Abstract
Fe–N co-doped carbon catalyst has drawn increasing attention in the field of Fenton-like degradation of organic wastewater due to their unique structure and high activity. In this study, Fe–N co-doped carbon catalyst with high catalytic efficiency was prepared by one-step pyrolysis modified chitosan with iron ion absorption, and their property was characterized by XRD, BET, XPS and FTIR. The results demonstrated that the Fe–N co-doped carbon catalyst (αFe@CTS-T) has abundant porous structure, surface functional groups, and unique Fe–Nx configuration, which exhibited a superior catalytic ability for degradation of RhB in H2O2 system, and the removal efficiency of RhB was as high as 99.5% within 30min. In addition, further mechanistic insights by contrast and quenching experiments verified that high removal efficient of RhB mainly attribute to indirect oxidation of surface-bound radicals, 1O2 in the H2O2 system, and the pathway of radical generation was proposed.
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Acknowledgements
This research was supported by National Natural Science Foundation of China (NSAF Grant No. U2030207); Science Research Foundation of Yunnan Provincial Education Department (2022J0441); Yunnan Fundamental Research Projects (202201BE070001-018); National College Student Innovation and Entrepreneurship Training Program Project (202310622008); National Natural Science Foundation of China (22106112); Sichuan Province Science and Technology Support Program (2023NSFSC1118); Zigong Provincial Transfer Payment Technology Support Program (2021SZYZF01); Returned Overseas Program of Sichuan University of Science and Engineering (2021RC25); Vanadium and Titanium Resources Utilization Key Laboratory of Sichuan Province (2018FTSZ12, 2018FTSZ18); Opening Project of Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province (CSPC202107); Innovation and Entrepreneurship Training Program of Sichuan University of Science and Engineering (S202010622052); The Innovation Fund of Postgraduate, Sichuan University of Science & Engineering (Y2022020).
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Caiyi Jiang involved in conception, supervision, data curation and writing—original draft. Ming Hou involved in methodology and experimental design. Li Yang involved in validation and supervision. Bo Xing involved in conception and supervision. Shenghui Guo involved in conception, and funding acquisition, Guo Yang involved writing—review and editing, supervision. Yi Wang involved in validation and supervision. Dongzheng Wang and Siyang Zhang involved in experimental data collection and collation.
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Jiang, C., Xing, B., Yang, L. et al. Fe–N co-doped carbon derived from one-step pyrolysis modified chitosan for activating H2O2 to degrade organic wastewater. J Mater Sci (2024). https://doi.org/10.1007/s10853-024-09718-x
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DOI: https://doi.org/10.1007/s10853-024-09718-x