Bread-making synthesis of hierarchically Co@C nanoarchitecture in heteroatom doped porous carbons for oxidative degradation of emerging contaminants
Employing low-cost and abundant wheat flour, sodium bicarbonate, cysteine and cobalt nitrate as precursors, we for the first time present a facile one-pot pyrolysis strategy for homogeneous assembly of core-shell Co@C nanoparticles with nitrogen and sulfur into hierarchically porous carbons (Co-N-S-...
| Main Authors: | , , , , , , , |
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| Format: | Journal Article |
| Published: |
Elsevier BV
2018
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| Online Access: | http://purl.org/au-research/grants/arc/DP150103026 http://hdl.handle.net/20.500.11937/59290 |
| _version_ | 1848760439192682496 |
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| author | Tian, W. Zhang, H. Qian, Z. Ouyang, T. Sun, H. Qin, J. Tade, Moses Wang, Shaobin |
| author_facet | Tian, W. Zhang, H. Qian, Z. Ouyang, T. Sun, H. Qin, J. Tade, Moses Wang, Shaobin |
| author_sort | Tian, W. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | Employing low-cost and abundant wheat flour, sodium bicarbonate, cysteine and cobalt nitrate as precursors, we for the first time present a facile one-pot pyrolysis strategy for homogeneous assembly of core-shell Co@C nanoparticles with nitrogen and sulfur into hierarchically porous carbons (Co-N-S-PCs). The samples are highly efficient for oxidative decomposition of p-hydroxybenzoic acid (HBA) and phenol. It was found that Co@C nanoparticles are crucial for the generation of singlet oxygen in advanced oxidation processes (AOPs), which works together with hydroxyl and sulfate radicals in efficient decomposition of HBA. Density functional theory (DFT) calculations disclose that electron transfer from metal Co to C shells greatly improves the Fermi level and chemical activity of the C atoms. The combination of Co-C interaction with N, S codoping further bring in catalytic active sites in the graphitic shells where the charge states of C atoms are increased. This template-free strategy is scalable to prepare highly efficient catalysts, including functional carbon materials modified with non-precious metal species or pure and well-dispersed porous core-shell nanoparticles for environmental or energy applications. |
| first_indexed | 2025-11-14T10:15:47Z |
| format | Journal Article |
| id | curtin-20.500.11937-59290 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T10:15:47Z |
| publishDate | 2018 |
| publisher | Elsevier BV |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-592902022-10-26T07:12:57Z Bread-making synthesis of hierarchically Co@C nanoarchitecture in heteroatom doped porous carbons for oxidative degradation of emerging contaminants Tian, W. Zhang, H. Qian, Z. Ouyang, T. Sun, H. Qin, J. Tade, Moses Wang, Shaobin Employing low-cost and abundant wheat flour, sodium bicarbonate, cysteine and cobalt nitrate as precursors, we for the first time present a facile one-pot pyrolysis strategy for homogeneous assembly of core-shell Co@C nanoparticles with nitrogen and sulfur into hierarchically porous carbons (Co-N-S-PCs). The samples are highly efficient for oxidative decomposition of p-hydroxybenzoic acid (HBA) and phenol. It was found that Co@C nanoparticles are crucial for the generation of singlet oxygen in advanced oxidation processes (AOPs), which works together with hydroxyl and sulfate radicals in efficient decomposition of HBA. Density functional theory (DFT) calculations disclose that electron transfer from metal Co to C shells greatly improves the Fermi level and chemical activity of the C atoms. The combination of Co-C interaction with N, S codoping further bring in catalytic active sites in the graphitic shells where the charge states of C atoms are increased. This template-free strategy is scalable to prepare highly efficient catalysts, including functional carbon materials modified with non-precious metal species or pure and well-dispersed porous core-shell nanoparticles for environmental or energy applications. 2018 Journal Article http://hdl.handle.net/20.500.11937/59290 10.1016/j.apcatb.2017.11.056 http://purl.org/au-research/grants/arc/DP150103026 Elsevier BV restricted |
| spellingShingle | Tian, W. Zhang, H. Qian, Z. Ouyang, T. Sun, H. Qin, J. Tade, Moses Wang, Shaobin Bread-making synthesis of hierarchically Co@C nanoarchitecture in heteroatom doped porous carbons for oxidative degradation of emerging contaminants |
| title | Bread-making synthesis of hierarchically Co@C nanoarchitecture in heteroatom doped porous carbons for oxidative degradation of emerging contaminants |
| title_full | Bread-making synthesis of hierarchically Co@C nanoarchitecture in heteroatom doped porous carbons for oxidative degradation of emerging contaminants |
| title_fullStr | Bread-making synthesis of hierarchically Co@C nanoarchitecture in heteroatom doped porous carbons for oxidative degradation of emerging contaminants |
| title_full_unstemmed | Bread-making synthesis of hierarchically Co@C nanoarchitecture in heteroatom doped porous carbons for oxidative degradation of emerging contaminants |
| title_short | Bread-making synthesis of hierarchically Co@C nanoarchitecture in heteroatom doped porous carbons for oxidative degradation of emerging contaminants |
| title_sort | bread-making synthesis of hierarchically co@c nanoarchitecture in heteroatom doped porous carbons for oxidative degradation of emerging contaminants |
| url | http://purl.org/au-research/grants/arc/DP150103026 http://hdl.handle.net/20.500.11937/59290 |