Deep mineralization of VOCs in an embedded hybrid structure CoFe2O4/MoS2/PMS wet scrubber system
Summary: Peroxymonosulfate (PMS)-based advanced oxidation processes in liquid phase systems can actively degrade toluene. In this work, the catechol structural surfactant was introduced to synthesize the dispersed and homogeneous CoFe2O4 nanospheres and embedded into MoS2 nanoflowers to form magneti...
| Main Authors: | , , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2023-10-01
|
| Series: | iScience |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2589004223021314 |
| _version_ | 1797647833852018688 |
|---|---|
| author | Xiai Zhang Wenquan Zhang Xinwei Zhang Jun Li Tong Wang Qikui Fan Hao Zhu Zhimao Yang Chuncai Kong |
| author_facet | Xiai Zhang Wenquan Zhang Xinwei Zhang Jun Li Tong Wang Qikui Fan Hao Zhu Zhimao Yang Chuncai Kong |
| author_sort | Xiai Zhang |
| collection | DOAJ |
| description | Summary: Peroxymonosulfate (PMS)-based advanced oxidation processes in liquid phase systems can actively degrade toluene. In this work, the catechol structural surfactant was introduced to synthesize the dispersed and homogeneous CoFe2O4 nanospheres and embedded into MoS2 nanoflowers to form magnetically separable heterojunction catalysts. The innovative approach effectively mitigated the traditionally low reduction efficiency of transition metal ions during the heterogeneous activation process. In CoFe2O4/MoS2/PMS system, the toluene removal efficiency remained 95% within 2 h. The contribution of SO4⋅-, ·O2−, ·OH, and 1O2 was revealed by radical quenching experiment and electron paramagnetic resonance spectroscopy. The results illustrated that MoS2 offers ample reduction sites for facilitating PMS activation via Fe3+/Fe2+ redox interactions. Furthermore, an investigation into the toluene degradation pathway within the CoFe2O4/MoS2/PMS system revealed its capability to suppress the formation of toxic byproducts. This ambient-temperature liquid-phase method presented promising route for the removal of industrial volatile organic pollutants. |
| first_indexed | 2024-03-11T15:22:15Z |
| format | Article |
| id | doaj.art-997c067c8ee9497098e22128d6d53ca0 |
| institution | Directory Open Access Journal |
| issn | 2589-0042 |
| language | English |
| last_indexed | 2024-03-11T15:22:15Z |
| publishDate | 2023-10-01 |
| publisher | Elsevier |
| record_format | Article |
| series | iScience |
| spelling | doaj.art-997c067c8ee9497098e22128d6d53ca02023-10-28T05:09:24ZengElsevieriScience2589-00422023-10-012610108054Deep mineralization of VOCs in an embedded hybrid structure CoFe2O4/MoS2/PMS wet scrubber systemXiai Zhang0Wenquan Zhang1Xinwei Zhang2Jun Li3Tong Wang4Qikui Fan5Hao Zhu6Zhimao Yang7Chuncai Kong8Ministry of Education Key Laboratory for Non-equilibrium Synthesis and Modulation of Condensed Matter, Shaanxi Province Key Laboratory of Advanced Functional Materials and Mesoscopic Physics, School of Physics, Xi’an Jiaotong University, Xi’an 710049, P.R. ChinaShaanxi Coal and Chemical Industry Technology Development Center Co., Ltd., Xi’an 710100, Shaanxi, P.R. ChinaMinistry of Education Key Laboratory for Non-equilibrium Synthesis and Modulation of Condensed Matter, Shaanxi Province Key Laboratory of Advanced Functional Materials and Mesoscopic Physics, School of Physics, Xi’an Jiaotong University, Xi’an 710049, P.R. ChinaMinistry of Education Key Laboratory for Non-equilibrium Synthesis and Modulation of Condensed Matter, Shaanxi Province Key Laboratory of Advanced Functional Materials and Mesoscopic Physics, School of Physics, Xi’an Jiaotong University, Xi’an 710049, P.R. ChinaMinistry of Education Key Laboratory for Non-equilibrium Synthesis and Modulation of Condensed Matter, Shaanxi Province Key Laboratory of Advanced Functional Materials and Mesoscopic Physics, School of Physics, Xi’an Jiaotong University, Xi’an 710049, P.R. ChinaMinistry of Education Key Laboratory for Non-equilibrium Synthesis and Modulation of Condensed Matter, Shaanxi Province Key Laboratory of Advanced Functional Materials and Mesoscopic Physics, School of Physics, Xi’an Jiaotong