Synthesis of tungsten iron-oxide zeolite composites and their catalytic degradation in VOC from rubber powder modified asphalt
Tungsten iron-oxide zeolite composites with different Fe and W loadings were synthesized over NaY zeolite supports using a wet impregnation method. The composites exhibited suitable textural properties, light absorption, redox sites and acidity for photocatalytic VOC degradation. The photocatalytic...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2024-05-01
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| Series: | Alexandria Engineering Journal |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S1110016824003120 |
| _version_ | 1797203094429237248 |
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| author | Yinghua Fan Chao Lyu Wenqiang Song Mingzheng Hao |
| author_facet | Yinghua Fan Chao Lyu Wenqiang Song Mingzheng Hao |
| author_sort | Yinghua Fan |
| collection | DOAJ |
| description | Tungsten iron-oxide zeolite composites with different Fe and W loadings were synthesized over NaY zeolite supports using a wet impregnation method. The composites exhibited suitable textural properties, light absorption, redox sites and acidity for photocatalytic VOC degradation. The photocatalytic activity for degrading acetaldehyde and o-xylene VOCs emitted from rubber powder modified asphalt was evaluated under solar irradiation. The 5Fe-10 W-NaY(2.8) composite achieved the highest VOC removal of 80% for acetaldehyde and 76% for o-xylene after 6 hours. Increasing Fe and W loading up to 5 wt% and 10 wt%, respectively, significantly enhanced the VOC degradation efficiency. Higher zeolite content and stronger acidity also boosted the photocatalytic performance. The degradation occurred via redox mechanisms involving photo-generated electrons, holes and reactive oxygen species, facilitated by the zeolite acid sites. The 5Fe-10 W-NaY(2.8) composite exhibited good stability over 5 reuse cycles, indicating its potential for mitigating VOC emissions from rubber powder modified asphalt pavements. |
| first_indexed | 2024-04-24T08:13:52Z |
| format | Article |
| id | doaj.art-5a08a1436e2f44a1bda27c5308df1559 |
| institution | Directory Open Access Journal |
| issn | 1110-0168 |
| language | English |
| last_indexed | 2024-04-24T08:13:52Z |
| publishDate | 2024-05-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Alexandria Engineering Journal |
| spelling | doaj.art-5a08a1436e2f44a1bda27c5308df15592024-04-17T04:48:42ZengElsevierAlexandria Engineering Journal1110-01682024-05-0194212218Synthesis of tungsten iron-oxide zeolite composites and their catalytic degradation in VOC from rubber powder modified asphaltYinghua Fan0Chao Lyu1Wenqiang Song2Mingzheng Hao3The Key Laboratory of Road and Traffic Engineering, Ministry of Education, Tongji University, Shanghai 201804, ChinaThe Department of Materials Engineering, Taiyuan Institute of Technology, Taiyuan 030008, ChinaThe Department of Materials Engineering, Taiyuan Institute of Technology, Taiyuan 030008, ChinaThe Department of Materials Engineering, Taiyuan Institute of Technology, Taiyuan 030008, China; Corresponding author.Tungsten iron-oxide zeolite composites with different Fe and W loadings were synthesized over NaY zeolite supports using a wet impregnation method. The composites exhibited suitable textural properties, light absorption, redox sites and acidity for photocatalytic VOC degradation. The photocatalytic activity for degrading acetaldehyde and o-xylene VOCs emitted from rubber powder modified asphalt was evaluated under solar irradiation. The 5Fe-10 W-NaY(2.8) composite achieved the highest VOC removal of 80% for acetaldehyde and 76% for o-xylene after 6 hours. Increasing Fe and W loading up to 5 wt% and 10 wt%, respectively, significantly enhanced the VOC degradation efficiency. Higher zeolite content and stronger acidity also boosted the photocatalytic performance. The degradation occurred via redox mechanisms involving photo-generated electrons, holes and reactive oxygen species, facilitated by the zeolite acid sites. The 5Fe-10 W-NaY(2.8) composite exhibited good stability over 5 reuse cycles, indicating its potential for mitigating VOC emissions from rubber powder modified asphalt pavements.http://www.sciencedirect.com/science/article/pii/S1110016824003120ZeolitePhotocatalystVOC degradationAsphaltRubber powder |
| spellingShingle | Yinghua Fan Chao Lyu Wenqiang Song Mingzheng Hao Synthesis of tungsten iron-oxide zeolite composites and their catalytic degradation in VOC from rubber powder modified asphalt Alexandria Engineering Journal Zeolite Photocatalyst VOC degradation Asphalt Rubber powder |
| title | Synthesis of tungsten iron-oxide zeolite composites and their catalytic degradation in VOC from rubber powder modified asphalt |
| title_full | Synthesis of tungsten iron-oxide zeolite composites and their catalytic degradation in VOC from rubber powder modified asphalt |
| title_fullStr | Synthesis of tungsten iron-oxide zeolite composites and their catalytic degradation in VOC from rubber powder modified asphalt |
| title_full_unstemmed | Synthesis of tungsten iron-oxide zeolite composites and their catalytic degradation in VOC from rubber powder modified asphalt |
| title_short | Synthesis of tungsten iron-oxide zeolite composites and their catalytic degradation in VOC from rubber powder modified asphalt |
| title_sort | synthesis of tungsten iron oxide zeolite composites and their catalytic degradation in voc from rubber powder modified asphalt |
| topic | Zeolite Photocatalyst VOC degradation Asphalt Rubber powder |
| url | http://www.sciencedirect.com/science/article/pii/S1110016824003120 |
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