Importance of carbon structure for nitrogen and sulfur co-doping to promote superior ciprofloxacin removal via peroxymonosulfate activation
Herein, five N, S-co-doped carbocatalysts were prepared from different carbonaceous precursors, namely sawdust (SD), biochar (BC), carbon-nanotubes (CNTs), graphite (GP), and graphene oxide (GO) and compared. Generally, as the graphitization degree increased, the extent of N and S doping decreased,...
| Main Authors: | , , , , , , |
|---|---|
| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2023
|
| Subjects: | |
| Online Access: | https://hdl.handle.net/10356/164676 |
| _version_ | 1811684742440943616 |
|---|---|
| author | Mohamed Faisal Gasim Veksha, Andrei Lisak, Grzegorz Low, Siew-Chun Hamidon, Tuan Sherwyn M. Hazwan Hussin Oh, Wen-Da |
| author2 | School of Civil and Environmental Engineering |
| author_facet | School of Civil and Environmental Engineering Mohamed Faisal Gasim Veksha, Andrei Lisak, Grzegorz Low, Siew-Chun Hamidon, Tuan Sherwyn M. Hazwan Hussin Oh, Wen-Da |
| author_sort | Mohamed Faisal Gasim |
| collection | NTU |
| description | Herein, five N, S-co-doped carbocatalysts were prepared from different carbonaceous precursors, namely sawdust (SD), biochar (BC), carbon-nanotubes (CNTs), graphite (GP), and graphene oxide (GO) and compared. Generally, as the graphitization degree increased, the extent of N and S doping decreased, graphitic N configuration is preferred, and S configuration is unaltered. As peroxymonosulfate (PMS) activator for ciprofloxacin (CIP) removal, the catalytic performance was in order: NS-CNTs (0.037 min-1) > NS-BC (0.032 min-1) > NS-rGO (0.024 min-1) > NS-SD (0.010 min-1) > NS-GP (0.006 min-1), with the carbonaceous properties, rather than the heteroatoms content and textural properties, being the major factor affecting the catalytic performance. NS-CNTs was found to have the supreme catalytic activity due to its remarkable conductivity (3.38 S m-1) and defective sites (ID/IG = 1.28) with high anti-interference effect against organic and inorganic matter and varying water matrixes. The PMS activation pathway was dominated by singlet oxygen (1O2) generation and electron transfer regime between CIP and PMS activated complexes. The CIP degradation intermediates were identified, and a degradation pathway is proposed. Overall, this study provides a better understanding of the importance of selecting a suitable carbonaceous platform for heteroatoms doping to produce superior PMS activator for antibiotics decontamination. |
| first_indexed | 2024-10-01T04:33:28Z |
| format | Journal Article |
| id | ntu-10356/164676 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T04:33:28Z |
| publishDate | 2023 |
| record_format | dspace |
| spelling | ntu-10356/1646762023-02-08T04:24:35Z Importance of carbon structure for nitrogen and sulfur co-doping to promote superior ciprofloxacin removal via peroxymonosulfate activation Mohamed Faisal Gasim Veksha, Andrei Lisak, Grzegorz Low, Siew-Chun Hamidon, Tuan Sherwyn M. Hazwan Hussin Oh, Wen-Da School of Civil and Environmental Engineering Residues and Resource Reclamation Centre Nanyang Environment and Water Research Institute Engineering::Civil engineering Peroxymonosulfate Carbon Nanotubes Herein, five N, S-co-doped carbocatalysts were prepared from different carbonaceous precursors, namely sawdust (SD), biochar (BC), carbon-nanotubes (CNTs), graphite (GP), and graphene oxide (GO) and compared. Generally, as the graphitization degree increased, the extent of N and S doping decreased, graphitic N configuration is preferred, and S configuration is unaltered. As peroxymonosulfate (PMS) activator for ciprofloxacin (CIP) removal, the catalytic performance was in order: NS-CNTs (0.037 min-1) > NS-BC (0.032 min-1) > NS-rGO (0.024 min-1) > NS-SD (0.010 min-1) > NS-GP (0.006 min-1), with the carbonaceous properties, rather than the heteroatoms content and