Enhanced BiFeO₃/Bi₂Fe4O₉/H₂O₂ heterogeneous system for sulfamethoxazole decontamination : system optimization and degradation pathways
Sulfonamides as the major antibiotic have become emerging contaminants worldwide in aquatic environments. Herein, a heterogeneous Fenton-like oxidation driven by a novel BF-PMCs bismuth ferrites reported firstly for efficient degradation of sulfamethoxazole (SMX) in which the possible degradation pa...
| Main Authors: | , , , , , , , , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2021
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| Online Access: | https://hdl.handle.net/10356/154542 |
| _version_ | 1826111146836361216 |
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| author | Hu, Zhong-Ting Liu, Jia-Wei Zhao, Jia Ding, Yin Jin, Ziyan Chen, Jinghuan Dai, Qizhou Pan, Bingjun Chen, Zhong Chen, Jianmeng |
| author2 | School of Materials Science and Engineering |
| author_facet | School of Materials Science and Engineering Hu, Zhong-Ting Liu, Jia-Wei Zhao, Jia Ding, Yin Jin, Ziyan Chen, Jinghuan Dai, Qizhou Pan, Bingjun Chen, Zhong Chen, Jianmeng |
| author_sort | Hu, Zhong-Ting |
| collection | NTU |
| description | Sulfonamides as the major antibiotic have become emerging contaminants worldwide in aquatic environments. Herein, a heterogeneous Fenton-like oxidation driven by a novel BF-PMCs bismuth ferrites reported firstly for efficient degradation of sulfamethoxazole (SMX) in which the possible degradation pathways are thoroughly analyzed through identifying some of key intermediates (i.e., C8H11N3O4S, C4H4NO2, etc.) using liquid chromatography-mass spectrum (LC-MS), monitoring organic acids (i.e., acetic acid, pyruvic acid) and inorganic anions (i.e., sulfate, nitrate) using ion chromatography (IC), and detecting radical species (i.e., HO) using both chemical quenchers and fluorescence technique, simultaneously. The optimal operations in BF-PMCs/H2O2 system for SMX degradation are recommended at the conditions of initial pH ~4.5, 1.5 mg L-1 [SMX], 70 mM [H2O2], and BF-PMCs loading of 0.2 g L-1. The degradation rates (kinetic value of kapp) for SMX, azoxystrobin, bisphenol A, and 2,4-dichlorophenol are 9.5 × 10-3, 13.6 × 10-3, 7.3 × 10-3, and 5.9 × 10-3 min-1, respectively. Meanwhile, the degradation rates in BF-PMCs/H2O2 system for SMX degradation are slightly slower in the presence of inorganic anions (e.g., Cl-, NO3-) and NOM (e.g., humic acid). Based on an overall consideration, the BF-PMCs/H2O2 system has great potential for degradation of emerging organic pollutants (EOPs) in natural water systems. |
| first_indexed | 2024-10-01T02:45:52Z |
| format | Journal Article |
| id | ntu-10356/154542 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T02:45:52Z |
| publishDate | 2021 |
| record_format | dspace |
| spelling | ntu-10356/1545422021-12-28T02:53:25Z Enhanced BiFeO₃/Bi₂Fe4O₉/H₂O₂ heterogeneous system for sulfamethoxazole decontamination : system optimization and degradation pathways Hu, Zhong-Ting Liu, Jia-Wei Zhao, Jia Ding, Yin Jin, Ziyan Chen, Jinghuan Dai, Qizhou Pan, Bingjun Chen, Zhong Chen, Jianmeng School of Materials Science and Engineering Engineering::Materials Heterogeneous Fenton-Like Oxidation Sulfamethoxazole Sulfonamides as the major antibiotic have become emerging contaminants worldwide in aquatic environments. Herein, a heterogeneous Fenton-like oxidation driven by a novel BF-PMCs bismuth ferrites reported firstly for efficient degradation of sulfamethoxazole (SMX) in which the possible degradation pathways are thoroughly analyzed through