Nitrogen-Sulfur And Nitrogen-Boron Co-Doped Biochar As Peroxymonosulfate Activator For Fluoroquinolone Antibiotics Removal
Recently, the application of multi-heteroatom-doped carbocatalyst in peroxymonosulfate (PMS)-based advanced oxidation processes for removing recalcitrant pollutant has been increasingly studied. As the studies on multi-heteroatom-doped carbocatalyst in PMS activation is still nascent, the main objec...
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| Format: | Thesis |
| Language: | English |
| Published: |
2023
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| Online Access: | http://eprints.usm.my/61263/1/24%20Pages%20from%20CHOONG%20ZHENG%20YI.pdf |
| _version_ | 1825908441039765504 |
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| author | Choong, Zheng Yi |
| author_facet | Choong, Zheng Yi |
| author_sort | Choong, Zheng Yi |
| collection | USM |
| description | Recently, the application of multi-heteroatom-doped carbocatalyst in peroxymonosulfate (PMS)-based advanced oxidation processes for removing recalcitrant pollutant has been increasingly studied. As the studies on multi-heteroatom-doped carbocatalyst in PMS activation is still nascent, the main objective of this study is to study various multi-heteroatom-doped biochar for PMS activation. In the first part of the study (Chapter 4), a series of N, S-co-doped biochar (BSN-Ts) were prepared at different temperature using one-step calcination method. Through various characterization, it was found that g-C3N4 was first formed by polymerization of urea and thiourea, and engulf the biochar. At higher synthesis temperature, the g-C3N4 decomposed and coalesce with the biochar, forming BSN-Ts. The performance of BSN-Ts as PMS activators for gatifloxacin (GAT) removal were evaluated and were found that BSN-Ts prepared at 800 oC (BSN-800) showed the greatest performance due to its relatively high specific surface area (SBET = 419 m2 g-1) and synergism between heteroatoms. |
| first_indexed | 2024-12-09T02:32:33Z |
| format | Thesis |
| id | usm.eprints-61263 |
| institution | Universiti Sains Malaysia |
| language | English |
| last_indexed | 2024-12-09T02:32:33Z |
| publishDate | 2023 |
| record_format | dspace |
| spelling | usm.eprints-612632024-10-10T03:44:16Z http://eprints.usm.my/61263/ Nitrogen-Sulfur And Nitrogen-Boron Co-Doped Biochar As Peroxymonosulfate Activator For Fluoroquinolone Antibiotics Removal Choong, Zheng Yi QD1-999 Chemistry Recently, the application of multi-heteroatom-doped carbocatalyst in peroxymonosulfate (PMS)-based advanced oxidation processes for removing recalcitrant pollutant has been increasingly studied. As the studies on multi-heteroatom-doped carbocatalyst in PMS activation is still nascent, the main objective of this study is to study various multi-heteroatom-doped biochar for PMS activation. In the first part of the study (Chapter 4), a series of N, S-co-doped biochar (BSN-Ts) were prepared at different temperature using one-step calcination method. Through various characterization, it was found that g-C3N4 was first formed by polymerization of urea and thiourea, and engulf the biochar. At higher synthesis temperature, the g-C3N4 decomposed and coalesce with the biochar, forming BSN-Ts. The performance of BSN-Ts as PMS activators for gatifloxacin (GAT) removal were evaluated and were found that BSN-Ts prepared at 800 oC (BSN-800) showed the greatest performance due to its relatively high specific surface area (SBET = 419 m2 g-1) and synergism between heteroatoms. 2023-02 Thesis NonPeerReviewed application/pdf en http://eprints.usm.my/61263/1/24%20Pages%20from%20CHOONG%20ZHENG%20YI.pdf Choong, Zheng Yi (2023) Nitrogen-Sulfur And Nitrogen-Boron Co-Doped Biochar As Peroxymonosulfate Activator For Fluoroquinolone Antibiotics Removal. Masters thesis, Perpustakaan Hamzah Sendut. |
| spellingShingle | QD1-999 Chemistry Choong, Zheng Yi Nitrogen-Sulfur And Nitrogen-Boron Co-Doped Biochar As Peroxymonosulfate Activator For Fluoroquinolone Antibiotics Removal |
| title | Nitrogen-Sulfur And Nitrogen-Boron Co-Doped Biochar As Peroxymonosulfate Activator For Fluoroquinolone Antibiotics Removal |
| title_full | Nitrogen-Sulfur And Nitrogen-Boron Co-Doped Biochar As Peroxymonosulfate Activator For Fluoroquinolone Antibiotics Removal |
| title_fullStr | Nitrogen-Sulfur And Nitrogen-Boron Co-Doped Biochar As Peroxymonosulfate Activator For Fluoroquinolone Antibiotics Removal |
| title_full_unstemmed | Nitrogen-Sulfur And Nitrogen-Boron Co-Doped Biochar As Peroxymonosulfate Activator For Fluoroquinolone Antibiotics Removal |
| title_short | Nitrogen-Sulfur And Nitrogen-Boron Co-Doped Biochar As Peroxymonosulfate Activator For Fluoroquinolone Antibiotics Removal |
| title_sort | nitrogen sulfur and nitrogen boron co doped biochar as peroxymonosulfate activator for fluoroquinolone antibiotics removal |
| topic | QD1-999 Chemistry |
| url | http://eprints.usm.my/61263/1/24%20Pages%20from%20CHOONG%20ZHENG%20YI.pdf |
| work_keys_str_mv | AT choongzhengyi nitrogensulfurandnitrogenboroncodopedbiocharasperoxymonosulfateactivatorforfluoroquinoloneantibioticsremoval |