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Boosting heterogeneous Fenton reactions for degrading organic dyes via the photothermal effect under neutral conditions

文献类型：期刊论文

作者Yan, Bin1; Shi, Ziqi1; Lin, Jiayou1; Zhang, Ling2; Han, Linbo3; Shi, Xingwei4; Yang, Qin1
刊名ENVIRONMENTAL SCIENCE-NANO
出版日期2021-12-21
页码10
ISSN号2051-8153
DOI10.1039/d1en00874a
英文摘要Although 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.
WOS关键词CATALYSTS ; EFFICIENT ; WATER ; NANOPARTICLES ; POLYDOPAMINE ; OXIDATION ; REMOVAL
资助项目National 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研究方向Chemistry ; Environmental Sciences & Ecology ; Science & Technology - Other Topics
语种英语
WOS记录号WOS:000739579400001
出版者ROYAL SOC CHEMISTRY
资助机构National 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
源URL[http://ir.ipe.ac.cn/handle/122111/51606]  
专题中国科学院过程工程研究所
通讯作者Zhang, Ling; Yang, Qin
作者单位1.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
推荐引用方式
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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来源：过程工程研究所

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