Academic Journal
Activation of peroxymonosulfate by cow manure biochar@1T-MoS2 for enhancing degradation of dimethyl phthalate: Performance and mechanism
| العنوان: | Activation of peroxymonosulfate by cow manure biochar@1T-MoS2 for enhancing degradation of dimethyl phthalate: Performance and mechanism |
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| المؤلفون: | He, Yutian, Wang, Xinzhi, Ke, Yuhan, Qiu, Yiquan, Zhou, Qiao, Shen, Zheyu, Xie, Han, Li, Yingqiang, Huang, Mingzhi |
| المساهمون: | National Natural Science Foundation of China, Guangzhou Municipal Science and Technology Project, Natural Science Foundation of Fujian Province |
| المصدر: | Frontiers in Environmental Science ; volume 11 ; ISSN 2296-665X |
| بيانات النشر: | Frontiers Media SA |
| سنة النشر: | 2023 |
| المجموعة: | Frontiers (Publisher - via CrossRef) |
| الوصف: | Introduction: Dimethyl phthalate (DMP) which has been widely detected in water is neurotoxic to humans and should be effectively eliminated. Persulfate-based advanced oxidation processes are considered to be reliable methods aiming at emerging contaminants degradation, while an efficient catalyst is urgently needed for the activation of the reaction. As a typical 2D material, 1T-MoS 2 is expected to be applied to the activation of persulfate owing to its abundant active sites and excellent electrical conductivity. In practical applications, 1T-MoS 2 has the phenomenon of reunion which affects the exposure of its catalytic sites. Methods: Therefore, in this study, we used waste cow manure as a raw material to prepare biochar and achieved high exposure of 1T-MoS 2 activation sites by loading 1T-MoS 2 onto the surface of cow manure biochar through hydrothermal synthesis. The prepared composite catalytic material CMB@1T-MoS 2 was used to activate PMS for the degradation of DMP. Results: It was found that CMB@1T-MoS 2 has better effect than CMB or 1T-MoS 2 alone for the degradation of DMP, reaching 77.65% at pH = 3. Under alkaline conditions, the degradation rate of DMP was reduced due to the inhibition of the catalytic process. Among the different coexisting anions, HCO-3 interfered and inhibited the degradation process the most, leading to the lowest degradation rate of DMP with 42.45%. Discussion: The quenching experiments and EPR analysis showed that SO - 4 • and •OH were the main ROS in the CMB@1T-MoS 2 /PMS process. This study promotes the resourceful use of cow manure and is expected to provide a novel persulfate-based advanced oxidation process catalyzed by CMB@1T-MoS 2 for the elimination of DMP in an aqueous environment. |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | unknown |
| DOI: | 10.3389/fenvs.2023.1112801 |
| DOI: | 10.3389/fenvs.2023.1112801/full |
| الاتاحة: | http://dx.doi.org/10.3389/fenvs.2023.1112801 https://www.frontiersin.org/articles/10.3389/fenvs.2023.1112801/full |
| Rights: | https://creativecommons.org/licenses/by/4.0/ |
| رقم الانضمام: | edsbas.C83A3490 |
| قاعدة البيانات: | BASE |
| DOI: | 10.3389/fenvs.2023.1112801 |
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