Reduced Graphene Oxide for Catalytic Oxidation of Aqueous Organic Pollutants
We discovered that chemically reduced graphene oxide, with an ID/IG >1.4 (defective to graphite) can effectively activate peroxymonosulfate (PMS) to produce active sulfate radicals. The produced sulfate radicals (SO4•—) are powerful oxidizing species with a high oxidative potential (2.5–3.1 vs 2....
| Main Authors: | , , , , , |
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| Format: | Journal Article |
| Published: |
American Chemical Society
2012
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| Online Access: | http://hdl.handle.net/20.500.11937/37139 |
| _version_ | 1848754964450508800 |
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| author | Sun, Hongqi Liu, Shi Zhen Zhou, Guanliang Ang, Ming Tade, Moses Wang, Shaobin |
| author_facet | Sun, Hongqi Liu, Shi Zhen Zhou, Guanliang Ang, Ming Tade, Moses Wang, Shaobin |
| author_sort | Sun, Hongqi |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | We discovered that chemically reduced graphene oxide, with an ID/IG >1.4 (defective to graphite) can effectively activate peroxymonosulfate (PMS) to produce active sulfate radicals. The produced sulfate radicals (SO4•—) are powerful oxidizing species with a high oxidative potential (2.5–3.1 vs 2.7 V of hydroxyl radicals), and can effectively decompose various aqueous contaminants. Graphene demonstrated a higher activity than several carbon allotropes, such as activated carbon (AC), graphite powder (GP), graphene oxide (GO), and multiwall carbon nanotube (MWCNT). Kinetic study of graphene catalyzed activation of PMS was carried out. It was shown that graphene catalysis is superior to that on transition metal oxide (Co3O4) in degradation of phenol, 2,4-dichlorophenol (DCP) and a dye (methylene blue, MB) in water, therefore providing a novel strategy for environmental remediation. |
| first_indexed | 2025-11-14T08:48:46Z |
| format | Journal Article |
| id | curtin-20.500.11937-37139 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T08:48:46Z |
| publishDate | 2012 |
| publisher | American Chemical Society |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-371392017-10-02T02:27:58Z Reduced Graphene Oxide for Catalytic Oxidation of Aqueous Organic Pollutants Sun, Hongqi Liu, Shi Zhen Zhou, Guanliang Ang, Ming Tade, Moses Wang, Shaobin peroxymonosulfate graphene phenol aqueous organics oxidation sulfate radicals We discovered that chemically reduced graphene oxide, with an ID/IG >1.4 (defective to graphite) can effectively activate peroxymonosulfate (PMS) to produce active sulfate radicals. The produced sulfate radicals (SO4•—) are powerful oxidizing species with a high oxidative potential (2.5–3.1 vs 2.7 V of hydroxyl radicals), and can effectively decompose various aqueous contaminants. Graphene demonstrated a higher activity than several carbon allotropes, such as activated carbon (AC), graphite powder (GP), graphene oxide (GO), and multiwall carbon nanotube (MWCNT). Kinetic study of graphene catalyzed activation of PMS was carried out. It was shown that graphene catalysis is superior to that on transition metal oxide (Co3O4) in degradation of phenol, 2,4-dichlorophenol (DCP) and a dye (methylene blue, MB) in water, therefore providing a novel strategy for environmental remediation. 2012 Journal Article http://hdl.handle.net/20.500.11937/37139 10.1021/am301372d American Chemical Society restricted |
| spellingShingle | peroxymonosulfate graphene phenol aqueous organics oxidation sulfate radicals Sun, Hongqi Liu, Shi Zhen Zhou, Guanliang Ang, Ming Tade, Moses Wang, Shaobin Reduced Graphene Oxide for Catalytic Oxidation of Aqueous Organic Pollutants |
| title | Reduced Graphene Oxide for Catalytic Oxidation of Aqueous Organic Pollutants |
| title_full | Reduced Graphene Oxide for Catalytic Oxidation of Aqueous Organic Pollutants |
| title_fullStr | Reduced Graphene Oxide for Catalytic Oxidation of Aqueous Organic Pollutants |
| title_full_unstemmed | Reduced Graphene Oxide for Catalytic Oxidation of Aqueous Organic Pollutants |
| title_short | Reduced Graphene Oxide for Catalytic Oxidation of Aqueous Organic Pollutants |
| title_sort | reduced graphene oxide for catalytic oxidation of aqueous organic pollutants |
| topic | peroxymonosulfate graphene phenol aqueous organics oxidation sulfate radicals |
| url | http://hdl.handle.net/20.500.11937/37139 |