textural properties, being the major factor affecting the catalytic performance. NS-CNTs was found to have the supreme catalytic activity due to its remarkable conductivity (3.38 S m-1) and defective sites (ID/IG = 1.28) with high anti-interference effect against organic and inorganic matter and varying water matrixes. The PMS activation pathway was dominated by singlet oxygen (1O2) generation and electron transfer regime between CIP and PMS activated complexes. The CIP degradation intermediates were identified, and a degradation pathway is proposed. Overall, this study provides a better understanding of the importance of selecting a suitable carbonaceous platform for heteroatoms doping to produce superior PMS activator for antibiotics decontamination. This work was supported by the Universiti Sains Malaysia, Research University Team (RUTeam) Grant Scheme (Grant Number: 1001/PJKIMIA/8580061). 2023-02-08T04:24:35Z 2023-02-08T04:24:35Z 2023 Journal Article Mohamed Faisal Gasim, Veksha, A., Lisak, G., Low, S., Hamidon, T. S., M. Hazwan Hussin & Oh, W. (2023). Importance of carbon structure for nitrogen and sulfur co-doping to promote superior ciprofloxacin removal via peroxymonosulfate activation. Journal of Colloid and Interface Science, 634, 586-600. https://dx.doi.org/10.1016/j.jcis.2022.12.072 0021-9797 https://hdl.handle.net/10356/164676 10.1016/j.jcis.2022.12.072 36549207 2-s2.0-85144472564 634 586 600 en Journal of Colloid and Interface Science © 2022 Elsevier Inc. All rights reserved. |
| spellingShingle | Engineering::Civil engineering Peroxymonosulfate Carbon Nanotubes Mohamed Faisal Gasim Veksha, Andrei Lisak, Grzegorz Low, Siew-Chun Hamidon, Tuan Sherwyn M. Hazwan Hussin Oh, Wen-Da Importance of carbon structure for nitrogen and sulfur co-doping to promote superior ciprofloxacin removal via peroxymonosulfate activation |
| title | Importance of carbon structure for nitrogen and sulfur co-doping to promote superior ciprofloxacin removal via peroxymonosulfate activation |
| title_full | Importance of carbon structure for nitrogen and sulfur co-doping to promote superior ciprofloxacin removal via peroxymonosulfate activation |
| title_fullStr | Importance of carbon structure for nitrogen and sulfur co-doping to promote superior ciprofloxacin removal via peroxymonosulfate activation |
| title_full_unstemmed | Importance of carbon structure for nitrogen and sulfur co-doping to promote superior ciprofloxacin removal via peroxymonosulfate activation |
| title_short | Importance of carbon structure for nitrogen and sulfur co-doping to promote superior ciprofloxacin removal via peroxymonosulfate activation |
| title_sort | importance of carbon structure for nitrogen and sulfur co doping to promote superior ciprofloxacin removal via peroxymonosulfate activation |
| topic | Engineering::Civil engineering Peroxymonosulfate Carbon Nanotubes |
| url | https://hdl.handle.net/10356/164676 |
| work_keys_str_mv | AT mohamedfaisalgasim importanceofcarbonstructurefornitrogenandsulfurcodopingtopromotesuperiorciprofloxacinremovalviaperoxymonosulfateactivation AT vekshaandrei importanceofcarbonstructurefornitrogenandsulfurcodopingtopromotesuperiorciprofloxacinremovalviaperoxymonosulfateactivation AT lisakgrzegorz importanceofcarbonstructurefornitrogenandsulfurcodopingtopromotesuperiorciprofloxacinremovalviaperoxymonosulfateactivation AT lowsiewchun importanceofcarbonstructurefornitrogenandsulfurcodopingtopromotesuperiorciprofloxacinremovalviaperoxymonosulfateactivation AT hamidontuansherwyn importanceofcarbonstructurefornitrogenandsulfurcodopingtopromotesuperiorciprofloxacinremovalviaperoxymonosulfateactivation AT mhazwanhussin importanceofcarbonstructurefornitrogenandsulfurcodopingtopromotesuperiorciprofloxacinremovalviaperoxymonosulfateactivation AT ohwenda importanceofcarbonstructurefornitrogenandsulfurcodopingtopromotesuperiorciprofloxacinremovalviaperoxymonosulfateactivation |