Ultra-sustainable Fe 78 Si 9 B 13 metallic glass as a catalyst for activation of persulfate on methylene blue degradation under UV-Vis light
Stability and reusability are important characteristics of advanced catalysts for wastewater treatment. In this work, for the first time, sulfate radicals (SO4') with a high oxidative potential (Eo = 2.5-3.1 V) were successfully activated from persulfate by a Fe78Si9B13 metallic glass. This all...
| Main Authors: | , , , , , , |
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| Format: | Journal Article |
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Nature Publishing Group
2016
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| Online Access: | http://purl.org/au-research/grants/arc/DP130103592 http://hdl.handle.net/20.500.11937/21477 |
| _version_ | 1848750601206235136 |
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| author | Jia, Z. Duan, Xiaoguang Zhang, W. Wang, W. Sun, Hongqi Wang, Shaobin Zhang, L. |
| author_facet | Jia, Z. Duan, Xiaoguang Zhang, W. Wang, W. Sun, Hongqi Wang, Shaobin Zhang, L. |
| author_sort | Jia, Z. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | Stability and reusability are important characteristics of advanced catalysts for wastewater treatment. In this work, for the first time, sulfate radicals (SO4') with a high oxidative potential (Eo = 2.5-3.1 V) were successfully activated from persulfate by a Fe78Si9B13 metallic glass. This alloy exhibited a superior surface stability and reusability while activating persulfate as indicated by it being used for 30 times while maintaining an acceptable methylene blue (MB) degradation rate. The produced SiO2 layer on the ribbon surface expanded strongly from the fresh use to the 20th use, providing stable protection of the buried Fe. MB degradation and kinetic study revealed 100% of the dye degradation with a kinetic rate k = 0.640 within 20 min under rational parameter control. The dominant reactive species for dye molecule decomposition in the first 10 min of the reaction was hydroxyl radicals (OH,Eo = 2.7 V) and in the last 10 min was sulfate radicals (SO4'), respectively. Empirical operating variables for dye degradation in this work were under catalyst dosage 0.5 g/L, light irradiation 7.7 µW/cm2, and persulfate concentration 1.0 mmol/L. The amorphous Fe78Si9B13 alloy in this work will open a new gate for wastewater remediation. © 2016 The Author(s). |
| first_indexed | 2025-11-14T07:39:25Z |
| format | Journal Article |
| id | curtin-20.500.11937-21477 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T07:39:25Z |
| publishDate | 2016 |
| publisher | Nature Publishing Group |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-214772020-12-03T03:52:45Z Ultra-sustainable Fe 78 Si 9 B 13 metallic glass as a catalyst for activation of persulfate on methylene blue degradation under UV-Vis light Jia, Z. Duan, Xiaoguang Zhang, W. Wang, W. Sun, Hongqi Wang, Shaobin Zhang, L. Stability and reusability are important characteristics of advanced catalysts for wastewater treatment. In this work, for the first time, sulfate radicals (SO4') with a high oxidative potential (Eo = 2.5-3.1 V) were successfully activated from persulfate by a Fe78Si9B13 metallic glass. This alloy exhibited a superior surface stability and reusability while activating persulfate as indicated by it being used for 30 times while maintaining an acceptable methylene blue (MB) degradation rate. The produced SiO2 layer on the ribbon surface expanded strongly from the fresh use to the 20th use, providing stable protection of the buried Fe. MB degradation and kinetic study revealed 100% of the dye degradation with a kinetic rate k = 0.640 within 20 min under rational parameter control. The dominant reactive species for dye molecule decomposition in the first 10 min of the reaction was hydroxyl radicals (OH,Eo = 2.7 V) and in the last 10 min was sulfate radicals (SO4'), respectively. Empirical operating variables for dye degradation in this work were under catalyst dosage 0.5 g/L, light irradiation 7.7 µW/cm2, and persulfate concentration 1.0 mmol/L. The amorphous Fe78Si9B13 alloy in this work will open a new gate for wastewater remediation. © 2016 The Author(s). 2016 Journal Article http://hdl.handle.net/20.500.11937/21477 10.1038/srep38520 http://purl.org/au-research/grants/arc/DP130103592 http://creativecommons.org/licenses/by/4.0/ Nature Publishing Group fulltext |
| spellingShingle | Jia, Z. Duan, Xiaoguang Zhang, W. Wang, W. Sun, Hongqi Wang, Shaobin Zhang, L. Ultra-sustainable Fe 78 Si 9 B 13 metallic glass as a catalyst for activation of persulfate on methylene blue degradation under UV-Vis light |
| title | Ultra-sustainable Fe 78 Si 9 B 13 metallic glass as a catalyst for activation of persulfate on methylene blue degradation under UV-Vis light |
| title_full | Ultra-sustainable Fe 78 Si 9 B 13 metallic glass as a catalyst for activation of persulfate on methylene blue degradation under UV-Vis light |
| title_fullStr | Ultra-sustainable Fe 78 Si 9 B 13 metallic glass as a catalyst for activation of persulfate on methylene blue degradation under UV-Vis light |
| title_full_unstemmed | Ultra-sustainable Fe 78 Si 9 B 13 metallic glass as a catalyst for activation of persulfate on methylene blue degradation under UV-Vis light |
| title_short | Ultra-sustainable Fe 78 Si 9 B 13 metallic glass as a catalyst for activation of persulfate on methylene blue degradation under UV-Vis light |
| title_sort | ultra-sustainable fe 78 si 9 b 13 metallic glass as a catalyst for activation of persulfate on methylene blue degradation under uv-vis light |
| url | http://purl.org/au-research/grants/arc/DP130103592 http://hdl.handle.net/20.500.11937/21477 |