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Boosting heterogeneous Fenton reactions for degrading organic dyes via the photothermal effect under neutral conditions
Yan, Bin1; Shi, Ziqi1; Lin, Jiayou1; Zhang, Ling2; Han, Linbo3; Shi, Xingwei4; Yang, Qin1
2021-12-21
Source PublicationENVIRONMENTAL SCIENCE-NANO
ISSN2051-8153
Pages10
AbstractAlthough the heterogeneous Fenton reaction has shown great promise in the remediation of refractory organic pollutants, its widespread application is still limited by the insufficient degradation performance under neutral conditions. Here, we present a photothermal-driven heterogeneous Fenton system capable of rapidly and sustainably degrading organic dyes under neutral conditions. A magnetic heterogeneous Fenton-like iron-based catalyst (MIC) was successfully constructed by loading Fe3O4 nanoparticles in hierarchically porous polydopamine (PDA) supports with excellent photothermal effect. After activating with near-infrared (NIR) irradiation, the PDA support can serve as an internal heating source to efficiently promote the iron-catalyzed decomposition efficiency of H2O2 to OH radical and the oxidation capacity of OH radical to organic pollutants. As a result, the resulting photothermal-driven heterogeneous Fenton system exhibits outstanding degradation performance for organic pollutants (e.g., methylene blue (MB) as a model pollutant) at pH 7.0. Even if the MB solution reaches an extremely high concentration of 200 mg L-1, MIC can degrade 97.7% of MB in only 6 minutes under NIR irradiation. This degradation performance is much better than its counterparts without NIR irradiation and outperforms traditional homogeneous Fenton reactions under acidic conditions. Meanwhile, the developed MIC shows excellent catalytic stability and recyclability. After 5 cycles, the regenerated MIC could still retain more than 98.8% of the original degradation efficiency. This study provides a feasible and guiding strategy for effectively improving the degradation performance of the heterogeneous Fenton system under neutral conditions via the photothermal effect, which not only can greatly expand the applicability of the heterogeneous Fenton reaction but also give some insights into how to develop the photothermal-driven heterogeneous Fenton systems activated by solar energy.
DOI10.1039/d1en00874a
Language英语
WOS KeywordCATALYSTS ; EFFICIENT ; WATER ; NANOPARTICLES ; POLYDOPAMINE ; OXIDATION ; REMOVAL
Funding ProjectNational Natural Science Foundation of China[21876119] ; Special Engineering Team of Sichuan University[2020SCUNG122] ; Opening Fund of Shandong Key Laboratory of Oilfield Chemistry ; Fundamental Research Funds for the Central Universities[19CX05006A]
WOS Research AreaChemistry ; Environmental Sciences & Ecology ; Science & Technology - Other Topics
WOS SubjectChemistry, Multidisciplinary ; Environmental Sciences ; Nanoscience & Nanotechnology
Funding OrganizationNational Natural Science Foundation of China ; Special Engineering Team of Sichuan University ; Opening Fund of Shandong Key Laboratory of Oilfield Chemistry ; Fundamental Research Funds for the Central Universities
WOS IDWOS:000739579400001
PublisherROYAL SOC CHEMISTRY
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/51607
Collection中国科学院过程工程研究所
Corresponding AuthorZhang, Ling; Yang, Qin
Affiliation1.Sichuan Univ, Coll Biomass Sci & Engn, Natl Engn Lab Clean Technol Leather Manufacture, Chengdu 610065, Peoples R China
2.Zhengzhou Univ, Sch Chem Engn, Zhengzhou 450001, Peoples R China
3.Shenzhen Technol Univ, Coll Hlth Sci & Environm Engn, Shenzhen, Peoples R China
4.Chinese Acad Sci, Inst Proc Engn, Beijing Key Lab Ion Liquids Clean Proc, CAS Key Lab Green Proc & Engn, Beijing 100190, Peoples R China
Recommended Citation
GB/T 7714
Yan, Bin,Shi, Ziqi,Lin, Jiayou,et al. Boosting heterogeneous Fenton reactions for degrading organic dyes via the photothermal effect under neutral conditions[J]. ENVIRONMENTAL SCIENCE-NANO,2021:10.
APA Yan, Bin.,Shi, Ziqi.,Lin, Jiayou.,Zhang, Ling.,Han, Linbo.,...&Yang, Qin.(2021).Boosting heterogeneous Fenton reactions for degrading organic dyes via the photothermal effect under neutral conditions.ENVIRONMENTAL SCIENCE-NANO,10.
MLA Yan, Bin,et al."Boosting heterogeneous Fenton reactions for degrading organic dyes via the photothermal effect under neutral conditions".ENVIRONMENTAL SCIENCE-NANO (2021):10.
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