The effect of combined colloidal nano silver-hydrothermal treatment on weight changes and chemical structure of beech wood (Fagus orientalis)
Synthesis of colloidal silver nano-particles, as well as the effect of combined colloidal nano-silver and hydrothermal modification, on weight and chemical changes of wood particles through spectroscopic FTIR were investigated. Treatment levels were divided in 4 groups namely, control, nano- impregn...
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| Format: | Article |
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Iranian Scientific Association of Wood and Paper Industries
2015-05-01
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| Series: | Iranian Journal of Wood and Paper Industries |
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| Online Access: | http://www.ijwp.ir/article_12532_080ea9c91882f368a23a332b23be7285.pdf |
| _version_ | 1819043891602522112 |
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| author | مریم قربانی rahim aghayi poriya biparva |
| author_facet | مریم قربانی rahim aghayi poriya biparva |
| author_sort | مریم قربانی |
| collection | DOAJ |
| description | Synthesis of colloidal silver nano-particles, as well as the effect of combined colloidal nano-silver and hydrothermal modification, on weight and chemical changes of wood particles through spectroscopic FTIR were investigated. Treatment levels were divided in 4 groups namely, control, nano- impregnated, hydrothermal and nano-hydrothermal. Hydrothermal and nano-hydrothermal treatments were separated in two temperatures (150 and 170 °C) and two times (30 and 45 min) with total of 10 treatment levels. Colloidal Nano silver with 100 ppm concentration was prepared. The scanning electron microscope images proved the presence, size and appropriate distribution of colloidal nanoparticles silver in wood particles clearly. With regard to the results, increasing time and temperature hydrothermal treatment had significant effect on weight changes. Also, colloidal nano silver intensified weight loss, that maximum weight loss was measured at 170°C. The FTIR spectra indicated that increase in the temperature and time of hydrothermal treatment, declined absorbance intensities in wave numbers of 3422.25, 2922.38, 1740.55, 1330.50, 1243.39 and 1053.05cm-1 due to breakdown of acetyl groups in hemicelluloses and decrease in hydrophilic sites. These reduction in nano hydrothermal treatment were more obvious than those for hydrothermal. |
| first_indexed | 2024-12-21T10:03:59Z |
| format | Article |
| id | doaj.art-d6a3bcfefaf74884bfa9c5c0372dfeb2 |
| institution | Directory Open Access Journal |
| issn | 2008-9066 2423-3242 |
| language | fas |
| last_indexed | 2024-12-21T10:03:59Z |
| publishDate | 2015-05-01 |
| publisher | Iranian Scientific Association of Wood and Paper Industries |
| record_format | Article |
| series | Iranian Journal of Wood and Paper Industries |
| spelling | doaj.art-d6a3bcfefaf74884bfa9c5c0372dfeb22022-12-21T19:07:53ZfasIranian Scientific Association of Wood and Paper IndustriesIranian Journal of Wood and Paper Industries2008-90662423-32422015-05-016110911812532The effect of combined colloidal nano silver-hydrothermal treatment on weight changes and chemical structure of beech wood (Fagus orientalis)مریم قربانی0rahim aghayi1poriya biparva2دانشیار دانشگاه علوم کشاورزی و منابع طبیعی ساری، دانشکده منابع طبیعی، گروه مهندسی چوب و کاغذM.Sc. Student Department of Wood and Paper Science and Technology, Faculty of Natural Resources, Sari University of Agricultural Sciences and Natural ResourcesAssistant Professor, Department of Wood and Paper Science and Technology, Faculty of Natural Resources, Sari University of Agricultural Sciences and Natural ResourcesSynthesis of colloidal silver nano-particles, as well as the effect of combined colloidal nano-silver and hydrothermal modification, on weight and chemical changes of wood particles through spectroscopic FTIR were investigated. Treatment levels were divided in 4 groups namely, control, nano- impregnated, hydrothermal and nano-hydrothermal. Hydrothermal and nano-hydrothermal treatments were separated in two temperatures (150 and 170 °C) and two times (30 and 45 min) with total of 10 treatment levels. Colloidal Nano silver with 100 ppm concentration was prepared. The scanning electron microscope images proved the presence, size and appropriate distribution of colloidal nanoparticles silver in wood particles clearly. With regard to the results, increasing time and temperature hydrothermal treatment had significant effect on weight changes. Also, colloidal nano silver intensified weight loss, that maximum weight loss was measured at 170°C. The FTIR spectra indicated that increase in the temperature and time of hydrothermal treatment, declined absorbance intensities in wave numbers of 3422.25, 2922.38, 1740.55, 1330.50, 1243.39 and 1053.05cm-1 due to breakdown of acetyl groups in hemicelluloses and decrease in hydrophilic sites. These reduction in nano hydrothermal treatment were more obvious than those for hydrothermal.http://www.ijwp.ir/article_12532_080ea9c91882f368a23a332b23be7285.pdfColloidal nano silver- hydrothermalBeechweight changesFTIRScanning electron microscope |
| spellingShingle | مریم قربانی rahim aghayi poriya biparva The effect of combined colloidal nano silver-hydrothermal treatment on weight changes and chemical structure of beech wood (Fagus orientalis) Iranian Journal of Wood and Paper Industries Colloidal nano silver- hydrothermal Beech weight changes FTIR Scanning electron microscope |
| title | The effect of combined colloidal nano silver-hydrothermal treatment on weight changes and chemical structure of beech wood (Fagus orientalis) |
| title_full | The effect of combined colloidal nano silver-hydrothermal treatment on weight changes and chemical structure of beech wood (Fagus orientalis) |
| title_fullStr | The effect of combined colloidal nano silver-hydrothermal treatment on weight changes and chemical structure of beech wood (Fagus orientalis) |
| title_full_unstemmed | The effect of combined colloidal nano silver-hydrothermal treatment on weight changes and chemical structure of beech wood (Fagus orientalis) |
| title_short | The effect of combined colloidal nano silver-hydrothermal treatment on weight changes and chemical structure of beech wood (Fagus orientalis) |
| title_sort | effect of combined colloidal nano silver hydrothermal treatment on weight changes and chemical structure of beech wood fagus orientalis |
| topic | Colloidal nano silver- hydrothermal Beech weight changes FTIR Scanning electron microscope |
| url | http://www.ijwp.ir/article_12532_080ea9c91882f368a23a332b23be7285.pdf |
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