Evaluation of degradation in chemical compounds of wood in historical buildings using FT-IR and FT-Raman vibrational spectroscopy

Abstract: Vibrational spectroscopy approaches like FT-IR and FT-Raman, as analytical method, can be used to assess chemical changes in historical wood structures. In this study, wood samples of three historical buildings, in Gorgan, Iran, namely Tekie Estebar, Molla Esmaiel Mosque, and the Esmaieli...

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Autores principales:	Moosavinejad,Seyed Mahdi, Madhoushi,Mehrab, Vakili,Mohammad, Rasouli,Davood
Lenguaje:	English
Publicado:	Universidad del Bío-Bío 2019
Materias:	Guaiacyl lignin hardwood softwood wood carbohydrates wood durability.
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-221X2019000300381
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spelling	oai:scielo:S0718-221X20190003003812019-07-23Evaluation of degradation in chemical compounds of wood in historical buildings using FT-IR and FT-Raman vibrational spectroscopyMoosavinejad,Seyed MahdiMadhoushi,MehrabVakili,MohammadRasouli,Davood Guaiacyl lignin hardwood softwood wood carbohydrates wood durability. Abstract: Vibrational spectroscopy approaches like FT-IR and FT-Raman, as analytical method, can be used to assess chemical changes in historical wood structures. In this study, wood samples of three historical buildings, in Gorgan, Iran, namely Tekie Estebar, Molla Esmaiel Mosque, and the Esmaieli Buildings were selected. Wood species was determined by their macroscopic characteristics which were hornbeam (Carpinus betulus), oak (Quercus castaneifolia), beech (Fagus orientalis), and elm (Ulmus glabra), as hardwood species, and yew (Taxus baccata) as a softwood species. Also, some samples of oak were collected from northern and southern sides of the Esmaieli Building in order to compare deterioration environmental factors.. The approximate assignment of the experimental bands was completed by comparing. For this purpose, the experimental bands with the calculated band frequencies of cellulose, hemicellulose and lignin. In addition, the reported assignment for softwood and hardwood was used to confirm the vibrational assignments. The results of spectroscopy revealed that biodegradation had occurred in all species. Comparison between the most important vibrational band frequencies related to carbohydrates and lignin in hardwood species suggested that degradation of carbohydrates was greater than lignin, which could be attributed to brown rot and hydrolysis. Reduction of chemical compounds in south oak samples was higher and could be associated with prevailing wind and UV ray in this side. In the only softwood species (yew), because of its highest exposure to frequent raining, deterioration was observed in both carbohydrates and lignin.info:eu-repo/semantics/openAccessUniversidad del Bío-BíoMaderas. Ciencia y tecnología v.21 n.3 20192019-07-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-221X2019000300381en10.4067/S0718-221X2019005000310
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Guaiacyl lignin hardwood softwood wood carbohydrates wood durability.
spellingShingle	Guaiacyl lignin hardwood softwood wood carbohydrates wood durability. Moosavinejad,Seyed Mahdi Madhoushi,Mehrab Vakili,Mohammad Rasouli,Davood Evaluation of degradation in chemical compounds of wood in historical buildings using FT-IR and FT-Raman vibrational spectroscopy
description	Abstract: Vibrational spectroscopy approaches like FT-IR and FT-Raman, as analytical method, can be used to assess chemical changes in historical wood structures. In this study, wood samples of three historical buildings, in Gorgan, Iran, namely Tekie Estebar, Molla Esmaiel Mosque, and the Esmaieli Buildings were selected. Wood species was determined by their macroscopic characteristics which were hornbeam (Carpinus betulus), oak (Quercus castaneifolia), beech (Fagus orientalis), and elm (Ulmus glabra), as hardwood species, and yew (Taxus baccata) as a softwood species. Also, some samples of oak were collected from northern and southern sides of the Esmaieli Building in order to compare deterioration environmental factors.. The approximate assignment of the experimental bands was completed by comparing. For this purpose, the experimental bands with the calculated band frequencies of cellulose, hemicellulose and lignin. In addition, the reported assignment for softwood and hardwood was used to confirm the vibrational assignments. The results of spectroscopy revealed that biodegradation had occurred in all species. Comparison between the most important vibrational band frequencies related to carbohydrates and lignin in hardwood species suggested that degradation of carbohydrates was greater than lignin, which could be attributed to brown rot and hydrolysis. Reduction of chemical compounds in south oak samples was higher and could be associated with prevailing wind and UV ray in this side. In the only softwood species (yew), because of its highest exposure to frequent raining, deterioration was observed in both carbohydrates and lignin.
author	Moosavinejad,Seyed Mahdi Madhoushi,Mehrab Vakili,Mohammad Rasouli,Davood
author_facet	Moosavinejad,Seyed Mahdi Madhoushi,Mehrab Vakili,Mohammad Rasouli,Davood
author_sort	Moosavinejad,Seyed Mahdi
title	Evaluation of degradation in chemical compounds of wood in historical buildings using FT-IR and FT-Raman vibrational spectroscopy
title_short	Evaluation of degradation in chemical compounds of wood in historical buildings using FT-IR and FT-Raman vibrational spectroscopy
title_full	Evaluation of degradation in chemical compounds of wood in historical buildings using FT-IR and FT-Raman vibrational spectroscopy
title_fullStr	Evaluation of degradation in chemical compounds of wood in historical buildings using FT-IR and FT-Raman vibrational spectroscopy
title_full_unstemmed	Evaluation of degradation in chemical compounds of wood in historical buildings using FT-IR and FT-Raman vibrational spectroscopy
title_sort	evaluation of degradation in chemical compounds of wood in historical buildings using ft-ir and ft-raman vibrational spectroscopy
publisher	Universidad del Bío-Bío
publishDate	2019
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-221X2019000300381
work_keys_str_mv	AT moosavinejadseyedmahdi evaluationofdegradationinchemicalcompoundsofwoodinhistoricalbuildingsusingftirandftramanvibrationalspectroscopy AT madhoushimehrab evaluationofdegradationinchemicalcompoundsofwoodinhistoricalbuildingsusingftirandftramanvibrationalspectroscopy AT vakilimohammad evaluationofdegradationinchemicalcompoundsofwoodinhistoricalbuildingsusingftirandftramanvibrationalspectroscopy AT rasoulidavood evaluationofdegradationinchemicalcompoundsofwoodinhistoricalbuildingsusingftirandftramanvibrationalspectroscopy
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Evaluation of degradation in chemical compounds of wood in historical buildings using FT-IR and FT-Raman vibrational spectroscopy

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