Bioimpact on weathering steel surfaces: Oxalates formation and the elucidation of their origin

被引：14

作者：

Aramendia, Julene ^{[1
]}

Gomez-Nubla, Leticia ^{[1
]}

Bellot-Gurlet, Ludovic ^{[2
]}

Castro, Kepa ^{[1
]}

Arana, Gorka ^{[1
]}

Manuel Madariaga, Juan ^{[1
]}

机构：

[1] Univ Basque Country, UPV EHU, Dept Analyt Chem, E-48080 Bilbao, Spain

[2] Univ Paris 06, Sorbonne Univ, MONARIS Mol Nanoobjets React Interact & Spect, UMR 8233,UPMC CNRS, F-75252 Paris 05, France

来源：

INTERNATIONAL BIODETERIORATION & BIODEGRADATION | 2015年 / 104卷

关键词：

Weathering steel; Oxalates; Humboldtine; Raman spectroscopy; Thermodynamic; MICROBIOLOGICALLY INFLUENCED CORROSION; CARBON-STEEL; RAMAN-SPECTROSCOPY; ATMOSPHERIC CORROSION; CONSERVATION STATE; PROTECTIVE ABILITY; URBAN ATMOSPHERES; CULTURAL-HERITAGE; FT-RAMAN; SO2;

D O I：

10.1016/j.ibiod.2015.05.011

中图分类号：

Q81 [生物工程学（生物技术）]; Q93 [微生物学];

学科分类号：

071005 ; 0836 ; 090102 ; 100705 ;

摘要：

This study was carried out to elucidate the causes of irregularities and discolorations on the surface of parts of a weathering steel sculpture which had been in contact with wood pallets. Non-destructive analysis of the samples by Raman spectroscopy revealed the presence of iron oxalates and calcium oxalates. Thermodynamic modeling suggested that the detected oxalates were produced by the reaction of oxalic acid, a potential metabolite excreted by microorganisms, and elements present in the steel surface such as iron. Carotenoids including beta-carotene and astaxanthin, biomarkers for a large number of prokaryotic and eukaryotic microorganisms, were also detected in samples. (c) 2015 Elsevier Ltd. All rights reserved.

引用

页码：59 / 66

页数：8

共 38 条

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[Anonymous], BRICK MORTAR RES

[2] Multianalytical approach to study the dissolution process of weathering steel: The role of urban pollution [J].