identifying some of key intermediates (i.e., C8H11N3O4S, C4H4NO2, etc.) using liquid chromatography-mass spectrum (LC-MS), monitoring organic acids (i.e., acetic acid, pyruvic acid) and inorganic anions (i.e., sulfate, nitrate) using ion chromatography (IC), and detecting radical species (i.e., HO) using both chemical quenchers and fluorescence technique, simultaneously. The optimal operations in BF-PMCs/H2O2 system for SMX degradation are recommended at the conditions of initial pH ~4.5, 1.5 mg L-1 [SMX], 70 mM [H2O2], and BF-PMCs loading of 0.2 g L-1. The degradation rates (kinetic value of kapp) for SMX, azoxystrobin, bisphenol A, and 2,4-dichlorophenol are 9.5 × 10-3, 13.6 × 10-3, 7.3 × 10-3, and 5.9 × 10-3 min-1, respectively. Meanwhile, the degradation rates in BF-PMCs/H2O2 system for SMX degradation are slightly slower in the presence of inorganic anions (e.g., Cl-, NO3-) and NOM (e.g., humic acid). Based on an overall consideration, the BF-PMCs/H2O2 system has great potential for degradation of emerging organic pollutants (EOPs) in natural water systems. The authors would like to acknowledge the National Key Research and Development Project (2018YFC0214100), the Natural Science Foundation of Zhejiang Province (Y19B070015), the Zhejiang University of Technology Initial Research Foundation (2018129000929), the Xinmiao Program for Talents from Zhejiang Province (2019R403064), and the National Training Program of Innovation and Entrepreneurship for Undergraduates (201910337016) for financial support. 2021-12-28T02:53:25Z 2021-12-28T02:53:25Z 2020 Journal Article Hu, Z., Liu, J., Zhao, J., Ding, Y., Jin, Z., Chen, J., Dai, Q., Pan, B., Chen, Z. & Chen, J. (2020). Enhanced BiFeO₃/Bi₂Fe4O₉/H₂O₂ heterogeneous system for sulfamethoxazole decontamination : system optimization and degradation pathways. Journal of Colloid and Interface Science, 577, 54-65-65. https://dx.doi.org/10.1016/j.jcis.2020.05.043 1095-7103 https://hdl.handle.net/10356/154542 10.1016/j.jcis.2020.05.043 32474189 2-s2.0-85085269978 577 54-65 65 en Journal of Colloid and Interface Science © 2020 Published by Elsevier Inc |
| spellingShingle | Engineering::Materials Heterogeneous Fenton-Like Oxidation Sulfamethoxazole Hu, Zhong-Ting Liu, Jia-Wei Zhao, Jia Ding, Yin Jin, Ziyan Chen, Jinghuan Dai, Qizhou Pan, Bingjun Chen, Zhong Chen, Jianmeng Enhanced BiFeO₃/Bi₂Fe4O₉/H₂O₂ heterogeneous system for sulfamethoxazole decontamination : system optimization and degradation pathways |
| title | Enhanced BiFeO₃/Bi₂Fe4O₉/H₂O₂ heterogeneous system for sulfamethoxazole decontamination : system optimization and degradation pathways |
| title_full | Enhanced BiFeO₃/Bi₂Fe4O₉/H₂O₂ heterogeneous system for sulfamethoxazole decontamination : system optimization and degradation pathways |
| title_fullStr | Enhanced BiFeO₃/Bi₂Fe4O₉/H₂O₂ heterogeneous system for sulfamethoxazole decontamination : system optimization and degradation pathways |
| title_full_unstemmed | Enhanced BiFeO₃/Bi₂Fe4O₉/H₂O₂ heterogeneous system for sulfamethoxazole decontamination : system optimization and degradation pathways |
| title_short | Enhanced BiFeO₃/Bi₂Fe4O₉/H₂O₂ heterogeneous system for sulfamethoxazole decontamination : system optimization and degradation pathways |
| title_sort | enhanced bifeo₃ bi₂fe4o₉ h₂o₂ heterogeneous system for sulfamethoxazole decontamination system optimization and degradation pathways |
| topic | Engineering::Materials Heterogeneous Fenton-Like Oxidation Sulfamethoxazole |
| url | https://hdl.handle.net/10356/154542 |
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