degradation of tannic acid by O3 and O3/H2O2 was studied. The results showed that the addition of H2O2 had no obvious improvement on the ozonation efficiency of tannin. It was observed that the addition of H 2O2 decreased the removal efficiency of TOC by 10%. The relative intensity of ·OH generated in the O3-H 2O2 system was detected by electronic spin resonance (ESR) and it was found that tannin consumed the ·OH radicals, which may be associated with the polyhydroxyl structure of tannin. Derived with PFBBr and analysed by GC-ECD, the by-products of tannin ozonation were found to be aldehydes such as acetaldehyde, glyoxal and methyl glyoxal. Analysis with an ion chromatogram showed that the final products of tannin were oxalic acid, ketomalonic acid and oxalic acid, which consisted of 35% of TOC in both systems.

KW - ESR

KW - Hydroxy radical

KW - Ozonation

KW - Reaction mechanism

KW - Tannic acid

UR - https://www.scopus.com/pages/publications/48049098575

U2 - 10.2166/wst.2008.609

DO - 10.2166/wst.2008.609

M3 - 文章

C2 - 18587196

AN - SCOPUS:48049098575

SN - 0273-1223

VL - 57

SP - 2043

EP - 2050

JO - Water Science and Technology

JF - Water Science and Technology

IS - 12

ER -

Degradation of macromolecular tannic acid by O₃/H ₂O₂

Abstract

Keywords

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