University, Xi’an 710049, P.R. ChinaKey Laboratory of Western China’s Environmental Systems (Ministry of Education) and Gansu Engineering Research Center of Fine Particles Pollution Control Technology and Equipment, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, P.R. ChinaMinistry of Education Key Laboratory for Non-equilibrium Synthesis and Modulation of Condensed Matter, Shaanxi Province Key Laboratory of Advanced Functional Materials and Mesoscopic Physics, School of Physics, Xi’an Jiaotong University, Xi’an 710049, P.R. ChinaMinistry of Education Key Laboratory for Non-equilibrium Synthesis and Modulation of Condensed Matter, Shaanxi Province Key Laboratory of Advanced Functional Materials and Mesoscopic Physics, School of Physics, Xi’an Jiaotong University, Xi’an 710049, P.R. China; Corresponding authorSummary: Peroxymonosulfate (PMS)-based advanced oxidation processes in liquid phase systems can actively degrade toluene. In this work, the catechol structural surfactant was introduced to synthesize the dispersed and homogeneous CoFe2O4 nanospheres and embedded into MoS2 nanoflowers to form magnetically separable heterojunction catalysts. The innovative approach effectively mitigated the traditionally low reduction efficiency of transition metal ions during the heterogeneous activation process. In CoFe2O4/MoS2/PMS system, the toluene removal efficiency remained 95% within 2 h. The contribution of SO4⋅-, ·O2−, ·OH, and 1O2 was revealed by radical quenching experiment and electron paramagnetic resonance spectroscopy. The results illustrated that MoS2 offers ample reduction sites for facilitating PMS activation via Fe3+/Fe2+ redox interactions. Furthermore, an investigation into the toluene degradation pathway within the CoFe2O4/MoS2/PMS system revealed its capability to suppress the formation of toxic byproducts. This ambient-temperature liquid-phase method presented promising route for the removal of industrial volatile organic pollutants.http://www.sciencedirect.com/science/article/pii/S2589004223021314CatalysisGreen chemistryEnvironmental scienceMaterials science |
| spellingShingle | Xiai Zhang Wenquan Zhang Xinwei Zhang Jun Li Tong Wang Qikui Fan Hao Zhu Zhimao Yang Chuncai Kong Deep mineralization of VOCs in an embedded hybrid structure CoFe2O4/MoS2/PMS wet scrubber system iScience Catalysis Green chemistry Environmental science Materials science |
| title | Deep mineralization of VOCs in an embedded hybrid structure CoFe2O4/MoS2/PMS wet scrubber system |
| title_full | Deep mineralization of VOCs in an embedded hybrid structure CoFe2O4/MoS2/PMS wet scrubber system |
| title_fullStr | Deep mineralization of VOCs in an embedded hybrid structure CoFe2O4/MoS2/PMS wet scrubber system |
| title_full_unstemmed | Deep mineralization of VOCs in an embedded hybrid structure CoFe2O4/MoS2/PMS wet scrubber system |
| title_short | Deep mineralization of VOCs in an embedded hybrid structure CoFe2O4/MoS2/PMS wet scrubber system |
| title_sort | deep mineralization of vocs in an embedded hybrid structure cofe2o4 mos2 pms wet scrubber system |
| topic | Catalysis Green chemistry Environmental science Materials science |
| url | http://www.sciencedirect.com/science/article/pii/S2589004223021314 |
| work_keys_str_mv | AT xiaizhang deepmineralizationofvocsinanembeddedhybridstructurecofe2o4mos2pmswetscrubbersystem AT wenquanzhang deepmineralizationofvocsinanembeddedhybridstructurecofe2o4mos2pmswetscrubbersystem AT xinweizhang deepmineralizationofvocsinanembeddedhybridstructurecofe2o4mos2pmswetscrubbersystem AT junli deepmineralizationofvocsinanembeddedhybridstructurecofe2o4mos2pmswetscrubbersystem AT tongwang deepmineralizationofvocsinanembeddedhybridstructurecofe2o4mos2pmswetscrubbersystem AT qikuifan deepmineralizationofvocsinanembeddedhybridstructurecofe2o4mos2pmswetscrubbersystem AT haozhu deepmineralizationofvocsinanembeddedhybridstructurecofe2o4mos2pmswetscrubbersystem AT zhimaoyang deepmineralizationofvocsinanembeddedhybridstructurecofe2o4mos2pmswetscrubbersystem AT chuncaikong deepmineralizationofvocsinanembeddedhybridstructurecofe2o4mos2pmswetscrubbersystem |