Metal-free degradation of methyl orange: unprecedented catalytic efficiency of rice husk-derived graphitic carbon
Abstract Here, we report the fabrication of flake-like rice husk-derived chemically activated graphitic carbon (RCAGC) for metal-free degradation of MO under visible light conditions. RCAGC has been synthesised from biomass feedstock rice husk and characterized by Fourier transform infrared spectros...
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| Format: | Article |
| Language: | English |
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Springer
2025-07-01
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| Series: | Discover Materials |
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| Online Access: | https://doi.org/10.1007/s43939-025-00325-4 |
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| author | Kumkum Priyadarshini Sahu Subhash Banerjee |
| author_facet | Kumkum Priyadarshini Sahu Subhash Banerjee |
| author_sort | Kumkum Priyadarshini Sahu |
| collection | DOAJ |
| description | Abstract Here, we report the fabrication of flake-like rice husk-derived chemically activated graphitic carbon (RCAGC) for metal-free degradation of MO under visible light conditions. RCAGC has been synthesised from biomass feedstock rice husk and characterized by Fourier transform infrared spectroscopy, powder X-ray diffraction, and field emission scanning electron microscopy. Flake-like RCAGC demonstrated remarkable efficiency in the degradation of MO, and 100% degradation of MO was achieved within 9 min of illumination under visible light. Moreover, real-time analysis of RCAGC-catalysed dye degradation was performed by the flow method using a column packed with an alternate layer of RCAGC and silica, followed by passing a solution of MO (20 ppm) through the column. A completely degraded colourless eluent was obtained, demonstrating the practical application of RCAGC material for the remediation of organic dyes in domestic water. The role of reactive species in the degradation was established by scavenger test, and it was observed that electron plays a crucial role in the degradation of MO under visible light. |
| format | Article |
| id | doaj-art-b97335758402489fba655f5ed35a0d8a |
| institution | Kabale University |
| issn | 2730-7727 |
| language | English |
| publishDate | 2025-07-01 |
| publisher | Springer |
| record_format | Article |
| series | Discover Materials |
| spelling | doaj-art-b97335758402489fba655f5ed35a0d8a2025-08-20T03:46:24ZengSpringerDiscover Materials2730-77272025-07-015111310.1007/s43939-025-00325-4Metal-free degradation of methyl orange: unprecedented catalytic efficiency of rice husk-derived graphitic carbonKumkum Priyadarshini Sahu0Subhash Banerjee1Department of Chemistry, Guru Ghasidas VishwavidyalayaDepartment of Chemistry, Guru Ghasidas VishwavidyalayaAbstract Here, we report the fabrication of flake-like rice husk-derived chemically activated graphitic carbon (RCAGC) for metal-free degradation of MO under visible light conditions. RCAGC has been synthesised from biomass feedstock rice husk and characterized by Fourier transform infrared spectroscopy, powder X-ray diffraction, and field emission scanning electron microscopy. Flake-like RCAGC demonstrated remarkable efficiency in the degradation of MO, and 100% degradation of MO was achieved within 9 min of illumination under visible light. Moreover, real-time analysis of RCAGC-catalysed dye degradation was performed by the flow method using a column packed with an alternate layer of RCAGC and silica, followed by passing a solution of MO (20 ppm) through the column. A completely degraded colourless eluent was obtained, demonstrating the practical application of RCAGC material for the remediation of organic dyes in domestic water. The role of reactive species in the degradation was established by scavenger test, and it was observed that electron plays a crucial role in the degradation of MO under visible light.https://doi.org/10.1007/s43939-025-00325-4Chemically activated graphitic carbonBiomass feedstockMethyl orange, photocatalytic dye degradationVisible light |
| spellingShingle | Kumkum Priyadarshini Sahu Subhash Banerjee Metal-free degradation of methyl orange: unprecedented catalytic efficiency of rice husk-derived graphitic carbon Discover Materials Chemically activated graphitic carbon Biomass feedstock Methyl orange, photocatalytic dye degradation Visible light |
| title | Metal-free degradation of methyl orange: unprecedented catalytic efficiency of rice husk-derived graphitic carbon |
| title_full | Metal-free degradation of methyl orange: unprecedented catalytic efficiency of rice husk-derived graphitic carbon |
| title_fullStr | Metal-free degradation of methyl orange: unprecedented catalytic efficiency of rice husk-derived graphitic carbon |
| title_full_unstemmed | Metal-free degradation of methyl orange: unprecedented catalytic efficiency of rice husk-derived graphitic carbon |
| title_short | Metal-free degradation of methyl orange: unprecedented catalytic efficiency of rice husk-derived graphitic carbon |
| title_sort | metal free degradation of methyl orange unprecedented catalytic efficiency of rice husk derived graphitic carbon |
| topic | Chemically activated graphitic carbon Biomass feedstock Methyl orange, photocatalytic dye degradation Visible light |
| url | https://doi.org/10.1007/s43939-025-00325-4 |
| work_keys_str_mv | AT kumkumpriyadarshinisahu metalfreedegradationofmethylorangeunprecedentedcatalyticefficiencyofricehuskderivedgraphiticcarbon AT subhashbanerjee metalfreedegradationofmethylorangeunprecedentedcatalyticefficiencyofricehuskderivedgraphiticcarbon |